SIMBAD references

2002A&A...383..390R - Astronomy and Astrophysics, volume 383, 390-397 (2002/2-4)

ESO 603-G21: A strange polar-ring galaxy.


Abstract (from CDS):

We present the results of B, V, R surface photometry of ESO 603-G21 - a galaxy with a possible polar ring. The morphological and photometric features of this galaxy are discussed. The central round object of the galaxy is rather red and presents a nearly exponential surface brightness distribution. This central structure is surrounded by a blue warped ring or disk. The totality of the observed characteristics (optical and NIR colors, strong color gradients, HI and H2 content, FIR luminosity and star-formation rate, rotation-curve shape, global mass-to-luminosity ratio, the agreement with the Tully-Fisher relation, etc.) shows that ESO 603-G21 is similar to late-type spiral galaxies. We suppose that morphological peculiarities and the possible existence of two large-scale kinematically-decoupled subsystems in ESO 603-G21 can be explained as being a result of dissipative merging of two spiral galaxies or as a consequence of a companion accretion onto a pre-existing spiral host.

Abstract Copyright:

Journal keyword(s): galaxies: individual: ESO 603-G21 - galaxies: kinematics and dynamics - galaxies: photometry - galaxies: formation - galaxies: structure

Nomenclature: Fig.2: [RFD2002] Anon JHHMMSS.s+DDMMSS.s N=1.

Simbad objects: 7

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