2007ApJ...657..232S

Query : 2007ApJ...657..232S

2007ApJ...657..232S - Astrophys. J., 657, 232-240 (2007/March-1)

The cool ISM in elliptical galaxies. I. A survey of molecular gas.

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

Abstract (from CDS):

We present preliminary results from a survey of CO emission from members of a volume-limited sample of non-cluster elliptical galaxies. Our intent is to compare the gas properties of these ellipticals to a sample of lenticulars selected using similar criteria. The data, although still sparse, suggest that the cool gas in ellipticals shows the same puzzling upper mass cutoff found in the lenticular galaxies. We find, however, significantly lower detection rates and possibly much lower H2/H I mass ratios in the ellipticals. The detection rate is higher among the lower mass galaxies, as has been found previously. This seems puzzling given that the deeper potential wells of the larger galaxies ought to make gas retention easier, but perhaps that effect is overwhelmed by feedback from the central supermassive black hole. As we have observed ∼40% of our full sample, the conclusions are necessarily tentative at this time.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Elliptical and Lenticular, cD - Galaxies: Evolution - Galaxies: ISM

Simbad objects: 48

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Number of rows : 48
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 584 Sy2 01 31 20.7231919800 -06 52 04.770287472 11.93 11.44 10.48     ~ 417 2
2 NGC 596 GiG 01 32 51.9046959816 -07 01 53.646821220   11.5       ~ 247 0
3 NGC 636 EmG 01 39 06.5293238064 -07 30 45.475975296   12.5       ~ 196 0
4 BAX 028.2522-13.7387 ClG 01 53 00.40 -13 44 18.0           ~ 389 0
5 NGC 720 Sy1 01 53 00.523 -13 44 19.25   12.4   10.36   ~ 536 0
6 NGC 821 AG? 02 08 21.1358498040 +10 59 41.832436704   12.210 11.310 10.739 9.744 ~ 592 0
7 NGC 855 GiG 02 14 03.612 +27 52 37.82 14.19 13.56 12.75 12.40   ~ 236 1
8 IC 225 H2G 02 26 28.254 +01 09 37.49   14.7       ~ 73 0
9 UGCA 34 GiG 02 36 35.4662282832 +59 39 17.507008584   17       ~ 198 2
10 NGC 1052 Bla 02 41 04.79849989 -08 15 20.7519527 11.84 11.41 10.47 10.71   ~ 1397 2
11 NGC 1172 GiP 03 01 36.0605047968 -14 50 11.499147312   12.87       ~ 155 0
12 NGC 1297 EmG 03 19 14.2293540312 -19 06 00.356560524   14.97 13.98 13.43 12.71 ~ 90 0
13 MCG-03-09-045 EmG 03 28 14.510 -17 25 11.24   14.38   13.82   ~ 61 0
14 NGC 1407 rG 03 40 11.904 -18 34 49.36   10.64 9.67 9.13   ~ 613 2
15 NGC 2768 SyG 09 11 37.504 +60 02 13.95 11.30 10.84 9.87     ~ 526 2
16 NGC 3073 EmG 10 00 52.0678224264 +55 37 07.881619152 14.12 14.07 13.40     ~ 201 2
17 NGC 3115 GiG 10 05 13.9270507008 -07 43 06.982712292   11   9.37   ~ 1067 2
18 NGC 3115B GiG 10 05 41.5916660712 -07 58 53.587291224   14.32 13.45     ~ 96 1
19 NGC 3156 GiG 10 12 41.2457368824 +03 07 45.701284764   12.8       ~ 241 0
20 NGC 3193 GiP 10 18 24.884 +21 53 38.32 12.29 11.83 10.88 12.19   ~ 301 1
21 NGC 3226 rG 10 23 27.0064075320 +19 53 54.674937420   14.32 13.33     ~ 440 1
22 NGC 3377 GiP 10 47 42.400 +13 59 08.30 11.55 11.24 10.38     ~ 798 1
23 M 105 LIN 10 47 49.600 +12 34 53.87   10.56 9.76 9.12 8.18 ~ 1504 0
24 Z 333-60 GiG 10 52 04.2708205680 +71 46 23.297498292   14.4       ~ 43 0
25 NGC 3522 GiG 11 06 40.4644062552 +20 05 07.900946304   14.13       ~ 116 1
26 IC 678 G 11 14 06.3760648728 +06 34 37.984806984   15.1       ~ 37 0
27 NGC 3605 GiG 11 16 46.5896102400 +18 01 01.777666908   12.7       ~ 261 0
28 NGC 3608 LIN 11 16 58.967 +18 08 54.71   11.7       ~ 527 0
29 NGC 3640 GiG 11 21 06.852 +03 14 05.15 11.89 11.36 10.44     ~ 291 3
30 NGC 3818 EmG 11 41 57.3563891040 -06 09 20.459153376   13   11.78   ~ 186 0
31 NGC 4033 GiG 12 00 34.7437664736 -17 50 33.482206500   12.79   11.32   ~ 102 0
32 NGC 4125 GiP 12 08 06.017 +65 10 26.88 11.14 10.65 9.72     ~ 448 2
33 NGC 4239 GiG 12 17 14.9402986344 +16 31 52.731777360   13.5       ~ 126 0
34 NGC 4278 LIN 12 20 06.8242 +29 16 50.722 11.54 11.09 10.16     ~ 988 2
35 NGC 4283 GiG 12 20 20.7691223880 +29 18 39.154727556 13.47 13.00 12.07     ~ 209 1
36 NGC 4308 GiG 12 21 56.8514262840 +30 04 27.609537504   14.3       ~ 90 0
37 NGC 4494 GiP 12 31 24.0391348536 +25 46 30.071664120   10.55 9.74     ~ 491 0
38 Z 335-16 GiG 12 35 32.4201678624 +73 40 29.667397620   13.5       ~ 50 0
39 NGC 4648 GiG 12 41 44.3891511144 +74 25 15.700353240   12.6       ~ 125 0
40 NGC 4627 GiG 12 41 59.9679553813 +32 34 24.810713707 13.16 13.06 12.43     ~ 156 1
41 NGC 4636 LIN 12 42 49.8333280080 +02 41 15.951929028   12.62 11.84     ~ 1156 1
42 Z 159-74 AGN 12 46 55.4014910328 +26 33 51.475201632   15.0       ~ 64 0
43 NGC 4697 GiG 12 48 35.8981498824 -05 48 02.482374564   10.97   9.83   ~ 895 0
44 NGC 4742 GiG 12 51 48.0416784480 -10 27 17.196625800   12   11.55   ~ 235 1
45 NGC 5845 GiG 15 06 00.7823239488 +01 38 01.704838596   13.8 11.20 12.06 9.94 ~ 403 0
46 NGC 7354 PN 22 40 19.8733664208 +61 17 08.746685772           ~ 286 1
47 NGC 7464 GiP 23 01 53.716 +15 58 25.65   14.5       ~ 79 0
48 NGC 7468 bCG 23 02 59.172 +16 36 16.20   14.0       ~ 167 0

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