NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-07-22 T21:52:56 PDT
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Notes for object SCG 0031-2143

2 note(s) found in NED.


1. 1996A&AS..117...39A
Re:HCG 004
Hickson 4 - Accordant triplet (a, c and d). In spite of the rather large
redshift difference, object b might also be a member. Object e has a far too
high redshift. At FIR wavelengths a is clearly detected in all bands; d is
marginally detected at 60 microns.

2. 1995ApJ...443..514P
Re:HCG 004
HCG 4.-A bright power-law source in galaxy a of this group overwhelms
any possible signal from other sources in the group. This source has a
power-law index {alpha} = 2.08 +/- 0.04 (where the emission depends on
the energy as E^-{alpha}^ and a luminosity in the PSPC passband of 1.1 x
10^43^ ergs s^-1^. Galaxy a was found to contain a possible active
galactic nucleus (AGN) in the Montreal Blue Galaxy Survey (Coziol et al.
1993), and this observation appears to confirm the presence of an active
nucleus in that galaxy.


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