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2000MNRAS.319..977W - Mon. Not. R. Astron. Soc., 319, 977-990 (2000/December-3)
0422-476: a shell galaxy with azimuthally distributed shells.
WILKINSON A., PRIEUR J.-L., LEMOINE R., CARTER D., MALIN D. and SPARKS W.B.
Abstract (from CDS):
According to some recent models (e.g. that of Thomson and Wright in 1990), the shells in such a galaxy could be density waves induced in a thick disc population of dynamically cold stars by a weak interaction with another galaxy. In 0422-476 there is no evidence of either a conventional exponential disc or a thick disc. Although it is not possible to rule out the weak interaction model, the observations continue to favour the merger model (e.g. that of Quinn from 1984).
Abstract Copyright: 2000, Royal Astronomical Society
Journal keyword(s): galaxies: evolution - galaxies: individual: 0422-476 - galaxies: interactions - galaxies: photometry
Simbad objects: 10
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