2010ApJ...725..100W

Query : 2010ApJ...725..100W

2010ApJ...725..100W - Astrophys. J., 725, 100-114 (2010/December-2)

The cool interstellar medium in elliptical galaxies. II. Gas content in the volume-limited sample and results from the combined elliptical and lenticular surveys.

WELCH G.A., SAGE L.J. and YOUNG L.M.

Abstract (from CDS):

We report new observations of atomic and molecular gas in a volume-limited sample of elliptical galaxies. Combining the elliptical sample with an earlier and similar lenticular one, we show that cool gas detection rates are very similar among low-luminosity E and S0 galaxies but are much higher among luminous S0s. Using the combined sample we revisit the correlation between cool gas mass and blue luminosity which emerged from our lenticular survey, finding strong support for previous claims that the molecular gas in ellipticals and lenticulars has different origins. Unexpectedly, however, and contrary to earlier claims, the same is not true for atomic gas. We speculate that both the active galactic nucleus feedback and merger paradigms might offer explanations for differences in detection rates, and might also point toward an understanding of why the two gas phases could follow different evolutionary paths in Es and S0s. Finally, we present a new and puzzling discovery concerning the global mix of atomic and molecular gas in early-type galaxies. Atomic gas comprises a greater fraction of the cool interstellar medium in more gas-rich galaxies, a trend which can be plausibly explained. The puzzle is that galaxies tend to cluster around molecular-to-atomic gas mass ratios near either 0.05 or 0.5.

Abstract Copyright: ∼

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

Simbad objects: 72

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Number of rows : 72
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 NGC 404 LIN 01 09 27.02 +35 43 05.3   12.56 11.73     ~ 511 0
2 NGC 584 Sy2 01 31 20.7231919800 -06 52 04.770287472 11.93 11.44 10.48     ~ 417 2
3 NGC 596 GiG 01 32 51.9046959816 -07 01 53.646821220   11.5       ~ 247 0
4 3C 48 QSO 01 37 41.2996631208 +33 09 35.080388820   16.62 16.20     ~ 2924 2
5 NGC 636 EmG 01 39 06.5293238064 -07 30 45.475975296   12.5       ~ 196 0
6 BAX 028.2522-13.7387 ClG 01 53 00.40 -13 44 18.0           ~ 389 0
7 NGC 720 Sy1 01 53 00.523 -13 44 19.25   12.4   10.36   ~ 536 0
8 NGC 821 AG? 02 08 21.1358498040 +10 59 41.832436704   12.210 11.310 10.739 9.744 ~ 592 0
9 NGC 855 GiG 02 14 03.612 +27 52 37.82 14.19 13.56 12.75 12.40   ~ 236 1
10 IC 225 H2G 02 26 28.254 +01 09 37.49   14.7       ~ 73 0
11 UGCA 34 GiG 02 36 35.4662282832 +59 39 17.507008584   17       ~ 198 2
12 NGC 1023 AG? 02 40 24.0133575864 +39 03 47.663392896 10.91 10.35 9.35 7.83   ~ 689 2
13 NGC 1052 Bla 02 41 04.79849989 -08 15 20.7519527 11.84 11.41 10.47 10.71   ~ 1397 2
14 NGC 1172 GiP 03 01 36.0605047968 -14 50 11.499147312   12.87       ~ 155 0
15 NGC 1297 EmG 03 19 14.2293540312 -19 06 00.356560524   14.97 13.98 13.43 12.71 ~ 90 0
16 MCG-03-09-045 EmG 03 28 14.510 -17 25 11.24   14.38   13.82   ~ 61 0
17 NAME Chandra Deep Field-South reg 03 32 28.0 -27 48 30           ~ 2282 1
18 NGC 1407 rG 03 40 11.904 -18 34 49.36   10.64 9.67 9.13   ~ 613 2
19 NGC 2768 SyG 09 11 37.504 +60 02 13.95 11.30 10.84 9.87     ~ 526 2
20 NGC 2787 LIN 09 19 18.6046606656 +69 12 11.630716128   12.92 11.79     ~ 381 0
21 NGC 3073 EmG 10 00 52.0678224264 +55 37 07.881619152 14.12 14.07 13.40     ~ 201 2
22 NGC 3115 GiG 10 05 13.9270507008 -07 43 06.982712292   11   9.37   ~ 1067 2
23 NGC 3115B GiG 10 05 41.5916660712 -07 58 53.587291224   14.32 13.45     ~ 96 1
24 NGC 3156 GiG 10 12 41.2457368824 +03 07 45.701284764   12.8       ~ 241 0
25 NGC 3193 GiP 10 18 24.884 +21 53 38.32 12.29 11.83 10.88 12.19   ~ 301 1
26 NGC 3226 rG 10 23 27.0064075320 +19 53 54.674937420   14.32 13.33     ~ 440 1
27 NGC 3227 Sy1 10 23 30.5765149296 +19 51 54.282206700   12.61 11.79     ~ 1807 2
28 NGC 3377 GiP 10 47 42.400 +13 59 08.30 11.55 11.24 10.38     ~ 798 1
29 M 105 LIN 10 47 49.600 +12 34 53.87   10.56 9.76 9.12 8.18 ~ 1504 0
30 NGC 3384 GiG 10 48 16.8855574392 +12 37 45.371165844   10.0       ~ 617 1
31 NGC 3412 GiG 10 50 53.2803559464 +13 24 43.721664876 11.84 11.45 10.54     ~ 248 1
32 Z 333-60 GiG 10 52 04.2708205680 +71 46 23.297498292   14.4       ~ 43 0
33 NGC 3489 GiG 11 00 18.5483994744 +13 54 04.206202668 11.46 11.12 10.29     ~ 429 1
34 NGC 3522 GiG 11 06 40.4644062552 +20 05 07.900946304   14.13       ~ 116 1
35 IC 678 G 11 14 06.3760648728 +06 34 37.984806984   15.1       ~ 37 0
36 NGC 3605 GiG 11 16 46.5896102400 +18 01 01.777666908   12.7       ~ 261 0
37 NGC 3607 Sy2 11 16 54.65687 +18 03 06.5120   13.84 12.76     ~ 490 1
38 NGC 3608 LIN 11 16 58.967 +18 08 54.71   11.7       ~ 527 0
39 NGC 3640 GiG 11 21 06.852 +03 14 05.15 11.89 11.36 10.44     ~ 291 3
40 NGC 3818 EmG 11 41 57.3563891040 -06 09 20.459153376   13   11.78   ~ 186 0
41 NGC 3870 H2G 11 45 56.634 +50 11 59.66   13.2       ~ 155 1
42 NGC 3941 Sy2 11 52 55.3609498656 +36 59 10.716212904   11.45 11.62 9.97   ~ 261 0
43 NGC 4026 GiP 11 59 25.0914676128 +50 57 41.951225700   12.17       ~ 290 0
44 NGC 4033 GiG 12 00 34.7437664736 -17 50 33.482206500   12.79   11.32   ~ 102 0
45 NGC 4111 LIN 12 07 03.1334091672 +43 03 56.345868252 12.07 11.63 10.74     ~ 350 1
46 NGC 4125 GiP 12 08 06.017 +65 10 26.88 11.14 10.65 9.72     ~ 448 2
47 NGC 4150 GiG 12 10 33.655 +30 24 05.35 12.72 12.44 11.64     ~ 331 2
48 NGC 4203 LIN 12 15 05.0549203560 +33 11 50.383965120   12.98 11.99     ~ 514 2
49 NGC 4239 GiG 12 17 14.9402986344 +16 31 52.731777360   13.5       ~ 126 0
50 Z 42-8 H2G 12 19 09.840 +03 51 23.34   14.5       ~ 168 0
51 NGC 4278 LIN 12 20 06.8242 +29 16 50.722 11.54 11.09 10.16     ~ 988 2
52 NGC 4283 GiG 12 20 20.7691223880 +29 18 39.154727556 13.47 13.00 12.07     ~ 209 1
53 NGC 4308 GiG 12 21 56.8514262840 +30 04 27.609537504   14.3       ~ 90 0
54 NGC 4310 GiG 12 22 26.2952460216 +29 12 31.220009820   13.22       ~ 100 1
55 NGC 4460 H2G 12 28 45.557 +44 51 51.25   12.5       ~ 147 0
56 NGC 4494 GiP 12 31 24.0391348536 +25 46 30.071664120   10.55 9.74     ~ 491 0
57 Z 335-16 GiG 12 35 32.4201678624 +73 40 29.667397620   13.5       ~ 50 0
58 NGC 4648 GiG 12 41 44.3891511144 +74 25 15.700353240   12.6       ~ 125 0
59 NGC 4627 GiG 12 41 59.9679553813 +32 34 24.810713707 13.16 13.06 12.43     ~ 156 1
60 NGC 4636 LIN 12 42 49.8333280080 +02 41 15.951929028   12.62 11.84     ~ 1156 1
61 Z 159-74 AGN 12 46 55.4014910328 +26 33 51.475201632   15.0       ~ 64 0
62 NGC 4697 GiG 12 48 35.8981498824 -05 48 02.482374564   10.97   9.83   ~ 895 0
63 NGC 4742 GiG 12 51 48.0416784480 -10 27 17.196625800   12   11.55   ~ 235 1
64 NGC 4880 GiG 13 00 10.5729961968 +12 28 59.886650244   13.3       ~ 91 0
65 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4558 2
66 NGC 5845 GiG 15 06 00.7823239488 +01 38 01.704838596   13.8 11.20 12.06 9.94 ~ 403 0
67 M 102 SyG 15 06 29.561 +55 45 47.91 11.12 10.74 9.89     ~ 578 2
68 NGC 7013 AG? 21 03 33.5698770000 +29 53 50.926694208   12.9       ~ 145 0
69 NGC 7457 AG? 23 00 59.9263288440 +30 08 41.764398792   11.04 11.87     ~ 459 0
70 NGC 7464 GiP 23 01 53.716 +15 58 25.65   14.5       ~ 79 0
71 NGC 7465 Sy2 23 02 00.9603717552 +15 57 53.236032120   13.3       ~ 333 0
72 NGC 7468 bCG 23 02 59.172 +16 36 16.20   14.0       ~ 167 0

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