2007A&A...465..787O


C.D.S. - SIMBAD4 rel 1.7 - 2020.11.25CET07:19:47

2007A&A...465..787O - Astronomy and Astrophysics, volume 465, 787-798 (2007/4-3)

Extended, regular HI structures around early-type galaxies.

OOSTERLOO T.A., MORGANTI R., SADLER E.M., VAN DER HULST T. and SERRA P.

Abstract (from CDS):

We discuss the morphology and kinematics of the HI of a sample of 30 southern gas-rich early-type galaxies selected from the HI Parkes All-Sky Survey (HIPASS). This is the largest collection of high-resolution HI data of a homogeneously selected sample. Given the sensitivity of HIPASS, these galaxies represent the most HI-rich early-type galaxies. In two-thirds of the galaxies, we find the HI to be in a large, regular disk- or ring-like structure that in some cases is strongly warped. In the remaining cases we find the HI distributed in irregular tails or clouds offset from the galaxy. The giant, regular HI structures can be up to ∼200kpc in diameter and contain up to 1010M of HI. The incidence of irregular HI structures appears to be somewhat higher in elliptical galaxies, but the large, regular structures are observed in both elliptical and S0 galaxies and are not strictly connected to the presence of a stellar disk. If these two types of galaxies are the result of different formation paths, this is not strongly reflected in the characteristics of the HI. The size and the regular kinematics of the HI structures imply that the neutral hydrogen must have settled in these galaxies several Gyr ago. Merging as well as gas accretion from the IGM are viable explanations for the origin of the gas in these galaxies. The average column density of the HI is low so that little star formation is expected to occur and these early-type galaxies can remain gas rich for very long periods of time. The large HI structures likely represent key structures for tracing the origin and evolution of these galaxies.

Abstract Copyright:

Journal keyword(s): galaxies: elliptical and lenticular, cD - galaxies: ISM - radio lines: galaxies

Simbad objects: 58

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Number of rows : 58

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 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 11090 1
2 IC 1724 GiG 01 43 09.6878887039 -34 14 31.072650814   14.09   12.39   ~ 22 0
3 ESO 153-4 IG 01 58 30.4 -56 14 56   14.65   13.09   ~ 13 0
4 NGC 802 G 01 59 05.9601552563 -67 52 12.126356777   14.17   13.32 13.6 ~ 34 0
5 IC 1813 AGN 02 30 49.4689764578 -34 13 15.070470238   14.20   12.80   ~ 22 0
6 NGC 1490 GiG 03 53 34.200 -66 01 05.26   13.42   11.94 12.6 ~ 41 0
7 IC 2006 EmG 03 54 28.427 -35 58 01.75   12.39   10.94 11.9 ~ 196 0
8 IC 2041 GiG 04 12 34.9217667239 -32 49 02.881091644   14.772   13.841   ~ 18 0
9 NGC 1596 GiP 04 27 38.1085542418 -55 01 39.815152720   12.01 10.97 10.54   ~ 111 0
10 ESO 118-34 GiG 04 40 17.485 -58 44 39.40   13.50 13.52 12.67 13.4 ~ 50 0
11 IC 2122 BiC 05 19 01.397 -37 05 21.76   13.83   12.18   ~ 19 0
12 NGC 1947 GiG 05 26 47.613 -63 45 36.08   11.76 10.80 10.06   ~ 120 0
13 NGC 2328 G 07 02 36.193 -42 04 06.88   13.04   12.25 13.0 ~ 47 0
14 ESO 123-11 GiG 07 28 06.3551535374 -62 21 47.189852463   13.74   12.28   ~ 37 0
15 ESO 88-18 G 07 29 06.008 -66 54 42.88   14.91   14.59   ~ 14 0
16 NGC 2434 GiG 07 34 51.1487209121 -69 17 03.008825858 12.82 12.50 11.26 10.84   ~ 177 1
17 NGC 2904 GiG 09 30 16.981 -30 23 06.14   13.69   12.04   ~ 45 0
18 NGC 3108 GiG 10 02 29.022 -31 40 38.57   12.48   11.03   ~ 59 0
19 ESO 92-21 GiG 10 21 05.5234392914 -66 29 31.084394869   13.89   13.5 13.3 ~ 28 0
20 ESO 318-21 GiG 10 53 05.962 -40 19 44.41   13.91   12.27   ~ 44 0
21 ESO 215-32 GiG 11 11 22.427 -48 01 11.63   14.20   12.90   ~ 13 0
22 2MASX J12365934+1419494 LSB 12 36 59.3469733716 +14 19 49.158501218   17.80       ~ 175 0
23 MCG-07-26-021 GiG 12 39 50.3144556479 -41 06 24.327883924   14.5       ~ 14 0
24 ESO 322-84 GiG 12 48 00.2937697181 -39 37 51.260952398   14.45   13.11   ~ 15 0
25 ESO 323-13 GiG 12 51 32.911 -41 13 39.18   15.26 13.99 13.67   ~ 21 0
26 ESO 269-12 Sy2 12 56 40.5124266340 -46 55 34.282336379   14.72   13.54 13.9 ~ 55 0
27 ESO 269-14 GiG 12 57 06.969 -46 52 17.73   14.58   13.61   ~ 13 0
28 ESO 381-47 G 13 01 05.3860924408 -35 36 59.524259331   14.02   12.77 13.1 ~ 40 0
29 NGC 4936 LIN 13 04 17.091 -30 31 34.71   11.76 12.23 10.13 10.9 ~ 95 0
30 IC 4200 AGN 13 09 34.731 -51 58 06.65   13.89 13.82 12.10 12.6 ~ 37 0
31 NGC 4988 G 13 09 54.3876147815 -43 06 20.267298315   13.86   12.76   ~ 18 1
32 ESO 269-80 GiG 13 19 00.9430476198 -47 15 27.972207690   13.85   12.24   ~ 32 0
33 NAME Centaurus A Sy2 13 25 27.61509104 -43 01 08.8056025   8.18 6.84 6.66   ~ 4039 3
34 NGC 5234 GiG 13 37 29.9370194291 -49 50 13.103436941   14.00   13.5 12.9 ~ 19 0
35 IC 4312 GiG 13 40 30.9292620379 -51 04 15.262027207   13.41   11.78   ~ 15 0
36 NGC 5266 GiG 13 43 02.120 -48 10 09.77   11.89 11.14 11.9 11.3 ~ 158 0
37 NGC 5291 AGN 13 47 24.459 -30 24 25.03   15.18 14.00 13.57 12.7 ~ 142 1
38 ESO 221-20 GiG 13 58 23.0732174512 -48 28 33.483492855   13.25   11.45   ~ 25 0
39 ESO 137-44 IG 16 50 54.606 -61 48 45.26   13.68 13.65 11.78   ~ 16 0
40 ESO 137-45 GiG 16 51 02.7371885918 -60 48 31.173809632   13.27   11.26   ~ 36 0
41 ESO 138-1 Sy2 16 51 20.2687785665 -59 14 04.287486933   14.35 13.63 13.02   ~ 111 0
42 IC 4647 G 17 26 03.7308998335 -80 11 42.479718001   14.47   13.21 13.3 ~ 18 0
43 ESO 140-31 GiG 18 37 53.6516589481 -57 36 39.991427982   13.64       ~ 19 0
44 ESO 103-49 GiG 18 42 01.5277793520 -65 05 44.164689218   14.96   13.29   ~ 17 0
45 IC 4765 BiC 18 47 18.150 -63 19 52.14   12.33 11.36 10.53 10.75 ~ 76 2
46 IC 4847 G 19 23 31.9028866678 -65 30 23.806837546   14.97   13.72   ~ 11 0
47 NGC 6799 G 19 32 16.5452204357 -55 54 28.291447453   13.41   11.98   ~ 42 0
48 ICRF J193925.0-634245 Sy2 19 39 25.02671 -63 42 45.6255   18.87 18.37 17.64   ~ 975 1
49 IC 4889 GiP 19 45 15.168 -54 20 38.91   12.25 11.08 10.73 11.5 ~ 133 0
50 NGC 6850 GiG 20 03 30.081 -54 50 40.88   13.52 13.07 11.96   ~ 30 0
51 IC 4970 IG 20 16 57.9 -70 44 57   14.16 13.88 13.06   ~ 26 0
52 TYC 9311-35-1 * 20 18 36.017 -70 51 13.85   13.17 12.61 11.83   ~ 33 0
53 ESO 234-11 G 20 22 03.054 -47 59 12.46   14.59   13.05   ~ 19 0
54 NGC 6920 IG 20 43 57.4877734861 -80 00 03.198389411   13.08   11.27 12.0 ~ 44 0
55 IC 5063 Sy2 20 52 02.329 -57 04 07.60   12.92 13.60 11.30   ~ 552 1
56 NGC 7166 GiP 22 00 32.922 -43 23 23.20   12.64 11.84 11.20   ~ 64 0
57 IC 1459 GiP 22 57 10.60677155 -36 27 43.9953697   10.96 11.85 9.34 10.3 ~ 579 2
58 ESO 240-10 GiG 23 37 44.414 -47 30 22.92   12.49   11.15   ~ 49 0

    Equat.    Gal    SGal    Ecl

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2020.11.25-07:19:47

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