NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2022-01-26 T22:22:39 PST
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Diameter data point(s) for object [HB89] 0235+164

Diameter Data --- Published and Homogenized (arcsec) Units

  Published UnitsHomogenized Units
No.Observed Passband
REFCODE
Major Axis
(2a)
Major Axis UnitsMinor Axis
(2b)
Minor Axis UnitsAxis Ratio (b/a)Major Axis Unc.Ellipticity
(1 - b/a)
Eccentricity
[(a/b)2-1]/
[(a/b)2+1]
Position Angle
(deg)
[published]
Reference LevelFrequency (Hz)Major Axis
(2a)
(arcsec)
Major Axis Unc.Axis Ratio (b/a)Ellipticity
(1 - b/a)
Eccentricity
[(a/b)2-1]/
[(a/b)2+1]
cos-1(b/a)
(deg)
Position Angle
(deg)
[J2000]
1 0.5-7 keV Chandra
2020CSC...C2..0000:
0.15975054 arcsec 0.15975054 arcsec ... 0.04778610 ... ... 0.0
[J2000]
extent deconvolved with PSF 5.56E+17 0.16 0.05 0.16 0.84 0.95 81 0
[J2000]
2 0.2-0.5 keV Chandra
2020CSC...C2..0000:
0.08439590 arcsec 0.08439590 arcsec ... 0.16141971 ... ... 0.0
[J2000]
extent deconvolved with PSF 9.67E+16 0.08 0.16 0.08 0.92 0.99 85 0
[J2000]
3 0.5-1.2 keV Chandra
2020CSC...C2..0000:
0.14205618 arcsec 0.14205618 arcsec ... 0.08916345 ... ... 0.0
[J2000]
extent deconvolved with PSF 2.22E+17 0.14 0.09 0.14 0.86 0.96 82 0
[J2000]
4 1.2-2 keV Chandra
2020CSC...C2..0000:
0.17435263 arcsec 0.17435263 arcsec ... 0.07284145 ... ... 0.0
[J2000]
extent deconvolved with PSF 3.77E+17 0.17 0.07 0.17 0.83 0.94 80 0
[J2000]
5 2-7 keV Chandra
2020CSC...C2..0000:
0.25846225 arcsec 0.25846225 arcsec ... 0.21032115 ... ... 0.0
[J2000]
extent deconvolved with PSF 9.19E+17 0.26 0.21 0.26 0.74 0.87 75 0
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 2020CSC...C2..0000:
Published Object Name         :                               
Frequency Targeted            : 0.5-7 keV Chandra             
Major Axis (2a)               : 0.15975054 arcsec                   2a = 0.16 arcsec
Uncertainty                   : 0.04778610  arcsec                  0.05 arcsec              
Minor Axis (2b)               : 2b = 0.15975054 arcsec              2b = 0.16 arcsec 
Uncertainty                   : 0.04778610                                  0.05
Axis Ratio                    : ...                                 b/a = 0.16
Uncertainty                   : ...                                 0.05
Ellipticity                   : ...                                 1 - b/a = 0.84
Uncertainty                   : ...                                 0.05
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.95
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 81 deg
Position Angle [Equinox]      : 0.0    deg [J2000]                  0 deg [J2000]
Uncertainty                   : ...                                 ...
Significance                  : 68% confidence
Diameter Reference Level      : extent deconvolved with PSF   
Frequency                     : 2.3          keV                    5.56E+17 Hz
Frequency Mode                : Broad-band detector (e.g. photographic plate)

Measurement Mode               
    Detector Type             : Maps (e.g., 2MASS, VLA, Sloan)
    Fitting Technique         : Deconvolved from beam (Gaussian deconvolution)
    Measured Quantity         : Unspecified in paper
Coordinates Targeted          :
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 2020CSC...C2..0000: Published Object Name : Frequency Targeted : 0.2-0.5 keV Chandra Major Axis (2a) : 0.08439590 arcsec 2a = 0.08 arcsec Uncertainty : 0.16141971 arcsec 0.16 arcsec Minor Axis (2b) : 2b = 0.08439590 arcsec 2b = 0.08 arcsec Uncertainty : 0.16141971 0.16 Axis Ratio : ... b/a = 0.08 Uncertainty : ... 0.16 Ellipticity : ... 1 - b/a = 0.92 Uncertainty : ... 0.16 Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.99 Uncertainty : ... ... Cos-1(b/a) : ... 85 deg Position Angle [Equinox] : 0.0 deg [J2000] 0 deg [J2000] Uncertainty : ... ... Significance : 68% confidence Diameter Reference Level : extent deconvolved with PSF Frequency : 0.4 keV 9.67E+16 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Maps (e.g., 2MASS, VLA, Sloan) Fitting Technique : Deconvolved from beam (Gaussian deconvolution) Measured Quantity : Unspecified in paper Coordinates Targeted : Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 2020CSC...C2..0000: Published Object Name : Frequency Targeted : 0.5-1.2 keV Chandra Major Axis (2a) : 0.14205618 arcsec 2a = 0.14 arcsec Uncertainty : 0.08916345 arcsec 0.09 arcsec Minor Axis (2b) : 2b = 0.14205618 arcsec 2b = 0.14 arcsec Uncertainty : 0.08916345 0.09 Axis Ratio : ... b/a = 0.14 Uncertainty : ... 0.09 Ellipticity : ... 1 - b/a = 0.86 Uncertainty : ... 0.09 Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.96 Uncertainty : ... ... Cos-1(b/a) : ... 82 deg Position Angle [Equinox] : 0.0 deg [J2000] 0 deg [J2000] Uncertainty : ... ... Significance : 68% confidence Diameter Reference Level : extent deconvolved with PSF Frequency : 0.92 keV 2.22E+17 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Maps (e.g., 2MASS, VLA, Sloan) Fitting Technique : Deconvolved from beam (Gaussian deconvolution) Measured Quantity : Unspecified in paper Coordinates Targeted : Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 2020CSC...C2..0000: Published Object Name : Frequency Targeted : 1.2-2 keV Chandra Major Axis (2a) : 0.17435263 arcsec 2a = 0.17 arcsec Uncertainty : 0.07284145 arcsec 0.07 arcsec Minor Axis (2b) : 2b = 0.17435263 arcsec 2b = 0.17 arcsec Uncertainty : 0.07284145 0.07 Axis Ratio : ... b/a = 0.17 Uncertainty : ... 0.07 Ellipticity : ... 1 - b/a = 0.83 Uncertainty : ... 0.07 Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.94 Uncertainty : ... ... Cos-1(b/a) : ... 80 deg Position Angle [Equinox] : 0.0 deg [J2000] 0 deg [J2000] Uncertainty : ... ... Significance : 68% confidence Diameter Reference Level : extent deconvolved with PSF Frequency : 1.56 keV 3.77E+17 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Maps (e.g., 2MASS, VLA, Sloan) Fitting Technique : Deconvolved from beam (Gaussian deconvolution) Measured Quantity : Unspecified in paper Coordinates Targeted : Qualifiers : From new, raw data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 2020CSC...C2..0000: Published Object Name : Frequency Targeted : 2-7 keV Chandra Major Axis (2a) : 0.25846225 arcsec 2a = 0.26 arcsec Uncertainty : 0.21032115 arcsec 0.21 arcsec Minor Axis (2b) : 2b = 0.25846225 arcsec 2b = 0.26 arcsec Uncertainty : 0.21032115 0.21 Axis Ratio : ... b/a = 0.26 Uncertainty : ... 0.21 Ellipticity : ... 1 - b/a = 0.74 Uncertainty : ... 0.21 Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.87 Uncertainty : ... ... Cos-1(b/a) : ... 75 deg Position Angle [Equinox] : 0.0 deg [J2000] 0 deg [J2000] Uncertainty : ... ... Significance : 68% confidence Diameter Reference Level : extent deconvolved with PSF Frequency : 3.8 keV 9.19E+17 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Maps (e.g., 2MASS, VLA, Sloan) Fitting Technique : Deconvolved from beam (Gaussian deconvolution) Measured Quantity : Unspecified in paper Coordinates Targeted : Qualifiers : From new, raw data NED Comment :

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