2008ApJ...681L..73B

Query : 2008ApJ...681L..73B

2008ApJ...681L..73B - Astrophys. J., 681, L73-L76 (2008/July-2)

The star formation rate-dense gas relation in galaxies as measured by HCN(3-2) emission.

BUSSMANN R.S., NARAYANAN D., SHIRLEY Y.L., JUNEAU S., WU J., SOLOMON P.M., VANDEN BOUT P.A., MOUSTAKAS J. and WALKER C.K.

Abstract (from CDS):

We present observations made with the 10 m Heinrich Hertz Submillimeter Telescope of HCN(3-2) emission from a sample of 30 nearby galaxies ranging in infrared luminosity from 10¹⁰ to 10^12.5 L_☉ and HCN(3-2) luminosity from 10⁶ to 10⁹ K.km/s/pc2. We examine the correlation between the infrared luminosity and HCN(3-2) luminosity and find that the best-fit linear regression has a slope (in log-log space) of 0.74±0.12. Including recently published data from Graciá-Carpio et al. tightens the constraints on the best-fit slope to 0.79±0.09. This slope below unity suggests that the HCN(3-2) molecular line luminosity is not linearly tracing the amount of dense gas. Our results are consistent with predictions from recent theoretical models that find slopes below unity when the line luminosity depends on the average gas density with a power-law index greater than a Kennicutt-Schmidt index of 1.5.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Evolution - Galaxies: ISM - Submillimeter

CDS comments: Table 1 : UGC 51017 is a misprint for ??

Simbad objects: 34

Full paper

View the references in ADS

Number of rows : 34

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 253	SyG	00 47 33.134	-25 17 19.68		8.03		6.94	8.1	~	3588	2
2	NGC 520	AGN	01 24 35.07120	+03 47 32.6760	12.41	12.24	11.42			~	528	3
3	NGC 660	Sy2	01 43 02.350	+13 38 44.45		12.02	11.16			~	588	2
4	NGC 695	AGN	01 51 14.3479513536	+22 34 55.956444960		13.7				~	201	1
5	NAME W 3 OH	HII	02 27 04.1	+61 52 22						~	1064	2
6	M 77	Sy2	02 42 40.7091669408	-00 00 47.859690204	9.70	9.61	8.87	10.1	9.9	~	4897	2
7	IC 342	AGN	03 46 48.514	+68 05 45.98		10.5				~	1579	1
8	NGC 1614	Sy1	04 34 00.027	-08 34 44.57		14.66	13.99			~	697	1
9	ZW VII 31	rG	05 16 46.44456	+79 40 12.4320		15.8				~	159	1
10	NGC 2146	AGN	06 18 37.710	+78 21 25.27	11.67	11.38	10.59			~	765	2
11	UGC 4881	IG	09 15 55.5	+44 19 58		14.9				~	178	0
12	NGC 2903	AGN	09 32 10.111	+21 30 02.99	10.44	9.75	9.07	8.68		~	1204	3
13	M 82	AGN	09 55 52.430	+69 40 46.93	9.61	9.30	8.41			~	6156	6
14	NGC 3079	Sy2	10 01 57.8789863992	+55 40 47.449758324	11.57	11.54	10.86			~	1476	3
15	IRAS 10565+2448	LIN	10 59 18.12811	+24 32 34.7357		15.7				~	302	0
16	NGC 3628	LIN	11 20 17.018	+13 35 22.16		10.42	9.48	9.22		~	853	3
17	NGC 3690	IG	11 28 31.0	+58 33 41		13.19	12.86			~	1015	4
18	NGC 3690B	GiP	11 28 31.02	+58 33 40.7		11.8				~	635	4
19	NGC 3690NE	AGN	11 28 33.07	+58 33 54.2		11.8				~	635	4
20	NGC 3893	GiG	11 48 38.207	+48 42 38.84		11.23	10.67			~	391	1
21	NGC 4414	GiC	12 26 27.1276893168	+31 13 24.626206488	11.12	10.96	10.12			~	593	2
22	Z 294-4	Sy1	12 56 14.2341182928	+56 52 25.238373852		14.68	13.84			~	2096	3
23	IC 883	SBG	13 20 35.37960	+34 08 21.8400		14.8				~	421	1
24	Z 271-60	Sy2	13 44 42.1883001099	+55 53 13.596220922		15.68	14.91			~	958	3
25	IC 1127	SyG	15 34 57.22396	+23 30 11.6084		14.76	13.88			~	3090	4
26	NGC 6240	Sy2	16 52 58.9	+02 24 03		14.31	13.37			~	1734	2
27	LEDA 60189	LIN	17 23 21.96264	-00 17 00.8088		15.1				~	454	0
28	NGC 6701	AGN	18 43 12.429	+60 39 12.13		12.9				~	142	1
29	NGC 6951	Sy2	20 37 14.1228088488	+66 06 20.049916392		11.64	10.65			~	553	2
30	DR 21	SFR	20 39 01.6	+42 19 38						O4.5	1121	0
31	NGC 7331	LIN	22 37 04.0506038088	+34 24 56.800076508	10.65	10.35	9.48			~	1284	2
32	NGC 7469	Sy1	23 03 15.6	+08 52 26	12.60	13.00	12.34			~	2253	3
33	LEDA 90429	SyG	23 39 01.26960	+36 21 08.5896		16.17				~	232	1
34	NGC 7771	GiG	23 51 24.880	+20 06 42.57	13.42	13.08	12.25			~	350	3

To bookmark this query, right click on this link: simbad:objects in 2008ApJ...681L..73B and select 'bookmark this link' or equivalent in the popup menu