2001ApJ...550..204I

Query : 2001ApJ...550..204I

2001ApJ...550..204I - Astrophys. J., 550, 204-211 (2001/March-3)

Star-forming objects in the tidal tails of compact groups.

IGLESIAS-PARAMO J. and VILCHEZ J.M.

Abstract (from CDS):

A search for star-forming objects belonging to tidal tails has been carried out in a sample of deep Hα images of 16 compact groups of galaxies. A total of 36 objects with Hα luminosities greater than 1038 ergs.s–1 has been detected in five groups. The fraction of the total Hα luminosity of their respective parent galaxies shown by the tidal objects is always below 5% except for the tidal features of Hickson compact group 95, whose Hα luminosity amounts to 65% of the total luminosity. Out of these 36 objects, nine star-forming tidal dwarf galaxy candidates finally have been identified on the basis of their projected distances to the nuclei of the parent galaxies and their total Hα luminosities. Overall, the observed properties of the candidates resemble those previously reported for the so-called tidal dwarf galaxies.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Evolution - Galaxies: Interactions - Galaxies: Starburst - ISM: H II Regions

Nomenclature: Table 1: [IV2001] TD 31a (Nos 31a-31i), [IV2001] TD 44a (Nos 44a-44h>, [IV2001] TD 92a (Nos 92a-92g>, [IV2001] TD 93a (Nos 93a-93h>, [IV2001] TD 95a (Nos 95a-95d).

Simbad objects: 23

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Number of rows : 23
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 HCG 31 CGG 05 01 37 -04 15.4           ~ 132 0
2 LEDA 16573 G 05 01 37.832 -04 15 28.48   13.44   12.76   ~ 74 1
3 NGC 1741 EmG 05 01 38.3 -04 15 25   13.7   13.02 13.6 ~ 273 0
4 NGC 3185 Sy2 10 17 38.5650471192 +21 41 17.573817228   12.99 12.17 12.37   ~ 308 1
5 NGC 3187 GiP 10 17 47.8703571264 +21 52 23.984065272 13.71 13.91 13.44 14.06   ~ 166 1
6 HCG 44 CGG 10 18 00 +21 48.7           ~ 86 0
7 NGC 3189 GiP 10 18 05.643 +21 49 54.98 12.60 12.12 11.15 11.14   ~ 422 2
8 NGC 4038 EmG 12 01 53.002 -18 52 03.32   10.91   9.74 11.0 ~ 1364 1
9 NAME Antennae IG 12 01 53.170 -18 52 37.92           ~ 1749 0
10 NGC 4039 GiP 12 01 53.51 -18 53 10.3   11.08   9.77   ~ 1173 1
11 NGC 5291 Sy2 13 47 24.5000261808 -30 24 25.449445800   15.18 14.00 13.57 12.7 ~ 161 1
12 NAME Super Antennae Sy2 19 31 21.4272801984 -72 39 21.442847832   17.39 16.37 14.65   ~ 318 3
13 NGC 7318A GiP 22 35 56.70407 +33 57 55.7710   14.4   13.13   ~ 140 0
14 NAME Stephan's Quintet CGG 22 35 57.5 +33 57 36           ~ 480 1
15 NGC 7318B GiP 22 35 58.3903354632 +33 57 57.827617524   14.06   12.47   ~ 144 0
16 NGC 7320 GiG 22 36 03.4059680280 +33 56 53.623460220 13.12 13.23 12.63 12.38   ~ 204 3
17 NGC 7319 Sy2 22 36 03.602 +33 58 33.18   14.57 13.53 12.65   ~ 325 0
18 HCG 93 CGG 23 15 12.2 +18 59 31           ~ 56 0
19 NGC 7550 LIN 23 15 16.0635618785 +18 57 41.255155052   13.9   11.85   ~ 133 1
20 NGC 7549 GiG 23 15 17.285 +19 02 29.92   14.1   12.79   ~ 133 0
21 MCG+01-59-046 G 23 19 27.8359540728 +09 29 40.355871360   16.38 15.38 14.66   ~ 46 0
22 NGC 7609 IG 23 19 30.0445916616 +09 30 29.844638928   15.23 14.29 13.43   ~ 69 0
23 HCG 95 CGG 23 19 32 +09 29.5           ~ 59 0

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