Information Services | NASA/IPAC Extragalactic Database

Observed Region:	Integrated	Telescope Name:	Arecibo 305m
Band (Line):	Radio(H I)	Instrument Name:	Line-feed system
Start Channel:	-2000.2 km s^-1	Disperser Type:	N/A
End Channel:	3293.5 km s^-1	Detector Type:	Correlator
Channel Step:	5.2 km s^-1	Observation Mode:	Beam
Spectral Resolution:	11.0 km s^-1	Aperture/Beam Size:	210.0 arcsec × 228.0 arcsec
Mean Resolving Power:	27315.0	Extracted Region Size:	N/A
Seeing:	N/A	Position Angle of Slit:	N/A
Airmass:	N/A	Dimension of Spectrum:	1 D
Integration Time:	N/A	Number of Pixels:	1024
Flux Units:	mJy	Reference Frame:	Observed
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	Yes
Sky Subtraction:	Yes	Quality Flag(s):	N/A
Reference:	2011AJ....142..170H
Notes:	N/A

DSS Image & Aperture/Beam

PA = N/A

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FITS	29.8kb
Author-ASCII	63.9kb
NED-ASCII	131.5kb
VOTable	123.0kb

OBJECT INFORMATION

Published Values

NED Cross-Identified Values

Name:

UGC 07796

Position (J2000):

12h37m43.50s

+11d49m05.02s

12h37m43.52s

+11d49m05.50s

Origin:	FITS-Header
System:	Equatorial
Type:	Decimal-Degrees
Equinox:	J2000

189.43124

11.81806

OBSERVATIONAL DETAILS

Observed Region:	Integrated	Telescope Name:	Arecibo 305m
Band (Line):	Radio(HI)	Instrument Name:	L-wide receiver
Start Channel:	-2000.2 km s^-1	Disperser Type:	N/A
End Channel:	3293.5 km s^-1	Detector Type:	Correlator
Channel Step:	5.2 km s^-1	Observation Mode:	Beam
Spectral Resolution:	11.0 km s^-1	Aperture/Beam Size:	210.0 arcsec × 228.0 arcsec
Mean Resolving Power:	27315.0	Extracted Region Size:	N/A
Seeing:	N/A	Position Angle of Slit:	N/A
Airmass:	N/A	Dimension of Spectrum:	1 D
Integration Time:	N/A	Number of Pixels:	1024
Flux Units:	mJy	Reference Frame:	Observed
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	Yes
Sky Subtraction:	Yes	Quality Flag(s):	N/A
Reference:	2018ApJ...861...49H
Notes:	N/A

DSS Image & Aperture/Beam

PA = N/A

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FITS	N/A
Author-ASCII	80.8kb
NED-ASCII	303.0kb
VOTable	282.1kb
External Resource

OBJECT INFORMATION

Published Values

NED Cross-Identified Values

Name:

NGC 4579

Position (J2000):

12h37m43.52s

+11d49m05.50s

12h37m43.52s

+11d49m05.50s

Origin:	N/A
System:	Equatorial
Type:	Decimal-Degrees
Equinox:	J2000

189.431342

11.818194

OBSERVATIONAL DETAILS

Observed Region:	Integrated	Telescope Name:	Multiple
Band:	UV-Mid-IR	Instrument Name:	Multiple
Start Channel:	102.6 Å	Disperser Type:	N/A
End Channel:	349799.3 Å	Detector Type:	CCD
Channel Step:	148.0 Å	Observation Mode:	N/A
Spectral Resolution:	N/A Å	Aperture/Beam Size:	N/A
Mean Resolving Power:	N/A	Extracted Region Size:	N/A
Seeing:	N/A	Position Angle of Slit:	N/A
Airmass:	N/A	Dimension of Spectrum:	1 D
Integration Time:	N/A	Number of Pixels:	2364
Flux Units:	erg s^-1 cm^-2 Å^-1	Reference Frame:	Observed
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	Yes
Sky Subtraction:	Yes	Quality Flag(s):	0
Reference:	2014ApJS..212...18B
Notes:	N/A

DSS Image & Aperture/Beam

PA = 89 deg

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FITS	8.4kb
Author-ASCII	52.4kb
NED-ASCII	239.6kb
VOTable	223.2kb

OBJECT INFORMATION

Published Values

NED Cross-Identified Values

Name:

VCC 1727

Position (J2000):

12h37m43.52s

+11d49m05.50s

12h37m43.52s

+11d49m05.50s

Origin:	Published-Value
System:	Equatorial
Type:	Decimal-Degrees
Equinox:	J2000

189.431342

11.818194

OBSERVATIONAL DETAILS

Observed Region:	Integrated/Drift-Scan	Telescope Name:	OHP_1.93m
Band:	Optical	Instrument Name:	CARELEC
Start Channel:	3603.5 Å	Disperser Type:	Blazed-Grating
End Channel:	6912.6 Å	Detector Type:	2048x1024 EEV
Channel Step:	1.8 Å	Observation Mode:	Long-Slit
Spectral Resolution:	7.0 Å	Aperture/Beam Size:	2.5 arcsec × 300.0 arcsec
Mean Resolving Power:	751.0	Extracted Region Size:	N/A
Seeing:	2.50 arcsec	Position Angle of Slit:	89 deg
Airmass:	1.35	Dimension of Spectrum:	1 D
Integration Time:	900 sec	Number of Pixels:	1869
Flux Units:	erg s^-1 cm^-2 Å^-1	Reference Frame:	Observed
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	Yes
Sky Subtraction:	Yes	Quality Flag(s):	0
Reference:	2004A&A...417..499G
Notes:	N/A

DSS Image & Aperture/Beam

PA = 56 deg

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FITS	5.8kb
Author-ASCII	28.6kb
NED-ASCII	159.6kb
VOTable	148.8kb

OBJECT INFORMATION

Published Values

NED Cross-Identified Values

Name:

VCC 1727

Position (J2000):

12h37m43.52s

+11d49m05.50s

12h37m43.52s

+11d49m05.50s

Origin:	FITS-Header
System:	Equatorial
Type:	Sexagesimal
Equinox:	J2000

12:37:43.52

+11:49:05.5

OBSERVATIONAL DETAILS

Observed Region:	Nucleus	Telescope Name:	Cassini 1.5m
Band:	Optical	Instrument Name:	BFOSC
Start Channel:	6000.0 Å	Disperser Type:	Grism_8
End Channel:	7998.4 Å	Detector Type:	CCD
Channel Step:	1.6 Å	Observation Mode:	Long-Slit
Spectral Resolution:	6.0 Å	Aperture/Beam Size:	2.0 arcsec × 698.0 arcsec
Mean Resolving Power:	1170.0	Extracted Region Size:	N/A
Seeing:	2.50 arcsec	Position Angle of Slit:	56 deg
Airmass:	1.22	Dimension of Spectrum:	1 D
Integration Time:	600 sec	Number of Pixels:	1244
Flux Units:	erg s^-1 cm^-2 Å^-1	Reference Frame:	Rest
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	Yes
Sky Subtraction:	Yes	Quality Flag(s):	0
Reference:	2013A&A...558A..68G
Notes:	N/A

DSS Image & Aperture/Beam

PA = 0 deg

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FITS	25.5kb
Author-ASCII	218.6kb
NED-ASCII	906.1kb
VOTable	842.8kb

OBJECT INFORMATION

Published Values

NED Cross-Identified Values

Name:

NGC 4579

Position (J2000):

12h37m43.52s

+11d49m05.50s

12h37m43.52s

+11d49m05.50s

Origin:	Published-Value
System:	Equatorial
Type:	Decimal-Degrees
Equinox:	J2000

189.431342

11.818194

OBSERVATIONAL DETAILS

Observed Region:	Nucleus	Telescope Name:	Gemimi North 8.1m
Band:	Near-IR	Instrument Name:	GNIRS
Start Channel:	8212.0 Å	Disperser Type:	XD
End Channel:	25175.3 Å	Detector Type:	CCD
Channel Step:	2.4 Å	Observation Mode:	Long-Slit
Spectral Resolution:	16.0 Å	Aperture/Beam Size:	0.3 arcsec × 7.5 arcsec
Mean Resolving Power:	0.1	Extracted Region Size:	N/A
Seeing:	0.85 arcsec	Position Angle of Slit:	0 deg
Airmass:	1.45	Dimension of Spectrum:	1 D
Integration Time:	360 sec	Number of Pixels:	7076
Flux Units:	erg s^-1 cm^-2 Å^-1	Reference Frame:	Observed
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	Yes
Sky Subtraction:	Yes	Quality Flag(s):	0
Reference:	2015ApJS..217...13M
Notes:	N/A

DSS Image & Aperture/Beam

PA = 0 deg

Spectrum Preview

Launch Specview Applet
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Retrieve Data

FITS	25.3kb
Author-ASCII	215.7kb
NED-ASCII	894.0kb
VOTable	831.6kb

OBJECT INFORMATION

Published Values

NED Cross-Identified Values

Name:

NGC 4579

Position (J2000):

12h37m43.52s

+11d49m05.50s

12h37m43.52s

+11d49m05.50s

Origin:	Published-Value
System:	Equatorial
Type:	Decimal-Degrees
Equinox:	J2000

189.431342

11.818194

OBSERVATIONAL DETAILS

Observed Region:	Nucleus	Telescope Name:	Gemimi North 8.1m
Band:	Near-IR	Instrument Name:	GNIRS
Start Channel:	8453.4 Å	Disperser Type:	XD
End Channel:	25149.0 Å	Detector Type:	CCD
Channel Step:	2.4 Å	Observation Mode:	Long-Slit
Spectral Resolution:	16.0 Å	Aperture/Beam Size:	0.3 arcsec × 7.5 arcsec
Mean Resolving Power:	0.1	Extracted Region Size:	N/A
Seeing:	0.85 arcsec	Position Angle of Slit:	0 deg
Airmass:	1.19	Dimension of Spectrum:	1 D
Integration Time:	480 sec	Number of Pixels:	6981
Flux Units:	erg s^-1 cm^-2 Å^-1	Reference Frame:	Observed
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	Yes
Sky Subtraction:	Yes	Quality Flag(s):	0
Reference:	2015ApJS..217...13M
Notes:	N/A

DSS Image & Aperture/Beam

PA = N/A

Spectrum Preview

Launch Specview Applet
from STScI

Retrieve Data

FITS	N/A
Author-ASCII	2.2kb
NED-ASCII	7.7kb
VOTable	12.5kb

OBJECT INFORMATION

Published Values

NED Cross-Identified Values

Name:

NGC 4579

Position (J2000):

12h37m43.52s

+11d49m05.50s

12h37m43.52s

+11d49m05.50s

Origin:	Published-Value
System:	Equatorial
Type:	Decimal-Degrees
Equinox:	J2000

189.431342

11.818194

OBSERVATIONAL DETAILS

Observed Region:	Nucleus	Telescope Name:	IRTF_3.0m
Band:	Mid-IR	Instrument Name:	SpeX
Start Channel:	2.1 μm	Disperser Type:	Prism
End Channel:	2.5 μm	Detector Type:	Correlator
Channel Step:	3.6e-02 μm	Observation Mode:	Long-Slit
Spectral Resolution:	N/A μm	Aperture/Beam Size:	0.8 arcsec × 15.0 arcsec
Mean Resolving Power:	N/A	Extracted Region Size:	N/A
Seeing:	0.80 arcsec	Position Angle of Slit:	N/A
Airmass:	N/A	Dimension of Spectrum:	1 D
Integration Time:	N/A	Number of Pixels:	57
Flux Units:	W m^-2 um^-1	Reference Frame:	Observed
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	Yes
Sky Subtraction:	Yes	Quality Flag(s):	N/A
Reference:	2010PASJ...62.1509O
Notes:	N/A

DSS Image & Aperture/Beam

PA = N/A

Spectrum Preview

Launch Specview Applet
from STScI

Retrieve Data

FITS	N/A
Author-ASCII	663bytes
NED-ASCII	2.4kb
VOTable	4.4kb

OBJECT INFORMATION

Published Values

NED Cross-Identified Values

Name:

NGC 4579

Position (J2000):

12h37m43.52s

+11d49m05.50s

12h37m43.52s

+11d49m05.50s

Origin:	Published-Value
System:	Equatorial
Type:	Decimal-Degrees
Equinox:	J2000

189.431342

11.818194

OBSERVATIONAL DETAILS

Observed Region:	Nucleus	Telescope Name:	IRTF_3.0m
Band:	Mid-IR	Instrument Name:	SpeX
Start Channel:	3.0 μm	Disperser Type:	Prism
End Channel:	3.6 μm	Detector Type:	Correlator
Channel Step:	3.6e-02 μm	Observation Mode:	Long-Slit
Spectral Resolution:	N/A μm	Aperture/Beam Size:	0.8 arcsec × 15.0 arcsec
Mean Resolving Power:	N/A	Extracted Region Size:	N/A
Seeing:	0.80 arcsec	Position Angle of Slit:	N/A
Airmass:	N/A	Dimension of Spectrum:	1 D
Integration Time:	N/A	Number of Pixels:	16
Flux Units:	W m^-2 um^-1	Reference Frame:	Observed
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	Yes
Sky Subtraction:	Yes	Quality Flag(s):	N/A
Reference:	2010PASJ...62.1509O
Notes:	N/A

DSS Image & Aperture/Beam

PA = 19 deg

Spectrum Preview

Launch Specview Applet
from STScI

Retrieve Data

FITS	N/A
Author-ASCII	4.6kb
NED-ASCII	10.2kb
VOTable	16.5kb

OBJECT INFORMATION

Published Values

NED Cross-Identified Values

Name:

NGC 4579

Position (J2000):

12h37m43.60s

+11d49m06.00s

12h37m43.52s

+11d49m05.50s

Origin:	Fits-Header
System:	Equatorial
Type:	Decimal-degrees
Equinox:	J2000

189.431667

11.818333

OBSERVATIONAL DETAILS

Observed Region:	Nucleus (Cube Extraction)	Telescope Name:	Spitzer
Band:	Mid-IR	Instrument Name:	IRS_Short-Low2
Start Channel:	5.2 μm	Disperser Type:	Grating
End Channel:	7.6 μm	Detector Type:	Si:As
Channel Step:	3.1e-02 μm	Observation Mode:	Long-Slit
Spectral Resolution:	0.1 μm	Aperture/Beam Size:	3.6 arcsec × 57.0 arcsec
Mean Resolving Power:	82.3	Extracted Region Size:	29.60 arcsec × 51.79 arcsec
Seeing:	N/A	Position Angle of Slit:	19 deg
Airmass:	N/A	Dimension of Spectrum:	1 D
Integration Time:	14 sec	Number of Pixels:	128
Flux Units:	MJy/sr	Reference Frame:	Observed
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	N/A
Sky Subtraction:	Yes	Quality Flag(s):	N/A
Reference:	2007SINGS.5......0:
Notes:	Spectral extraction created from an IRS spectral mapping dataset.

DSS Image & Aperture/Beam

PA = 19 deg

Spectrum Preview

Launch Specview Applet
from STScI

Retrieve Data

FITS	N/A
Author-ASCII	6.8kb
NED-ASCII	15.4kb
VOTable	24.5kb

OBJECT INFORMATION

Published Values

NED Cross-Identified Values

Name:

NGC 4579

Position (J2000):

12h37m43.60s

+11d49m06.00s

12h37m43.52s

+11d49m05.50s

Origin:	Fits-Header
System:	Equatorial
Type:	Decimal-degrees
Equinox:	J2000

189.431667

11.818333

OBSERVATIONAL DETAILS

Observed Region:	Nucleus (Cube Extraction)	Telescope Name:	Spitzer
Band:	Mid-IR	Instrument Name:	IRS_Short-Low1
Start Channel:	7.5 μm	Disperser Type:	Grating
End Channel:	14.7 μm	Detector Type:	Si:As
Channel Step:	0.1 μm	Observation Mode:	Long-Slit
Spectral Resolution:	0.1 μm	Aperture/Beam Size:	3.6 arcsec × 57.0 arcsec
Mean Resolving Power:	92.0	Extracted Region Size:	29.60 arcsec × 51.79 arcsec
Seeing:	N/A	Position Angle of Slit:	19 deg
Airmass:	N/A	Dimension of Spectrum:	1 D
Integration Time:	14 sec	Number of Pixels:	128
Flux Units:	MJy/sr	Reference Frame:	Observed
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	N/A
Sky Subtraction:	Yes	Quality Flag(s):	N/A
Reference:	2007SINGS.5......0:
Notes:	Spectral extraction created from an IRS spectral mapping dataset.

DSS Image & Aperture/Beam

PA = -17 deg

Spectrum Preview

Launch Specview Applet
from STScI

Retrieve Data

FITS	N/A
Author-ASCII	48.2kb
NED-ASCII	111.6kb
VOTable	174.1kb

OBJECT INFORMATION

Published Values

NED Cross-Identified Values

Name:

NGC 4579

Position (J2000):

12h37m43.60s

+11d49m06.00s

12h37m43.52s

+11d49m05.50s

Origin:	Fits-Header
System:	Equatorial
Type:	Decimal-degrees
Equinox:	J2000

189.431667

11.818333

OBSERVATIONAL DETAILS

Observed Region:	Nucleus (Cube Extraction)	Telescope Name:	Spitzer
Band:	Mid-IR	Instrument Name:	IRS_Short-High
Start Channel:	10.0 μm	Disperser Type:	Grating
End Channel:	19.4 μm	Detector Type:	Si:As
Channel Step:	1.1e-02 μm	Observation Mode:	Long-Slit
Spectral Resolution:	2.5e-02 μm	Aperture/Beam Size:	4.7 arcsec × 11.3 arcsec
Mean Resolving Power:	598.1	Extracted Region Size:	13.56 arcsec × 24.86 arcsec
Seeing:	N/A	Position Angle of Slit:	-17 deg
Airmass:	N/A	Dimension of Spectrum:	1 D
Integration Time:	62 sec	Number of Pixels:	128
Flux Units:	MJy/sr	Reference Frame:	Observed
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	N/A
Sky Subtraction:	Yes	Quality Flag(s):	N/A
Reference:	2007SINGS.5......0:
Notes:	Spectral extraction created from an IRS spectral mapping dataset.

DSS Image & Aperture/Beam

PA = -63 deg

Spectrum Preview

Launch Specview Applet
from STScI

Retrieve Data

FITS	N/A
Author-ASCII	4.5kb
NED-ASCII	10.0kb
VOTable	16.1kb

OBJECT INFORMATION

Published Values

NED Cross-Identified Values

Name:

NGC 4579

Position (J2000):

12h37m43.60s

+11d49m06.00s

12h37m43.52s

+11d49m05.50s

Origin:	Fits-Header
System:	Equatorial
Type:	Decimal-degrees
Equinox:	J2000

189.431667

11.818333

OBSERVATIONAL DETAILS

Observed Region:	Nucleus (Cube Extraction)	Telescope Name:	Spitzer
Band:	Mid-IR	Instrument Name:	IRS_Long-Low2
Start Channel:	14.3 μm	Disperser Type:	Grating
End Channel:	21.1 μm	Detector Type:	Si:Sb
Channel Step:	0.1 μm	Observation Mode:	Long-Slit
Spectral Resolution:	0.2 μm	Aperture/Beam Size:	10.5 arcsec × 168.0 arcsec
Mean Resolving Power:	85.1	Extracted Region Size:	29.60 arcsec × 51.79 arcsec
Seeing:	N/A	Position Angle of Slit:	-63 deg
Airmass:	N/A	Dimension of Spectrum:	1 D
Integration Time:	31 sec	Number of Pixels:	128
Flux Units:	MJy/sr	Reference Frame:	Observed
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	N/A
Sky Subtraction:	Yes	Quality Flag(s):	N/A
Reference:	2007SINGS.5......0:
Notes:	Spectral extraction created from an IRS spectral mapping dataset.

DSS Image & Aperture/Beam

PA = -102 deg

Spectrum Preview

Launch Specview Applet
from STScI

Retrieve Data

FITS	N/A
Author-ASCII	48.8kb
NED-ASCII	113.0kb
VOTable	176.3kb

OBJECT INFORMATION

Published Values

NED Cross-Identified Values

Name:

NGC 4579

Position (J2000):

12h37m43.60s

+11d49m06.00s

12h37m43.52s

+11d49m05.50s

Origin:	Fits-Header
System:	Equatorial
Type:	Decimal-degrees
Equinox:	J2000

189.431667

11.818333

OBSERVATIONAL DETAILS

Observed Region:	Nucleus (Cube Extraction)	Telescope Name:	Spitzer
Band:	Mid-IR	Instrument Name:	IRS_Long-High
Start Channel:	19.1 μm	Disperser Type:	Grating
End Channel:	37.2 μm	Detector Type:	Si:Sb
Channel Step:	2.0e-02 μm	Observation Mode:	Long-Slit
Spectral Resolution:	4.7e-02 μm	Aperture/Beam Size:	11.1 arcsec × 22.3 arcsec
Mean Resolving Power:	604.2	Extracted Region Size:	13.56 arcsec × 24.86 arcsec
Seeing:	N/A	Position Angle of Slit:	-102 deg
Airmass:	N/A	Dimension of Spectrum:	1 D
Integration Time:	60 sec	Number of Pixels:	128
Flux Units:	MJy/sr	Reference Frame:	Observed
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	N/A
Sky Subtraction:	Yes	Quality Flag(s):	N/A
Reference:	2007SINGS.5......0:
Notes:	Spectral extraction created from an IRS spectral mapping dataset.

DSS Image & Aperture/Beam

PA = -63 deg

Spectrum Preview

Launch Specview Applet
from STScI

Retrieve Data

FITS	N/A
Author-ASCII	5.8kb
NED-ASCII	13.1kb
VOTable	20.9kb

OBJECT INFORMATION

Published Values

NED Cross-Identified Values

Name:

NGC 4579

Position (J2000):

12h37m43.60s

+11d49m06.00s

12h37m43.52s

+11d49m05.50s

Origin:	Fits-Header
System:	Equatorial
Type:	Decimal-degrees
Equinox:	J2000

189.431667

11.818333

OBSERVATIONAL DETAILS

Observed Region:	Nucleus (Cube Extraction)	Telescope Name:	Spitzer
Band:	Mid-IR	Instrument Name:	IRS_Long-Low1
Start Channel:	20.5 μm	Disperser Type:	Grating
End Channel:	38.3 μm	Detector Type:	Si:Sb
Channel Step:	0.2 μm	Observation Mode:	Long-Slit
Spectral Resolution:	0.3 μm	Aperture/Beam Size:	10.5 arcsec × 168.0 arcsec
Mean Resolving Power:	87.2	Extracted Region Size:	29.60 arcsec × 51.79 arcsec
Seeing:	N/A	Position Angle of Slit:	-63 deg
Airmass:	N/A	Dimension of Spectrum:	1 D
Integration Time:	31 sec	Number of Pixels:	128
Flux Units:	MJy/sr	Reference Frame:	Observed
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	N/A
Sky Subtraction:	Yes	Quality Flag(s):	N/A
Reference:	2007SINGS.5......0:
Notes:	Spectral extraction created from an IRS spectral mapping dataset.

DSS Image & Aperture/Beam

PA = 180 deg

Spectrum Preview

Launch Specview Applet
from STScI

Retrieve Data

FITS	6.6kb
Author-ASCII	10.0kb
NED-ASCII	26.9kb
VOTable	42.2kb
External Resource

OBJECT INFORMATION

Published Values

NED Cross-Identified Values

Name:

VCC 1727

Position (J2000):

12h37m43.50s

+11d49m06.00s

12h37m43.52s

+11d49m05.50s

Origin:	Published-Value
System:	Equatorial
Type:	Sexagecimal
Equinox:	J2000

12h37m43.5s

+11d49m06s

OBSERVATIONAL DETAILS

Observed Region:	Integrated	Telescope Name:	ISO
Band:	Far-IR	Instrument Name:	LWS
Start Channel:	44.4 μm	Disperser Type:	Blazed-Grating
End Channel:	177.0 μm	Detector Type:	CCD
Channel Step:	0.7 μm	Observation Mode:	Aperture
Spectral Resolution:	8.0 μm	Aperture/Beam Size:	75.0 arcsec
Mean Resolving Power:	138000.0	Extracted Region Size:	N/A
Seeing:	1.40 arcsec	Position Angle of Slit:	180 deg
Airmass:	N/A	Dimension of Spectrum:	1 D
Integration Time:	1800 sec	Number of Pixels:	1192
Flux Units:	W cm^-2 um^-1	Reference Frame:	Observed
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	Yes
Sky Subtraction:	Yes	Quality Flag(s):	0
Reference:	2008ApJS..178..280B
Notes:	LWS L02 LINE observing mode

DSS Image & Aperture/Beam

PA = 0 deg

Spectrum Preview

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Retrieve Data

FITS	25.6kb
Author-ASCII	28.6kb
NED-ASCII	46.0kb
VOTable	35.3kb

OBJECT INFORMATION

Published Values

NED Cross-Identified Values

Name:

NGC 4579

Position (J2000):

12h37m42.16s

+11d49m16.30s

12h37m43.52s

+11d49m05.50s

Origin:	FITS-Header
System:	Equatorial
Type:	Decimal-Degrees
Equinox:	J2000

189.425667

11.821194

OBSERVATIONAL DETAILS

Observed Region:	Nucleus	Telescope Name:	Herschel
Band (Line):	Far-IR([OI] 63μm)	Instrument Name:	PACS-IFU
Start Channel:	63.2 μm	Disperser Type:	Blazed-Grating
End Channel:	63.8 μm	Detector Type:	Photoconductor Arrays
Channel Step:	2.3e-03 μm	Observation Mode:	Integral-Field
Spectral Resolution:	2.0e-02 μm	Aperture/Beam Size:	9.4 arcsec × 9.4 arcsec
Mean Resolving Power:	3180.0	Extracted Region Size:	N/A
Seeing:	N/A	Position Angle of Slit:	0 deg
Airmass:	N/A	Dimension of Spectrum:	1 D
Integration Time:	N/A	Number of Pixels:	288
Flux Units:	Jy	Reference Frame:	Rest
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	Yes
Sky Subtraction:	Yes	Quality Flag(s):	0
Reference:	2016ApJS..226...19F
Notes:	N/A

DSS Image & Aperture/Beam

PA = 0 deg

Spectrum Preview

Launch Specview Applet
from STScI

Retrieve Data

FITS	14.2kb
Author-ASCII	28.6kb
NED-ASCII	46.0kb
VOTable	35.3kb

OBJECT INFORMATION

Published Values

NED Cross-Identified Values

Name:

NGC 4579

Position (J2000):

12h37m42.16s

+11d49m16.30s

12h37m43.52s

+11d49m05.50s

Origin:	FITS-Header
System:	Equatorial
Type:	Decimal-Degrees
Equinox:	J2000

189.425667

11.821194

OBSERVATIONAL DETAILS

Observed Region:	Nucleus	Telescope Name:	Herschel
Band (Line):	Far-IR([OI] 63μm)	Instrument Name:	PACS-IFU
Start Channel:	63.2 μm	Disperser Type:	Blazed-Grating
End Channel:	63.8 μm	Detector Type:	Photoconductor Arrays
Channel Step:	2.3e-03 μm	Observation Mode:	Integral-Field
Spectral Resolution:	2.0e-02 μm	Aperture/Beam Size:	47.0 arcsec × 47.0 arcsec
Mean Resolving Power:	3180.0	Extracted Region Size:	N/A
Seeing:	N/A	Position Angle of Slit:	0 deg
Airmass:	N/A	Dimension of Spectrum:	1 D
Integration Time:	N/A	Number of Pixels:	288
Flux Units:	Jy	Reference Frame:	Rest
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	Yes
Sky Subtraction:	Yes	Quality Flag(s):	0
Reference:	2016ApJS..226...19F
Notes:	N/A

DSS Image & Aperture/Beam

PA = 0 deg

Spectrum Preview

Launch Specview Applet
from STScI

Retrieve Data

FITS	25.5kb
Author-ASCII	28.6kb
NED-ASCII	46.0kb
VOTable	35.3kb

OBJECT INFORMATION

Published Values

NED Cross-Identified Values

Name:

NGC 4579

Position (J2000):

12h37m42.16s

+11d49m16.30s

12h37m43.52s

+11d49m05.50s

Origin:	FITS-Header
System:	Equatorial
Type:	Decimal-Degrees
Equinox:	J2000

189.425667

11.821194

OBSERVATIONAL DETAILS

Observed Region:	Nucleus	Telescope Name:	Herschel
Band (Line):	Far-IR([OI] 63μm)	Instrument Name:	PACS-IFU
Start Channel:	63.2 μm	Disperser Type:	Blazed-Grating
End Channel:	63.8 μm	Detector Type:	Photoconductor Arrays
Channel Step:	2.3e-03 μm	Observation Mode:	Integral-Field
Spectral Resolution:	2.0e-02 μm	Aperture/Beam Size:	28.2 arcsec × 28.2 arcsec
Mean Resolving Power:	3180.0	Extracted Region Size:	N/A
Seeing:	N/A	Position Angle of Slit:	0 deg
Airmass:	N/A	Dimension of Spectrum:	1 D
Integration Time:	N/A	Number of Pixels:	288
Flux Units:	Jy	Reference Frame:	Rest
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	Yes
Sky Subtraction:	Yes	Quality Flag(s):	0
Reference:	2016ApJS..226...19F
Notes:	N/A

DSS Image & Aperture/Beam

PA = 0 deg

Spectrum Preview

Launch Specview Applet
from STScI

Retrieve Data

FITS	25.2kb
Author-ASCII	26.7kb
NED-ASCII	42.8kb
VOTable	32.6kb

OBJECT INFORMATION

Published Values

NED Cross-Identified Values

Name:

NGC 4579

Position (J2000):

12h37m42.16s

+11d49m16.30s

12h37m43.52s

+11d49m05.50s

Origin:	FITS-Header
System:	Equatorial
Type:	Decimal-Degrees
Equinox:	J2000

189.425667

11.821194

OBSERVATIONAL DETAILS

Observed Region:	Nucleus	Telescope Name:	Herschel
Band (Line):	Far-IR([OIII] 88μm)	Instrument Name:	PACS-IFU
Start Channel:	88.2 μm	Disperser Type:	Blazed-Grating
End Channel:	89.4 μm	Detector Type:	Photoconductor Arrays
Channel Step:	4.6e-03 μm	Observation Mode:	Integral-Field
Spectral Resolution:	3.7e-02 μm	Aperture/Beam Size:	28.2 arcsec × 28.2 arcsec
Mean Resolving Power:	2400.0	Extracted Region Size:	N/A
Seeing:	N/A	Position Angle of Slit:	0 deg
Airmass:	N/A	Dimension of Spectrum:	1 D
Integration Time:	N/A	Number of Pixels:	268
Flux Units:	Jy	Reference Frame:	Rest
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	Yes
Sky Subtraction:	Yes	Quality Flag(s):	0
Reference:	2016ApJS..226...19F
Notes:	N/A

DSS Image & Aperture/Beam

PA = 0 deg

Spectrum Preview

Launch Specview Applet
from STScI

Retrieve Data

FITS	25.2kb
Author-ASCII	26.7kb
NED-ASCII	42.8kb
VOTable	32.6kb

OBJECT INFORMATION

Published Values

NED Cross-Identified Values

Name:

NGC 4579

Position (J2000):

12h37m42.16s

+11d49m16.30s

12h37m43.52s

+11d49m05.50s

Origin:	FITS-Header
System:	Equatorial
Type:	Decimal-Degrees
Equinox:	J2000

189.425667

11.821194

OBSERVATIONAL DETAILS

Observed Region:	Nucleus	Telescope Name:	Herschel
Band (Line):	Far-IR([OIII] 88μm)	Instrument Name:	PACS-IFU
Start Channel:	88.2 μm	Disperser Type:	Blazed-Grating
End Channel:	89.4 μm	Detector Type:	Photoconductor Arrays
Channel Step:	4.6e-03 μm	Observation Mode:	Integral-Field
Spectral Resolution:	3.7e-02 μm	Aperture/Beam Size:	9.4 arcsec × 9.4 arcsec
Mean Resolving Power:	2400.0	Extracted Region Size:	N/A
Seeing:	N/A	Position Angle of Slit:	0 deg
Airmass:	N/A	Dimension of Spectrum:	1 D
Integration Time:	N/A	Number of Pixels:	268
Flux Units:	Jy	Reference Frame:	Rest
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	Yes
Sky Subtraction:	Yes	Quality Flag(s):	0
Reference:	2016ApJS..226...19F
Notes:	N/A

DSS Image & Aperture/Beam

PA = 0 deg

Spectrum Preview

Launch Specview Applet
from STScI

Retrieve Data

FITS	13.8kb
Author-ASCII	26.7kb
NED-ASCII	42.8kb
VOTable	32.6kb

OBJECT INFORMATION

Published Values

NED Cross-Identified Values

Name:

NGC 4579

Position (J2000):

12h37m42.16s

+11d49m16.30s

12h37m43.52s

+11d49m05.50s

Origin:	FITS-Header
System:	Equatorial
Type:	Decimal-Degrees
Equinox:	J2000

189.425667

11.821194

OBSERVATIONAL DETAILS

Observed Region:	Nucleus	Telescope Name:	Herschel
Band (Line):	Far-IR([OIII] 88μm)	Instrument Name:	PACS-IFU
Start Channel:	88.2 μm	Disperser Type:	Blazed-Grating
End Channel:	89.4 μm	Detector Type:	Photoconductor Arrays
Channel Step:	4.6e-03 μm	Observation Mode:	Integral-Field
Spectral Resolution:	3.7e-02 μm	Aperture/Beam Size:	47.0 arcsec × 47.0 arcsec
Mean Resolving Power:	2400.0	Extracted Region Size:	N/A
Seeing:	N/A	Position Angle of Slit:	0 deg
Airmass:	N/A	Dimension of Spectrum:	1 D
Integration Time:	N/A	Number of Pixels:	268
Flux Units:	Jy	Reference Frame:	Rest
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	Yes
Sky Subtraction:	Yes	Quality Flag(s):	0
Reference:	2016ApJS..226...19F
Notes:	N/A

DSS Image & Aperture/Beam

PA = 0 deg

Spectrum Preview

Launch Specview Applet
from STScI

Retrieve Data

FITS	24.7kb
Author-ASCII	25.9kb
NED-ASCII	41.5kb
VOTable	31.9kb

OBJECT INFORMATION

Published Values

NED Cross-Identified Values

Name:

NGC 4579

Position (J2000):

12h37m43.50s

+11d49m05.00s

12h37m43.52s

+11d49m05.50s

Origin:	FITS-Header
System:	Equatorial
Type:	Decimal-Degrees
Equinox:	J2000

189.431250

11.818056

OBSERVATIONAL DETAILS

Observed Region:	Nucleus	Telescope Name:	Herschel
Band (Line):	Far-IR([NII] 122μm)	Instrument Name:	PACS-IFU
Start Channel:	120.7 μm	Disperser Type:	Blazed-Grating
End Channel:	124.5 μm	Detector Type:	Photoconductor Arrays
Channel Step:	1.5e-02 μm	Observation Mode:	Integral-Field
Spectral Resolution:	0.1 μm	Aperture/Beam Size:	28.2 arcsec × 28.2 arcsec
Mean Resolving Power:	1020.0	Extracted Region Size:	N/A
Seeing:	N/A	Position Angle of Slit:	0 deg
Airmass:	N/A	Dimension of Spectrum:	1 D
Integration Time:	N/A	Number of Pixels:	260
Flux Units:	Jy	Reference Frame:	Rest
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	Yes
Sky Subtraction:	Yes	Quality Flag(s):	0
Reference:	2016ApJS..226...19F
Notes:	N/A

DSS Image & Aperture/Beam

PA = 0 deg

Spectrum Preview

Launch Specview Applet
from STScI

Retrieve Data

FITS	13.5kb
Author-ASCII	25.9kb
NED-ASCII	41.5kb
VOTable	32.0kb

OBJECT INFORMATION

Published Values

NED Cross-Identified Values

Name:

NGC 4579

Position (J2000):

12h37m43.50s

+11d49m05.00s

12h37m43.52s

+11d49m05.50s

Origin:	FITS-Header
System:	Equatorial
Type:	Decimal-Degrees
Equinox:	J2000

189.431250

11.818056

OBSERVATIONAL DETAILS

Observed Region:	Nucleus	Telescope Name:	Herschel
Band (Line):	Far-IR([NII] 122μm)	Instrument Name:	PACS-IFU
Start Channel:	120.7 μm	Disperser Type:	Blazed-Grating
End Channel:	124.5 μm	Detector Type:	Photoconductor Arrays
Channel Step:	1.5e-02 μm	Observation Mode:	Integral-Field
Spectral Resolution:	0.1 μm	Aperture/Beam Size:	47.0 arcsec × 47.0 arcsec
Mean Resolving Power:	1020.0	Extracted Region Size:	N/A
Seeing:	N/A	Position Angle of Slit:	0 deg
Airmass:	N/A	Dimension of Spectrum:	1 D
Integration Time:	N/A	Number of Pixels:	260
Flux Units:	Jy	Reference Frame:	Rest
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	Yes
Sky Subtraction:	Yes	Quality Flag(s):	0
Reference:	2016ApJS..226...19F
Notes:	N/A

DSS Image & Aperture/Beam

PA = 0 deg

Spectrum Preview

Launch Specview Applet
from STScI

Retrieve Data

FITS	24.7kb
Author-ASCII	25.9kb
NED-ASCII	41.5kb
VOTable	31.9kb

OBJECT INFORMATION

Published Values

NED Cross-Identified Values

Name:

NGC 4579

Position (J2000):

12h37m43.50s

+11d49m05.00s

12h37m43.52s

+11d49m05.50s

Origin:	FITS-Header
System:	Equatorial
Type:	Decimal-Degrees
Equinox:	J2000

189.431250

11.818056

OBSERVATIONAL DETAILS

Observed Region:	Nucleus	Telescope Name:	Herschel
Band (Line):	Far-IR([NII] 122μm)	Instrument Name:	PACS-IFU
Start Channel:	120.7 μm	Disperser Type:	Blazed-Grating
End Channel:	124.5 μm	Detector Type:	Photoconductor Arrays
Channel Step:	1.5e-02 μm	Observation Mode:	Integral-Field
Spectral Resolution:	0.1 μm	Aperture/Beam Size:	9.4 arcsec × 9.4 arcsec
Mean Resolving Power:	1020.0	Extracted Region Size:	N/A
Seeing:	N/A	Position Angle of Slit:	0 deg
Airmass:	N/A	Dimension of Spectrum:	1 D
Integration Time:	N/A	Number of Pixels:	260
Flux Units:	Jy	Reference Frame:	Rest
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	Yes
Sky Subtraction:	Yes	Quality Flag(s):	0
Reference:	2016ApJS..226...19F
Notes:	N/A

DSS Image & Aperture/Beam

PA = 0 deg

Spectrum Preview

Launch Specview Applet
from STScI

Retrieve Data

FITS	12.5kb
Author-ASCII	20.8kb
NED-ASCII	33.3kb
VOTable	25.5kb

OBJECT INFORMATION

Published Values

NED Cross-Identified Values

Name:

NGC 4579

Position (J2000):

12h37m42.16s

+11d49m16.30s

12h37m43.52s

+11d49m05.50s

Origin:	FITS-Header
System:	Equatorial
Type:	Decimal-Degrees
Equinox:	J2000

189.425667

11.821194

OBSERVATIONAL DETAILS

Observed Region:	Nucleus	Telescope Name:	Herschel
Band (Line):	Far-IR([CII] 158μm)	Instrument Name:	PACS-IFU
Start Channel:	157.0 μm	Disperser Type:	Blazed-Grating
End Channel:	160.2 μm	Detector Type:	Photoconductor Arrays
Channel Step:	1.6e-02 μm	Observation Mode:	Integral-Field
Spectral Resolution:	0.1 μm	Aperture/Beam Size:	47.0 arcsec × 47.0 arcsec
Mean Resolving Power:	1260.0	Extracted Region Size:	N/A
Seeing:	N/A	Position Angle of Slit:	0 deg
Airmass:	N/A	Dimension of Spectrum:	1 D
Integration Time:	N/A	Number of Pixels:	208
Flux Units:	Jy	Reference Frame:	Rest
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	Yes
Sky Subtraction:	Yes	Quality Flag(s):	0
Reference:	2016ApJS..226...19F
Notes:	N/A

DSS Image & Aperture/Beam

PA = 0 deg

Spectrum Preview

Launch Specview Applet
from STScI

Retrieve Data

FITS	23.9kb
Author-ASCII	20.8kb
NED-ASCII	33.3kb
VOTable	25.6kb

OBJECT INFORMATION

Published Values

NED Cross-Identified Values

Name:

NGC 4579

Position (J2000):

12h37m42.16s

+11d49m16.30s

12h37m43.52s

+11d49m05.50s

Origin:	FITS-Header
System:	Equatorial
Type:	Decimal-Degrees
Equinox:	J2000

189.425667

11.821194

OBSERVATIONAL DETAILS

Observed Region:	Nucleus	Telescope Name:	Herschel
Band (Line):	Far-IR([CII] 158μm)	Instrument Name:	PACS-IFU
Start Channel:	157.0 μm	Disperser Type:	Blazed-Grating
End Channel:	160.2 μm	Detector Type:	Photoconductor Arrays
Channel Step:	1.6e-02 μm	Observation Mode:	Integral-Field
Spectral Resolution:	0.1 μm	Aperture/Beam Size:	9.4 arcsec × 9.4 arcsec
Mean Resolving Power:	1260.0	Extracted Region Size:	N/A
Seeing:	N/A	Position Angle of Slit:	0 deg
Airmass:	N/A	Dimension of Spectrum:	1 D
Integration Time:	N/A	Number of Pixels:	208
Flux Units:	Jy	Reference Frame:	Rest
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	Yes
Sky Subtraction:	Yes	Quality Flag(s):	0
Reference:	2016ApJS..226...19F
Notes:	N/A

DSS Image & Aperture/Beam

PA = 0 deg

Spectrum Preview

Launch Specview Applet
from STScI

Retrieve Data

FITS	23.8kb
Author-ASCII	20.8kb
NED-ASCII	33.3kb
VOTable	25.5kb

OBJECT INFORMATION

Published Values

NED Cross-Identified Values

Name:

NGC 4579

Position (J2000):

12h37m42.16s

+11d49m16.30s

12h37m43.52s

+11d49m05.50s

Origin:	FITS-Header
System:	Equatorial
Type:	Decimal-Degrees
Equinox:	J2000

189.425667

11.821194

OBSERVATIONAL DETAILS

Observed Region:	Nucleus	Telescope Name:	Herschel
Band (Line):	Far-IR([CII] 158μm)	Instrument Name:	PACS-IFU
Start Channel:	157.0 μm	Disperser Type:	Blazed-Grating
End Channel:	160.2 μm	Detector Type:	Photoconductor Arrays
Channel Step:	1.6e-02 μm	Observation Mode:	Integral-Field
Spectral Resolution:	0.1 μm	Aperture/Beam Size:	28.2 arcsec × 28.2 arcsec
Mean Resolving Power:	1260.0	Extracted Region Size:	N/A
Seeing:	N/A	Position Angle of Slit:	0 deg
Airmass:	N/A	Dimension of Spectrum:	1 D
Integration Time:	N/A	Number of Pixels:	208
Flux Units:	Jy	Reference Frame:	Rest
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	Yes
Sky Subtraction:	Yes	Quality Flag(s):	0
Reference:	2016ApJS..226...19F
Notes:	N/A

DSS Image & Aperture/Beam

PA = 150 deg

Spectrum Preview

Launch Specview Applet
from STScI

Retrieve Data

FITS	N/A
Author-ASCII	26.5kb
NED-ASCII	142.0kb
VOTable	132.4kb

OBJECT INFORMATION

Published Values

NED Cross-Identified Values

Name:

NGC 4579

Position (J2000):

12h37m43.52s

+11d49m06.49s

12h37m43.52s

+11d49m05.49s

Origin:	Published-Value
System:	Equatorial
Type:	Sexagesimal
Equinox:	B1950

12 35 12

+12 05 36

OBSERVATIONAL DETAILS

Observed Region:	Nucleus	Telescope Name:	Palomar 200in
Band:	Optical	Instrument Name:	Double Spectrograph
Start Channel:	4172.3 Å	Disperser Type:	Blazed-Grating
End Channel:	5271.3 Å	Detector Type:	CCD
Channel Step:	1.0 Å	Observation Mode:	Long-Slit
Spectral Resolution:	4.0 Å	Aperture/Beam Size:	2.0 arcsec × 128.0 arcsec
Mean Resolving Power:	1180.5	Extracted Region Size:	2.0 arcsec × 4.00 arcsec
Seeing:	1.50 arcsec	Position Angle of Slit:	150 deg
Airmass:	1.11	Dimension of Spectrum:	1 D
Integration Time:	1000 sec	Number of Pixels:	1106
Flux Units:	erg s^-1 cm^-2 Å^-1	Reference Frame:	Rest
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	N/A
Sky Subtraction:	Yes	Quality Flag(s):	N/A
Reference:	1995ApJS...98..477H
Notes:	N/A

DSS Image & Aperture/Beam

PA = 150 deg

Spectrum Preview

Launch Specview Applet
from STScI

Retrieve Data

FITS	N/A
Author-ASCII	15.5kb
NED-ASCII	83.1kb
VOTable	77.6kb

OBJECT INFORMATION

Published Values

NED Cross-Identified Values

Name:

NGC 4579

Position (J2000):

12h37m43.52s

+11d49m06.49s

12h37m43.52s

+11d49m05.49s

Origin:	Published-Value
System:	Equatorial
Type:	Sexagesimal
Equinox:	B1950

12 35 12

+12 05 36

OBSERVATIONAL DETAILS

Observed Region:	Nucleus	Telescope Name:	Palomar 200in
Band:	Optical	Instrument Name:	Double Spectrograph
Start Channel:	6206.2 Å	Disperser Type:	Blazed-Grating
End Channel:	6847.7 Å	Detector Type:	CCD
Channel Step:	1.0 Å	Observation Mode:	Long-Slit
Spectral Resolution:	2.5 Å	Aperture/Beam Size:	2.0 arcsec × 128.0 arcsec
Mean Resolving Power:	2610.8	Extracted Region Size:	2.0 arcsec × 4.00 arcsec
Seeing:	1.50 arcsec	Position Angle of Slit:	150 deg
Airmass:	1.11	Dimension of Spectrum:	1 D
Integration Time:	1000 sec	Number of Pixels:	646
Flux Units:	erg s^-1 cm^-2 Å^-1	Reference Frame:	Rest
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	N/A
Sky Subtraction:	Yes	Quality Flag(s):	N/A
Reference:	1995ApJS...98..477H
Notes:	N/A

DSS Image & Aperture/Beam

PA = N/A

Spectrum Preview

Launch Specview Applet
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Retrieve Data

FITS	N/A
Author-ASCII	107.9kb
NED-ASCII	186.5kb
VOTable	289.4kb
External Resource

OBJECT INFORMATION

Published Values

NED Cross-Identified Values

Name:

NGC4579

NGC 4579

Position (J2000):

12h37m44.12s

+11d49m10.50s

12h37m43.60s

+11d49m05.10s

Origin:	Published-Value
System:	Equatorial
Type:	Sexagesimal
Equinox:	B1950

12 35 12.6

12 05 40

OBSERVATIONAL DETAILS

Observed Region:	Nucleus	Telescope Name:	IUE
Band:	UV	Instrument Name:	SWP + LWP and/or LWR
Start Channel:	1100.2 Å	Disperser Type:	Cross-Disperser-Grating
End Channel:	3299.2 Å	Detector Type:	SEC vidicon cam w/UV-converter
Channel Step:	1.5 Å	Observation Mode:	Long-Slit
Spectral Resolution:	6.5 Å	Aperture/Beam Size:	10.0 arcsec × 20.0 arcsec
Mean Resolving Power:	338.4	Extracted Region Size:	N/A
Seeing:	N/A	Position Angle of Slit:	N/A
Airmass:	N/A	Dimension of Spectrum:	1 D
Integration Time:	64917 sec	Number of Pixels:	1454
Flux Units:	erg s^-1 cm^-2 Å^-1	Reference Frame:	Observed
Flux Calibration:	Yes	Sensitivity Level:	N/A
Absolute Calibration:	Yes	Baseline Subtraction:	N/A
Sky Subtraction:	N/A	Quality Flag(s):	N/A
Reference:	1993ApJS...86....5K
Notes:	Co-add of 2 short wavelength & 3 long wavelength IUE spectra

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DSS Image & Aperture/Beam

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DSS Image & Aperture/Beam

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OBJECT INFORMATION

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DSS Image & Aperture/Beam

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OBJECT INFORMATION

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DSS Image & Aperture/Beam

Spectrum Preview

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OBJECT INFORMATION

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DSS Image & Aperture/Beam

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OBJECT INFORMATION

OBSERVATIONAL DETAILS

DSS Image & Aperture/Beam

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OBJECT INFORMATION

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DSS Image & Aperture/Beam

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OBJECT INFORMATION

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DSS Image & Aperture/Beam

Spectrum Preview

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OBJECT INFORMATION

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DSS Image & Aperture/Beam

Spectrum Preview

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OBJECT INFORMATION

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DSS Image & Aperture/Beam

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OBJECT INFORMATION

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DSS Image & Aperture/Beam

Spectrum Preview

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OBJECT INFORMATION

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DSS Image & Aperture/Beam

Spectrum Preview

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OBJECT INFORMATION

OBSERVATIONAL DETAILS

DSS Image & Aperture/Beam

Spectrum Preview

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OBJECT INFORMATION

OBSERVATIONAL DETAILS

DSS Image & Aperture/Beam

Spectrum Preview

Retrieve Data

OBJECT INFORMATION

OBSERVATIONAL DETAILS

DSS Image & Aperture/Beam

Spectrum Preview

Retrieve Data

OBJECT INFORMATION