2008AJ....135..130D

Query : 2008AJ....135..130D

2008AJ....135..130D - Astron. J., 135, 130-155 (2008/January-0)

Seyfert's Sextet: a slowly dissolving Stephan's Quintet?

DURBALA A., DEL OLMO A., YUN M.S., ROSADO M., SULENTIC J.W., PLANA H., IOVINO A., PEREA J., VERDES-MONTENEGRO L. and FUENTES-CARRERA I.

Abstract (from CDS):

We present a multiwavelength study of the highly evolved compact galaxy group known as Seyfert's Sextet (HCG79: SS). We interpret SS as a 2-3 Gyr more evolved analog of Stephan's Quintet (HCG92: SQ). We postulate that SS formed by sequential acquisition of 4-5 primarily late-type field galaxies. Four of the five galaxies show an early-type morphology which is likely the result of secular evolution driven by gas stripping. Stellar stripping has produced a massive/luminous halo and embedded galaxies that are overluminous for their size. These are interpreted as remnant bulges of the accreted spirals. H79d could be interpreted as the most recent intruder, being the only galaxy with an intact interstellar medium (ISM) and uncertain evidence for tidal perturbation. In addition to stripping activity we find evidence for past accretion events. H79b (NGC6027) shows a strong counter-rotating emission line component interpreted as an accreted dwarf spiral. H79a shows evidence for an infalling component of gas representing feedback or possible cross-fueling by H79d. The biggest challenge to this scenario involves the low gas fraction in the group. If SS formed from normal field spirals then much of the gas is missing. Finally, despite its advanced stage of evolution, we find no evidence for major mergers and infer that SS (and SQ) are telling us that such groups coalesce via slow dissolution.

Abstract Copyright: ∼

Journal keyword(s): galaxies: active - galaxies: elliptical and lenticular, cD - galaxies: interactions - galaxies: spiral

Simbad objects: 43

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Number of rows : 43
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 MCG+04-03-008 GiG 00 49 34.169 +23 34 41.61   15.50   13.23   ~ 45 0
2 HCG 8 CGG 00 49 35.450 +23 34 54.58   14.7       ~ 38 0
3 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 11160 1
4 SA 92- reg 00 55 03.80 +00 47 13.2           ~ 101 0
5 HCG 16 CGG 02 09 40.82 -10 11 02.0           ~ 169 0
6 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17450 0
7 NAME Virgo Cluster ClG 12 26 32.1 +12 43 24           ~ 6652 0
8 NGC 4654 GiP 12 43 56.638 +13 07 34.86   11.8       ~ 568 1
9 HZ 44 HS* 13 23 35.2629445608 +36 07 59.544140304 10.186 11.42 11.65 12.00 11.995 sdBN0VIIHe28 419 0
10 BD+26 2606 SB* 14 49 02.3593347728 +25 42 09.192358874 9.92 10.16 9.73 9.27 8.95 A5 372 0
11 BD+33 2642 pA* 15 51 59.8854348048 +32 56 54.329485272 9.806 10.61 10.73 10.884 10.961 O7p 430 0
12 NGC 6008 LIN 15 52 56.0231384832 +21 06 01.850024160   14.2       ~ 38 0
13 MCG+04-37-054 GiG 15 53 08.2842490080 +21 04 28.725943548   15.0       ~ 18 0
14 MCG+04-38-001 Sy2 15 56 33.7014547104 +21 17 20.623428816   14.7       ~ 19 0
15 NGC 6020 GiG 15 57 08.1313437552 +22 24 16.476776928   14.5       ~ 71 0
16 MCG+04-38-005 GiG 15 59 10.8358913184 +20 45 43.819011072   13.4   14.21   ~ 69 0
17 MCG+04-38-006 GiG 15 59 11.156 +20 45 17.02   13.4   13.46   ~ 76 0
18 HCG 79 CGG 15 59 11.605 +20 45 24.66           ~ 114 0
19 MCG+04-38-007 GiG 15 59 11.875 +20 44 49.71   16.89   16.74   ~ 56 0
20 NGC 6027 GiG 15 59 12.542 +20 45 48.07   13.4   13.07   ~ 109 2
21 MCG+04-38-009 GiG 15 59 12.9162474936 +20 45 35.731030752   16.61   15.31   ~ 26 0
22 MCG+04-38-010 GiG 15 59 14.55504 +20 45 57.8520   16.5       ~ 10 0
23 HCG 79f G 15 59 14.90 +20 45 57.3           ~ 3 0
24 UGC 10117 AG? 15 59 23.9305932504 +21 36 12.831565104   15.4       ~ 24 0
25 LGG 403 GrG 15 59 30 +20 32.5           ~ 4 0
26 UGC 10127 GiG 16 00 23.9814154416 +20 50 56.672199600   14.2       ~ 33 0
27 Z 108-53 GiG 16 01 07.0488010296 +19 26 54.820585644   15.0       ~ 20 0
28 NGC 6028 LIN 16 01 28.9545989160 +19 21 35.556412824   14.8       ~ 53 0
29 MCG+04-38-015 GiG 16 02 30.4745673960 +21 07 14.591555760   14.8       ~ 21 0
30 NGC 6032 GiG 16 03 01.1201862024 +20 57 21.239605764   15.0       ~ 66 0
31 Mrk 296 GiG 16 03 26.525 +19 09 44.39   15.5       ~ 50 0
32 NGC 6052 AG? 16 05 12.8715178104 +20 32 32.607297132 13.01 13.44 13.00     ~ 351 2
33 ACO 2151 ClG 16 05 15.0 +17 44 55           ~ 578 3
34 NGC 6060 GiG 16 05 51.9982696320 +21 29 05.766126036   14.3       ~ 103 0
35 Z 137-37 AG? 16 05 59.4968080848 +21 21 37.559169000   15.4       ~ 7 0
36 UGC 10197 GiP 16 06 04.439 +20 48 05.28   15.2       ~ 20 1
37 UGC 10198 GiP 16 06 05.936 +20 47 03.28   15.2       ~ 12 1
38 SA 110- reg 18 45 +00.6           ~ 100 0
39 NAME Stephan's Quintet CGG 22 35 57.5 +33 57 36           ~ 439 1
40 NGC 7318B GiP 22 35 58.3903354632 +33 57 57.827617524   14.06   12.47   ~ 138 0
41 NGC 7319 Sy2 22 36 03.602 +33 58 33.18   14.57 13.53 12.65   ~ 293 0
42 NGC 7320C AG? 22 36 20.3659207800 +33 59 06.140904000   17       ~ 49 0
43 NGC 7331 LIN 22 37 04.0506038088 +34 24 56.800076508 10.65 10.35 9.48     ~ 1228 2

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