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Query : 2010MNRAS.401L..29S |
2010MNRAS.401L..29S - Mon. Not. R. Astron. Soc., 401, L29-L33 (2010/January-1)
Cold gas and young stars in tidally disturbed ellipticals at z = 0.
SERRA P. and OOSTERLOO T.A.
Abstract (from CDS):
We find that ≥25 per cent of ellipticals contain Hi at the level of M(Hi) >108M☉, and that M(Hi) is of the order of a few per cent of the total stellar mass. Available data are insufficient to establish whether galaxies with a disturbed stellar morphology are more likely to contain Hi. However, Hi interferometry reveals very disturbed gas morphology/kinematics in all but one of the detected systems, confirming the continuing assembly of many ellipticals but also showing that this is not necessarily gas free. We also find that all very disturbed ellipticals have a single-stellar-population-equivalent age <4Gyr. We interpret this as evidence that ∼0.5-5 per cent of their stellar mass is contained in a young population formed during the past ∼1Gyr. Overall, a large fraction of ellipticals seem to have continued their assembly over the past few Gyr in the presence of a mass of cold gas of the order of 10 per cent of the galaxy stellar mass. This material is now observable as neutral hydrogen and young stars.
Abstract Copyright: © 2009 The Authors. Journal compilation © 2009 RAS
Journal keyword(s): galaxies: evolution - galaxies: ISM - galaxies: stellar content
Simbad objects: 58
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 - 2024 |
#notes |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | NGC 584 | Sy2 | 01 31 20.7231919800 | -06 52 04.770287472 | 11.93 | 11.44 | 10.48 | ~ | 402 | 2 | ||
2 | NGC 596 | GiG | 01 32 51.9046959816 | -07 01 53.646821220 | 11.5 | ~ | 240 | 0 | ||||
3 | 2E 0150.5-1358 | ClG | 01 53 00.40 | -13 44 18.0 | ~ | 387 | 0 | |||||
4 | NGC 720 | Sy1 | 01 53 00.523 | -13 44 19.25 | 12.4 | 10.36 | ~ | 522 | 0 | |||
5 | NGC 1199 | GiP | 03 03 38.4220343160 | -15 36 48.461862600 | 13.99 | 12.97 | 12.31 | 11.59 | ~ | 184 | 1 | |
6 | NGC 1209 | EmG | 03 06 03.020 | -15 36 40.58 | 12 | 11.42 | ~ | 145 | 0 | |||
7 | NGC 1399 | BiC | 03 38 29.083 | -35 27 02.67 | 11.05 | 9.74 | 9.59 | 8.12 | ~ | 1569 | 1 | |
8 | NGC 1395 | SyG | 03 38 29.789 | -23 01 39.69 | 10.71 | 8.99 | ~ | 277 | 0 | |||
9 | NGC 1407 | GiG | 03 40 11.904 | -18 34 49.36 | 10.64 | 9.67 | 9.13 | ~ | 583 | 1 | ||
10 | NGC 2865 | GiG | 09 23 30.205 | -23 09 41.37 | 12.39 | 11.43 | 11.06 | ~ | 240 | 0 | ||
11 | NGC 2974 | Sy2 | 09 42 33.2918467632 | -03 41 57.038311068 | 12.19 | 10.77 | ~ | 438 | 0 | |||
12 | NGC 2986 | EmG | 09 44 16.0193679072 | -21 16 40.971622512 | 11.60 | 10.93 | 9.96 | ~ | 168 | 0 | ||
13 | NGC 3078 | AGN | 09 58 24.59498715 | -26 55 35.9552427 | 12.00 | 11.07 | 10.51 | ~ | 156 | 0 | ||
14 | NGC 3258 | EmG | 10 28 53.588 | -35 36 19.98 | 12.50 | 11.72 | 10.86 | ~ | 187 | 0 | ||
15 | NGC 3268 | EmG | 10 30 00.6490581240 | -35 19 31.519591284 | 12.57 | 11.77 | 10.68 | ~ | 154 | 0 | ||
16 | ESO 377-15 | GiG | 11 09 32.1041812176 | -37 20 58.850222712 | 13.30 | 12.21 | 11.77 | ~ | 37 | 0 | ||
17 | NGC 3557 | Sy1 | 11 09 57.653 | -37 32 21.02 | 11.50 | 10.40 | 9.79 | ~ | 275 | 2 | ||
18 | NGC 3585 | GiG | 11 13 17.109 | -26 45 17.96 | 10.64 | 9.22 | ~ | 288 | 0 | |||
19 | NGC 3640 | GiG | 11 21 06.852 | +03 14 05.15 | 11.89 | 11.36 | 10.44 | ~ | 275 | 3 | ||
20 | NGC 3706 | EmG | 11 29 44.4309190968 | -36 23 28.745465928 | 12.20 | 11.08 | 10.56 | ~ | 147 | 0 | ||
21 | NGC 3904 | GiG | 11 49 13.206 | -29 16 36.09 | 11.82 | 10.96 | 10.29 | ~ | 156 | 0 | ||
22 | NGC 3923 | GiG | 11 51 01.783 | -28 48 22.36 | 11.41 | 10.59 | 9.80 | 8.88 | ~ | 439 | 1 | |
23 | NGC 3962 | LIN | 11 54 40.0986420456 | -13 58 30.234748836 | 13.16 | 12.16 | 11.15 | ~ | 154 | 0 | ||
24 | NGC 4105 | Sy2 | 12 06 40.767 | -29 45 36.64 | 11.35 | 12.52 | 9.53 | ~ | 127 | 0 | ||
25 | NGC 4261 | LIN | 12 19 23.2160630 | +05 49 29.700024 | 13.92 | 12.87 | ~ | 1221 | 0 | |||
26 | NGC 4278 | LIN | 12 20 06.8242 | +29 16 50.722 | 11.54 | 11.09 | 10.16 | ~ | 945 | 2 | ||
27 | NGC 4365 | GiG | 12 24 28.228 | +07 19 03.07 | 11.5 | ~ | 840 | 0 | ||||
28 | NAME Virgo Cluster | ClG | 12 26 32.1 | +12 43 24 | ~ | 6619 | 0 | |||||
29 | IC 3370 | Sy2 | 12 27 37.3278534168 | -39 20 16.247588712 | 11.99 | 12.12 | 10.39 | ~ | 149 | 0 | ||
30 | M 49 | Sy2 | 12 29 46.8 | +08 00 01 | 13.21 | 12.17 | ~ | 2088 | 2 | |||
31 | NGC 4636 | LIN | 12 42 49.8333280080 | +02 41 15.951929028 | 12.62 | 11.84 | ~ | 1116 | 1 | |||
32 | NGC 4645 | GiG | 12 44 10.0048812288 | -41 44 59.895170736 | 12.82 | 11.68 | 11.76 | ~ | 81 | 0 | ||
33 | NGC 4697 | GiG | 12 48 35.8981498824 | -05 48 02.482374564 | 10.97 | 9.83 | ~ | 859 | 0 | |||
34 | NGC 4696 | BiC | 12 48 49.2724775784 | -41 18 39.304053252 | 11.21 | 10.7 | ~ | 490 | 3 | |||
35 | NGC 4767 | GiG | 12 53 52.9471545720 | -39 42 51.419007360 | 12.62 | 11.53 | 10.90 | ~ | 88 | 0 | ||
36 | NGC 5011 | EmG | 13 12 51.8644891368 | -43 05 46.645742832 | 12.14 | 11.33 | 10.51 | ~ | 90 | 0 | ||
37 | NGC 5018 | GiP | 13 13 01.0452720960 | -19 31 05.649751992 | 11.71 | 10.31 | ~ | 312 | 1 | |||
38 | NGC 5044 | BiC | 13 15 23.9607836592 | -16 23 07.547751744 | 11.9 | 10.74 | ~ | 500 | 0 | |||
39 | NGC 5061 | Sy2 | 13 18 05.054 | -26 50 14.00 | 11.18 | 10.41 | 9.66 | 13.59 | ~ | 175 | 0 | |
40 | NGC 5077 | AGN | 13 19 31.66962921 | -12 39 25.0765176 | 13.87 | 12.85 | 11.30 | ~ | 295 | 0 | ||
41 | NGC 5576 | GiP | 14 21 03.691 | +03 16 15.78 | 12.25 | 11.85 | 10.96 | ~ | 329 | 1 | ||
42 | NGC 5638 | GiP | 14 29 40.3717451400 | +03 13 59.987811648 | 12.57 | 12.14 | 11.20 | ~ | 243 | 2 | ||
43 | NGC 5812 | EmG | 15 00 55.708 | -07 27 26.33 | 12 | 11.19 | ~ | 159 | 0 | |||
44 | NGC 5813 | LIN | 15 01 11.2302420864 | +01 42 07.141569696 | 12.00 | 11.45 | 10.46 | 10.06 | ~ | 636 | 1 | |
45 | NGC 5846 | BiC | 15 06 29.253 | +01 36 20.29 | 11.9 | 9.74 | ~ | 848 | 1 | |||
46 | NGC 5898 | EmG | 15 18 13.5683042256 | -24 05 52.428845076 | 12.37 | 11.52 | 10.71 | ~ | 153 | 1 | ||
47 | NGC 5903 | GiG | 15 18 36.529 | -24 04 06.94 | 12.11 | 11.48 | 10.73 | ~ | 141 | 1 | ||
48 | IC 4797 | Sy2 | 18 56 29.656 | -54 18 21.04 | 12.32 | 11.27 | 10.79 | ~ | 94 | 0 | ||
49 | IC 4889 | EmG | 19 45 15.168 | -54 20 38.91 | 12.25 | 11.08 | 10.73 | 11.5 | ~ | 138 | 0 | |
50 | NGC 6861 | EmG | 20 07 19.482 | -48 22 12.94 | 12.01 | 11.10 | 10.43 | ~ | 189 | 0 | ||
51 | NGC 6868 | Sy2 | 20 09 54.082 | -48 22 46.25 | 11.58 | 9.22 | 10.01 | 7.91 | ~ | 226 | 1 | |
52 | NGC 6958 | AG? | 20 48 42.6064604520 | -37 59 50.876997504 | 12.79 | 12.27 | 11.42 | 10.83 | ~ | 155 | 1 | |
53 | NGC 7029 | Sy2 | 21 11 52.0283149344 | -49 17 01.291280136 | 12.54 | 11.81 | 11.02 | ~ | 105 | 0 | ||
54 | NGC 7144 | GiG | 21 52 42.4890937656 | -48 15 13.729791132 | 11.87 | 10.71 | 10.39 | ~ | 152 | 1 | ||
55 | NGC 7196 | AG? | 22 05 54.8107967352 | -50 07 09.868854000 | 12.43 | 11.54 | 10.89 | ~ | 115 | 0 | ||
56 | NGC 7192 | Sy2 | 22 06 50.1107894976 | -64 18 58.721070096 | 12.21 | 11.21 | 10.77 | ~ | 143 | 0 | ||
57 | IC 1459 | AGN | 22 57 10.60682195 | -36 27 43.9966421 | 10.96 | 11.85 | 9.34 | 10.3 | ~ | 624 | 2 | |
58 | NGC 7507 | GiG | 23 12 07.595 | -28 32 22.70 | 11.60 | 9.98 | ~ | 179 | 0 |
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