2008MNRAS.386L..38G


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.05CET16:44:11

2008MNRAS.386L..38G - Mon. Not. R. Astron. Soc., 386, L38-L42 (2008/May-1)

UGC 7069: the largest ring galaxy.

GHOSH K.K. and MAPELLI M.

Abstract (from CDS):

We find that UGC 7069 is the largest ring galaxy known to date. In this Letter, we present a multiwavelength study of this galaxy (combining radio, Two-Micron All-Sky Survey, optical and ultraviolet data). The ring of UGC 7069, whose diameter measures ∼115 kpc, is also warped at its edges. The nucleus appears double-peaked and hosts a possible LINER. The ultraviolet data indicate a strong blue colour and suggest that UGC 7069 is a starburst galaxy. We also present N-body simulation results, which indicate that galaxy collisions can produce such huge rings. Large inclination angles between the target and the intruder galaxy may account for the formation of warped rings. Multiwavelength observations are highly essential to constrain our simulation results, which will address the formation and evolution of such a rare galaxy.

Abstract Copyright: ©2008 The Authors. Journal compilation © 2008 RAS

Journal keyword(s): methods: {em N}-body simulations - galaxies: individual: UGC 7069 - galaxies: interactions - galaxies: nuclei - galaxies: peculiar - galaxies: starburst

Simbad objects: 9

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Number of rows : 9

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NAME Cartwheel G 00 37 41.107 -33 42 58.79   19.26   18.52   ~ 256 1
2 LEDA 2211910 G 12 04 32.2361996060 +43 03 07.209141675           ~ 3 0
3 LEDA 2213087 G 12 04 33.95 +43 06 11.1           ~ 2 0
4 UGC 7069 EmG 12 04 57.905 +43 08 59.03   15.7       ~ 23 0
5 2MASX J12051554+4310079 LIN 12 05 15.565 +43 10 08.48   15.2       ~ 16 0
6 SDSS J120517.29+430534.8 G 12 05 17.2856317451 +43 05 34.820153862           ~ 1 0
7 2MASX J12052332+4311079 G 12 05 23.3085344661 +43 11 07.550622756           ~ 2 0
8 2MASX J12365934+1419494 LSB 12 36 59.3469733716 +14 19 49.158501218   17.80       ~ 178 0
9 NGC 5291 AGN 13 47 24.459 -30 24 25.03   15.18 14.00 13.57 12.7 ~ 142 1

    Equat.    Gal    SGal    Ecl

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