NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-26 T14:11:33 PDT
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Notes for object ABELL 1576

1 note(s) found in NED.


1. 2002ApJS..139..313D
Re:ABELL 1576
5.16. A1576 There are about half a dozen faint blue "arclets"
surrounding the cluster core of A1576. The central brightest cluster
member has three bright nuclei embedded in a common envelope,
indicative of a merger in an advanced stage. The radial shear
profile is very poorly fit by an SIS-type model, also indicating
significant dynamical activity in this cluster. The light, mass,
and galaxy density distributions (Fig. 15) indicate the presence
of multiple peaks in this cluster, although the position of
the peaks differs somewhat in the three maps. The strongest peak
in the galaxy light distribution is offset by about 3' from
the peak in the galaxy number density distribution. The
highest mass peak coincides most closely with the light peak but
shows an extension toward the peak in the number density
distribution. Several additional subpeaks in the field are
visible in all three maps, with good positional agreement. A
two-dimensional cross-correlation of the mass and light
distributions in this field gives a zero-lag significance of
7 {sigma}, but the mass appears to be significantly more concentrated
than the light (H. Dahle et al. 2002c, in preparation).


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