NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-19 T01:23:05 PDT
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Redshift data point(s) for object NGC 2993

7 redshift data point(s) found in NED.


No.Frequency Targeted km/s +/- unc z +/- uncReference Code
0   2430   7   0.008106   0.000022   2006HIPAS.C...0000:
1 21-cm 2430   7   0.008106   0.000022   2006HIPAS.C...0000:
2 21-cm HI line 2420   9   0.008072   0.000030   1991RC3.9.C...0000d
3 Optical 2343   44   0.007815   0.000147   1992CORV..C...0000F
4 Optical 2346   45   0.007825   0.000150   20096dF...C...0000J
5 Optical lines 2227   51   0.007428   0.000170   1991RC3.9.C...0000d
6 21-cm 2317     0.007729     1998A&AS..130..333T
7 Optical 2050     0.006838     1992CORV..C...0000F

Detailed information for each entry

No. 1
Name in publication  : HIPASS J0945-14a              
Coordinates          : 094543.2                 -142141          J2000
Features targeted    : 21-cm                         
Velocity or redshift :  2430.0         km/s                     z=   0.008106
Uncertainty          : +/-6.6                                   +/-  0.000022
Unc. Significance    : estimated error
Reference Code       : 2006HIPAS.C...0000:

Measurement Mode     :
    Spectral range   : Radio
    Spectrograph     : Heterodyne receiver(e.g., 21-cm)
    Features         : 1 Emission lines
    Technique        : Mid-point of line profile at 50% lvel
    Spatial mode     : Redshift is systemic

Reference Frame      : Heliocentric velocity or redshift
Qualifiers           : From new, raw data

NED Comment          :                                         



No. 2 Name in publication : MCG -02-25-015 Coordinates : 094324.1 -140815 B1950 Features targeted : 21-cm HI line Velocity or redshift : 2420 km/s z= 0.008072 Uncertainty : +/-9 +/- 0.000030 Unc. Significance : rms uncertainty Reference Code : 1991RC3.9.C...0000d Measurement Mode : Spectral range : Radio Reference Frame : Heliocentric velocity or redshift Qualifiers : Homogenized from new and previously published data NED Comment :


No. 3 Name in publication : NGC 2993 Coordinates : 094324.1 -140815. B1950 Features targeted : Optical Velocity or redshift : 2343 km/s z= 0.007815 Uncertainty : +/-44 +/- 0.000147 Unc. Significance : uncertainty Reference Code : 1992CORV..C...0000F Measurement Mode : Spectral range : Optical Reference Frame : Heliocentric velocity or redshift Qualifiers : From reprocessed raw data NED Comment : From 1978AJ.....83..904S


No. 4 Name in publication : 6dF J0945482-142206 Coordinates : 094548.33 -142205.9 J2000 Features targeted : Optical Velocity or redshift : 2346 km/s z= 0.007825 Uncertainty : +/-45 +/- 0.000150 Unc. Significance : uncertainty Reference Code : 20096dF...C...0000J Measurement Mode : Spectral range : Optical Spectrograph : Fiber-optic feed Features : Both absorption and emission lines Technique : Cross-correlation fit to template spectrum Spatial mode : Redshift is systemic Reference Frame : Heliocentric velocity or redshift Qualifiers : From new, raw data NED Comment :


No. 5 Name in publication : MCG -02-25-015 Coordinates : 094324.1 -140815 B1950 Features targeted : Optical lines Velocity or redshift : 2227 km/s z= 0.007428 Uncertainty : +/-51 +/- 0.000170 Unc. Significance : rms uncertainty Reference Code : 1991RC3.9.C...0000d Measurement Mode : Spectral range : Optical Reference Frame : Heliocentric velocity or redshift Qualifiers : Homogenized from new and previously published data NED Comment :


No. 6 Name in publication : PGC 027991 Coordinates : 094324. -140815. B1950 Features targeted : 21-cm Velocity or redshift : 2317 km/s z= 0.007729 Uncertainty : No uncertainty given Unc. Significance : no unc. reported Reference Code : 1998A&AS..130..333T Measurement Mode : Spectral range : Radio Spectrograph : Heterodyne receiver(e.g., 21-cm) Features : 1 Emission lines Technique : Mid-point of line profile at 20% lvel Spatial mode : Redshift is systemic Reference Frame : Heliocentric velocity or redshift Qualifiers : From new, raw data NED Comment : Confused profile


No. 7 Name in publication : NGC 2993 Coordinates : 094324.1 -140815. B1950 Features targeted : Optical Velocity or redshift : 2050 km/s z= 0.006838 Uncertainty : No uncertainty given Unc. Significance : no unc. reported Reference Code : 1992CORV..C...0000F Measurement Mode : Spectral range : Optical Reference Frame : Heliocentric velocity or redshift Qualifiers : From reprocessed raw data NED Comment : From 1972ApJ...178L..43B



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