NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-16 T07:44:53 PDT
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Redshift data point(s) for object NGC 2947

5 redshift data point(s) found in NED.


No.Frequency Targeted km/s +/- unc z +/- uncReference Code
0   2805   6   0.009356   0.000020   2003A&A...412...57P
1 21-cm 2804   8   0.009353   0.000028   2006HIPAS.C...0000:
2 21-cm 2814   13   0.009386   0.000042   2005ApJS..160..149S
3 Optical 2791   45   0.009310   0.000150   20096dF...C...0000J
4 21-cm HI line 2815     0.009390     1991RC3.9.C...0000d
5 2810     0.009373     2015MNRAS.447.1531C

Detailed information for each entry

No. 1
Name in publication  : HIPASS J0936-12               
Coordinates          : 093604.0                 -122656          J2000
Features targeted    : 21-cm                         
Velocity or redshift :  2803.9         km/s                     z=   0.009353
Uncertainty          : +/-8.5                                   +/-  0.000028
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 : AGC 490104 Coordinates : 093607.0 -122627 J2000 Features targeted : 21-cm Velocity or redshift : 2814 km/s z= 0.009386 Uncertainty : +/-12 +/- 0.000042 Unc. Significance : estimated error Reference Code : 2005ApJS..160..149S 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 reprocessed raw data NED Comment : 'Quality' Good. Nancay data.


No. 3 Name in publication : 6dF J0936058-122612 Coordinates : 093605.83 -122611.9 J2000 Features targeted : Optical Velocity or redshift : 2791 km/s z= 0.009310 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. 4 Name in publication : MCG -02-25-004 Coordinates : 093340.8 -121246 B1950 Features targeted : 21-cm HI line Velocity or redshift : 2815 km/s z= 0.009390 Uncertainty : No uncertainty given Unc. Significance : no unc. reported 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. 5 Name in publication : Coordinates : Features targeted : Velocity or redshift : 2810 km/s z= 0.009373 Uncertainty : No uncertainty given Unc. Significance : no unc. reported Reference Code : 2015MNRAS.447.1531C Measurement Mode : Reference Frame : Heliocentric velocity or redshift Qualifiers : Uncertain origin NED Comment :



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