2008A&A...483...57S


C.D.S. - SIMBAD4 rel 1.7 - 2020.11.25CET06:40:52

2008A&A...483...57S - Astronomy and Astrophysics, volume 483, 57-69 (2008/5-3)

Stellar populations, neutral hydrogen, and ionised gas in field early-type galaxies.

SERRA P., TRAGER S.C., OOSTERLOO T.A. and MORGANTI R.

Abstract (from CDS):

We present a study of the stellar populations of a sample of 39 local, field early-type galaxies whose HI properties are known from interferometric data. Our aim is to understand whether stellar age and chemical composition depend on the HI content of galaxies. We also study their ionised gas content and how it relates to the neutral hydrogen gas. Stellar populations and ionised gas are studied from optical long-slit spectra. We determine stellar age, metallicity and alpha-to-iron ratio by analysing a set of Lick/IDS line-strength indices measured from the spectra after modelling and subtracting the ionised-gas emission. We do not find any trend in the stellar populations parameters with M(HI). However, we do find that, at stellar velocity dispersion σ≤230km/s, 2/3 of the galaxies with less than 108M of HI are centrally rejuvenated, while none of the HI-richer systems is. Furthermore, none of the more massive, σ≥230 km/s -objects is centrally rejuvenated independently of their HI mass. Concerning the ionised gas, we detect emission in 60% of the sample. This is generally extended and always characterised by LINER-like emission-line ratios at any radius. We find that a large HI mass is necessary (but not sufficient) for a galaxy to host bright ionised-gas emission. A plausible interpretation of our results is that gas-rich mergers play a significant role in E/S0 formation, especially at lower σ. Within this picture, HI-poor, centrally-rejuvenated objects could form in mergers where gas angular-momentum removal (and therefore inflow) is efficient; HI-rich galaxies with no significant age gradients (but possibly uniformly young) could be formed in interactions characterised by high-angular momentum gas.

Abstract Copyright:

Journal keyword(s): galaxies: elliptical and lenticular, cD - galaxies: evolution - galaxies: interactions - galaxies: stellar content - galaxies: ISM

Simbad objects: 86

goto Full paper

goto View the reference in ADS

Number of rows : 86

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 NGC 596 GiG 01 32 51.906 -07 01 53.54   11.5       ~ 230 0
2 NGC 636 GiG 01 39 06.529 -07 30 45.37   12.5       ~ 181 0
3 HD 10975 PM* 01 48 38.9252296293 +37 57 10.332355558   6.922 5.929     K0III 57 0
4 HD 13783 PM* 02 16 49.2111567366 +64 57 09.391547064 9.09 8.99 8.31 7.73 7.35 G8V 114 0
5 HD 14221 PM* 02 19 22.6770593690 +48 57 19.662639303 6.800 6.820 6.410     F4V 55 0
6 * 27 Ari SB* 02 30 54.3971452832 +17 42 13.890761847   7.135 6.225     G8III-IVFe-2 112 0
7 NGC 1426 GiG 03 42 49.0995354501 -22 06 30.172682100   12.21 11.44 10.90   ~ 185 0
8 NGC 1439 GiG 03 44 49.9398366940 -21 55 14.356287885   12.23   10.86   ~ 161 0
9 NGC 1490 GiG 03 53 34.200 -66 01 05.26   13.42   11.94 12.6 ~ 41 0
10 V* HP Eri LP* 04 38 55.7330333369 -13 20 48.133826226 10.91 9.72 8.33     G8/K0IIIwF7 126 0
11 * 68 Eri PM* 05 08 43.6984486634 -04 27 22.340521388   5.546 5.119     F5.5VkF4mF2 205 0
12 NGC 1947 GiG 05 26 47.613 -63 45 36.08   11.76 10.80 10.06   ~ 120 0
13 HD 37792 PM* 05 40 17.4100660342 -19 13 37.740833388   8.12 7.71     F2IV/V 42 0
14 HD 41312 ** 06 03 15.6035172436 -26 17 04.347109442 7.82 6.38 5.04     K2.5IIIFe-2 65 0
15 HD 49933 ** 06 50 49.831 -00 32 27.18           F3V 331 2
16 * tet CMa PM* 06 54 11.3997692336 -12 02 19.061054441 7.20 5.51 4.08 2.95 2.17 K3/4III 208 0
17 * 62 Aur PM* 06 59 02.8471643830 +38 03 08.350120718   7.245 6.021     K2III 77 0
18 NGC 2300 IG 07 32 20.486 +85 42 31.90   12.2       ~ 316 0
19 NGC 2434 GiG 07 34 51.1487209121 -69 17 03.008825858 12.82 12.50 11.26 10.84   ~ 177 1
20 HD 62301 PM* 07 44 56.1933366656 +39 33 22.916336799 7.220 7.270   6.4   F8V 121 0
21 HD 65583 PM* 08 00 32.1297149403 +29 12 44.476641343 7.89 7.71 7.00 6.40 5.98 K0V_Fe-1.3 291 0
22 * 28 Mon Ro* 08 01 13.3357402 -01 23 33.393493   6.147 4.680     K4III 71 1
23 NGC 2534 LIN 08 12 54.1609698831 +55 40 19.428422248 15.43 15.13 13.59     ~ 57 0
24 * bet Cnc PM* 08 16 30.9210081 +09 11 07.957924 6.750 5.000 3.520 2.42 1.62 K4IIIBa0.5: 344 0
25 NGC 2549 G 08 18 58.3495954248 +57 48 11.017861378   12.1       ~ 233 0
26 * ups02 Cnc PM* 08 33 00.1040838196 +24 05 05.260865502   7.373 6.340     G9III 140 0
27 * sig Hya * 08 38 45.4374649 +03 20 29.170097 6.91 5.63 4.43 3.54 2.98 K1III 132 0
28 HD 76151 PM* 08 54 17.9469808897 -05 26 04.046487788 6.89 6.67 6.00     G2V 479 0
29 HD 78558 PM* 09 08 25.2378567417 -15 08 41.237446346   7.91 7.34     G0.5V 131 0
30 HD 78738 * 09 08 57.5295592642 -31 57 39.166685562   9.49 9.25     A2/3III 3 0
31 * 20 Hya * 09 09 35.5701637426 -08 47 15.528017417   6.47 5.46     K0II/III 41 0
32 NGC 2768 SyG 09 11 37.504 +60 02 13.95 11.30 10.84 9.87     ~ 469 2
33 NGC 2810 G 09 22 04.5 +71 50 38   13.4       ~ 41 1
34 NGC 2904 GiG 09 30 16.981 -30 23 06.14   13.69   12.04   ~ 45 0
35 HD 82734 * 09 33 12.4599037254 -21 06 56.600257136   6.027 5.003     K0III 87 0
36 NGC 3108 GiG 10 02 29.022 -31 40 38.57   12.48   11.03   ~ 59 0
37 NGC 3193 GiP 10 18 24.884 +21 53 38.32 12.29 11.83 10.88 12.19   ~ 269 1
38 ESO 92-21 GiG 10 21 05.5234392914 -66 29 31.084394869   13.89   13.5 13.3 ~ 28 0
39 HD 89995 PM* 10 23 14.6168681196 +05 41 39.307046635   7.00   6.3   F6V 59 0
40 NAME Great Attractor SCG 10 32 -46.0           ~ 474 0
41 HD 91889 PM* 10 36 32.3819362122 -12 13 48.440040258   6.22 5.70     F8V 164 0
42 HD 97916 SB* 11 15 54.2294079228 +02 05 11.982106821 9.50 9.61   8.9   F0V 154 0
43 NGC 3610 GiG 11 18 25.276 +58 47 10.49   11.4       ~ 285 0
44 NGC 3640 GiG 11 21 06.852 +03 14 05.15 11.89 11.36 10.44     ~ 255 3
45 NGC 3998 SyG 11 57 56.1333561013 +55 27 12.925850484   11.64 12.10 10.09   ~ 583 2
46 NGC 4026 GiP 11 59 25.0903700828 +50 57 41.935297936   12.17       ~ 241 0
47 NGC 4125 GiP 12 08 06.017 +65 10 26.88 11.14 10.65 9.72     ~ 399 2
48 NGC 4278 LIN 12 20 06.8253868 +29 16 50.713486 11.54 11.09 10.16     ~ 893 2
49 M 86 GiG 12 26 11.814 +12 56 45.49 10.32 9.83 8.90   7.50 ~ 1020 1
50 NAME Vir I ClG 12 26 32.1 +12 43 24   10.00 8.49     ~ 5925 0
51 M 49 Sy2 12 29 46.798 +08 00 01.48   13.21 12.17     ~ 1975 2
52 ESO 381-47 G 13 01 05.3860924408 -35 36 59.524259331   14.02   12.77 13.1 ~ 40 0
53 NAME SHAPLEY-CENTAURUS CL SCG 13 06.0 -33 04           ~ 513 0
54 IC 4200 AGN 13 09 34.731 -51 58 06.65   13.89 13.82 12.10 12.6 ~ 37 0
55 HD 114606 PM* 13 11 21.4029562561 +09 37 33.539749216 9.41 9.34 8.72 8.18 7.81 G4 114 0
56 * 53 Vir PM* 13 12 03.5439044831 -16 11 54.977342934   5.50 5.04     F5.5V 126 0
57 NGC 5018 GiP 13 13 01.000 -19 31 05.87   11.71   10.31   ~ 288 1
58 * 55 Vir PM* 13 14 10.8958308887 -19 55 51.410166108   6.20 5.33     G7IV 112 0
59 NGC 5173 GiP 13 28 25.2817718603 +46 35 29.896777764   13.10       ~ 132 1
60 HD 119288 PM* 13 42 12.7607173974 +08 23 18.227521395   6.58   5.9   F2V 108 0
61 NGC 5322 SyG 13 49 15.24 +60 11 25.8   11.3       ~ 385 2
62 * 89 Vir PM* 13 49 52.2833980368 -18 08 03.010291899   6.018 4.959     K0+IIIb 100 0
63 * p Vir PM* 13 54 42.1451632540 -01 30 11.242079124   6.258 5.159     K1/2II/III 73 0
64 HD 122106 ** 13 59 49.2762205750 -03 32 59.311775809   6.884 6.394     F6V 79 0
65 * iot Vir PM* 14 16 00.8695049 -06 00 01.963348 4.64 4.60 4.08     F7III 335 0
66 * ups Vir PM* 14 19 32.4801543933 -02 15 55.864300715 7.01 6.16 5.14     G9IIICN-0.5 78 0
67 HD 126053 PM* 14 23 15.2847534665 +01 14 29.641784590 6.98 6.90 6.27 5.71 5.39 G1.5V 364 0
68 HD 126218 PM* 14 24 48.6255141 -24 48 22.709013   6.300 5.332     K0III 46 0
69 HD 126681 PM* 14 27 24.9096361739 -18 24 40.457119166   9.939 9.535     G3V 166 0
70 * 5 Lib * 14 45 57.7583993772 -15 27 34.356747948   7.58 6.34     K2III 21 0
71 HD 130322 PM* 14 47 32.7265637197 -00 16 53.305928889   8.82 8.04     K0V 235 1
72 * 12 Lib * 14 54 20.1287330028 -24 38 31.949570043   6.612 5.266     K2/3III 36 0
73 NGC 5903 GiG 15 18 36.529 -24 04 06.94   12.11 11.48 10.73   ~ 134 1
74 ESO 140-31 GiG 18 37 53.6516589481 -57 36 39.991427982   13.64       ~ 19 0
75 IC 4889 GiP 19 45 15.168 -54 20 38.91   12.25 11.08 10.73 11.5 ~ 133 0
76 HD 191046 PM* 20 06 28.9897316985 +36 13 35.916342968   8.17 7.02     K0IIIFe-1.5 96 0
77 HD 199191 PM* 20 53 18.3144072884 +54 31 05.160694389 8.69 8.08   6.6   K0III 86 0
78 HD 201891 PM* 21 11 59.0322335571 +17 43 39.888647667 7.74 7.88 7.37 6.91 6.59 G5V_Fe-2.5 370 0
79 HD 201889 ** 21 11 59.52350 +24 10 05.3897 8.60 8.64 8.05 7.52 7.15 G1V 149 0
80 NGC 7052 rG 21 18 33.047 +26 26 48.65 15.52 14.85 13.09     ~ 301 1
81 NGC 7332 GiP 22 37 24.522 +23 47 54.06   12.0       ~ 357 0
82 NGC 7457 G 23 00 59.9274269967 +30 08 41.794468187   11.04 11.87     ~ 411 0
83 NGC 7585 IG 23 18 01.348 -04 39 01.07   12.46 18.7 11.23   ~ 99 0
84 NGC 7600 G 23 18 53.8404957205 -07 34 49.704726237   13   11.68   ~ 66 0
85 NGC 7619 GiG 23 20 14.524 +08 12 22.63   12.7       ~ 408 0
86 NGC 7626 rG 23 20 42.524 +08 13 01.43   12.8       ~ 405 1

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2008A&A...483...57S and select 'bookmark this link' or equivalent in the popup menu


2020.11.25-06:40:53

© Université de Strasbourg/CNRS

    • Contact