2010MNRAS.407.2261K

Query : 2010MNRAS.407.2261K

2010MNRAS.407.2261K - Mon. Not. R. Astron. Soc., 407, 2261-2268 (2010/October-1)

Molecular gas in SAURON early-type galaxies: detection of 13CO and HCN emission.

KRIPS M., CROCKER A.F., BUREAU M., COMBES F. and YOUNG L.M.

Abstract (from CDS):

In a pilot project to study the relationship between star formation and molecular gas properties in nearby normal early-type galaxies, we have obtained observations of dense molecular gas tracers in the four galaxies of the SAURON sample with the strongest 12CO emission. We used the Institut de Radio Astronomie Millimetrique (IRAM) 30-m telescope 3- and 1-mm heterodyne receivers to observe 13CO(J = 1-0), 13CO(J = 2-1), HCN(J = 1-0) and HCO+(J = 1-0). We report the detection of 13CO emission in all four SAURON sources and HCN emission in three sources, while no HCO+ emission was found to our detection limits in any of the four galaxies. We find that the 13CO/12CO ratios of three SAURON galaxies are somewhat higher than those in galaxies of different Hubble types. The HCN/12CO and HCN/13CO ratios of all four SAURON galaxies resemble those of nearby Seyfert and dwarf galaxies with normal star formation rates, rather than those of starburst galaxies. The HCN/HCO+ ratio is found to be relatively high (i.e. >1) in the three SAURON galaxies with detected HCN emission, mimicking the behaviour in other star-forming galaxies but being higher than in starburst galaxies. When compared to most galaxies, it thus appears that 13CO is enhanced (relative to 12CO) in three out of four SAURON galaxies and HCO+ is weak (relative to HCN) in three out of three galaxies.

All three galaxies detected in HCN follow the standard HCN-infrared (HCN-IR) luminosity and dense gas fraction-star formation efficiency correlations. As already suggested by 12CO observations, when traced by IR radiation, star formation in the three SAURON galaxies thus appears to follow the same physical laws as in galaxies of different Hubble types. The star formation rate and fraction of dense molecular gas however do not reach the high values found in nearby starburst galaxies, but rather resemble those of nearby normal star-forming galaxies.


Abstract Copyright: © 2010 The Authors. Journal compilation © 2010 RAS

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

CDS comments: In table 3 : IRAS 210293 not identified. It could be IRAS 18293-3413 ( see Aalto et al. 1995, 1995A&A...300..369A )

Simbad objects: 64

goto Full paper

goto View the references in ADS

Number of rows : 64
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 IC 10 rG 00 20 17.33520 +59 18 13.6480   13.6 9.5     ~ 1185 1
2 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
3 NGC 253 SyG 00 47 33.134 -25 17 19.68   8.03   6.94 8.1 ~ 3588 2
4 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
5 IC 1623 IG 01 07 47.24 -17 30 25.0   15       ~ 338 2
6 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
7 NGC 660 Sy2 01 43 02.350 +13 38 44.45   12.02 11.16     ~ 588 2
8 NGC 891 H2G 02 22 32.907 +42 20 53.95 11.08 10.81 9.93 7.86   ~ 1741 2
9 NGC 986 Sy1 02 33 34.3087856832 -39 02 42.128176704 11.72 11.74 10.91 10.10 11.3 ~ 192 2
10 UGCA 39 GiG 02 41 55.092 +59 36 14.73   16       ~ 360 1
11 M 77 Sy2 02 42 40.7091669408 -00 00 47.859690204 9.70 9.61 8.87 10.1 9.9 ~ 4897 2
12 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
13 Z 327-6 H2G 03 48 20.731 +70 07 58.37   14.6       ~ 142 2
14 NGC 1808 Sy2 05 07 42.343 -37 30 46.98 11.05 10.80 9.94 9.36 10.2 ~ 756 3
15 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
16 MCG+10-09-002 Sy2 05 45 47.836 +58 42 03.83   16.0       ~ 110 2
17 NGC 2146 AGN 06 18 37.710 +78 21 25.27 11.67 11.38 10.59     ~ 765 2
18 NGC 2237 Cl* 06 30 36.10 +04 58 50.6           ~ 75 2
19 NGC 2369 Sy1 07 16 37.753 -62 20 37.51   13.23   11.56 12.3 ~ 137 0
20 UGC 4881 IG 09 15 55.5 +44 19 58   14.9       ~ 178 0
21 NGC 2903 AGN 09 32 10.111 +21 30 02.99 10.44 9.75 9.07 8.68   ~ 1204 3
22 NGC 3032 AGN 09 52 08.1524118072 +29 14 10.364182440   13.87 13.28     ~ 260 0
23 M 82 AGN 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 6156 6
24 NGC 3079 Sy2 10 01 57.8789863992 +55 40 47.449758324 11.57 11.54 10.86     ~ 1476 3
25 NGC 3256 Sy2 10 27 51.284 -43 54 13.55   11.83 11.33 10.62 11.9 ~ 920 2
26 NGC 3620 AG? 11 16 04.680 -76 12 58.74   15.9       ~ 78 1
27 M 66 AGN 11 20 15.0 +12 59 29 9.85 9.65 8.92     ~ 1509 4
28 NGC 3628 LIN 11 20 17.018 +13 35 22.16   10.42 9.48 9.22   ~ 853 3
29 NGC 3690B GiP 11 28 31.02 +58 33 40.7   11.8       ~ 635 4
30 NGC 3690NE AGN 11 28 33.07 +58 33 54.2   11.8       ~ 635 4
31 NGC 3982 Sy2 11 56 28.1445516072 +55 07 30.859586652   12.20 11.70 11.18   ~ 588 1
32 NGC 4051 Sy1 12 03 09.6101337312 +44 31 52.682601288   11.08 12.92 9.94   ~ 2270 1
33 NGC 4150 GiG 12 10 33.655 +30 24 05.35 12.72 12.44 11.64     ~ 331 2
34 IRAS 12112+0305 PaG 12 13 45.98880 +02 48 39.9600           ~ 373 0
35 [CGM90] IRAS 12112+0305 NE rG 12 13 46.10735 +02 48 41.4959           ~ 369 0
36 M 106 Sy2 12 18 57.620 +47 18 13.39   9.14 8.41 8.11   ~ 2512 4
37 NGC 4388 Sy2 12 25 46.820 +12 39 43.45 11.91 11.76 11.02     ~ 1433 2
38 NGC 4355 Sy2 12 26 54.6206739120 -00 52 39.421212996   14.21 13.37     ~ 527 2
39 NGC 4459 H2G 12 29 00.0329905416 +13 58 42.826603332   11.6       ~ 567 0
40 NGC 4526 GiC 12 34 03.02853 +07 41 56.9040   10.6       ~ 707 0
41 Z 294-4 Sy1 12 56 14.2341182928 +56 52 25.238373852   14.68 13.84     ~ 2096 3
42 M 64 SyG 12 56 43.696 +21 40 57.57   9.36 8.52     ~ 1010 2
43 NGC 4945 Sy2 13 05 27.279 -49 28 04.44   9.31 14.40 7.55   ~ 1582 2
44 NGC 5033 Sy2 13 13 27.535 +36 35 37.14   11.01 12.03 9.73   ~ 909 1
45 IC 860 LIN 13 15 03.51 +24 37 07.8   14.8       ~ 236 0
46 IC 883 SBG 13 20 35.37960 +34 08 21.8400   14.8       ~ 421 1
47 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
48 M 51 Sy2 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4565 4
49 M 83 SBG 13 37 00.91920 -29 51 56.7400 8.85 8.11 7.52 7.21   ~ 2778 2
50 Z 271-60 Sy2 13 44 42.1883001099 +55 53 13.596220922   15.68 14.91     ~ 958 3
51 Z 49-57 rG 15 13 13.1083645335 +07 13 32.099256087   15.5       ~ 252 1
52 IC 1127 SyG 15 34 57.22396 +23 30 11.6084   14.76 13.88     ~ 3090 4
53 NGC 6240 Sy2 16 52 58.9 +02 24 03   14.31 13.37     ~ 1734 2
54 NGC 6946 H2G 20 34 52.332 +60 09 13.24   10.5       ~ 2661 2
55 NGC 6951 Sy2 20 37 14.1228088488 +66 06 20.049916392   11.64 10.65     ~ 553 2
56 NGC 7172 Sy2 22 02 01.897 -31 52 11.60   12.72 13.61 11.15 25.10 ~ 572 2
57 Z 530-8 GiG 22 04 36.218 +42 19 37.50   15.7       ~ 55 1
58 NGC 7314 Sy2 22 35 46.1985355872 -26 03 01.564993476   11.62 13.11 10.61 11.4 ~ 601 0
59 NGC 7331 LIN 22 37 04.0506038088 +34 24 56.800076508 10.65 10.35 9.48     ~ 1284 2
60 NGC 7469 Sy1 23 03 15.6 +08 52 26 12.60 13.00 12.34     ~ 2253 3
61 NGC 7552 Sy1 23 16 10.66 -42 35 04.7 11.34 11.22 10.57 10.08 11.1 ~ 574 3
62 NGC 7582 Sy2 23 18 23.60 -42 22 13.3 11.62 10.92 10.62     ~ 978 3
63 NGC 7771 GiG 23 51 24.880 +20 06 42.57 13.42 13.08 12.25     ~ 350 3
64 Z 455-59 AGN 23 51 26.731 +20 35 10.22   14.9       ~ 237 0

To bookmark this query, right click on this link: simbad:objects in 2010MNRAS.407.2261K and select 'bookmark this link' or equivalent in the popup menu