2007PASJ...59...55K

Query : 2007PASJ...59...55K

2007PASJ...59...55K - Publ. Astron. Soc. Jap., 59, 55-60 (2007/February-0)

ASTE observations of nearby galaxies: a tight correlation between CO (j=3-2) emission and H alpha.

KOMUGI S., KOHNO K., TOSAKI T., NAKANISHI H., ONODERA S., EGUSA F. and SOFUE Y.

Abstract (from CDS):

begin{HTML}Star formation rates (<I>SFR</I>s) obtained via extinction-corrected Hα are compared to dense gas, as traced by <sup>12</sup>CO (J = 3–2) (J = 3-2) emission at the centers of nearby galaxies, observed with the ASTE telescope. It is found that, although many of the observed positions are dusty, and therefore heavily absorbed at Hα the <I>SFR</I> shows a striking correlation with dense gas in the form of the Schmidt law with an index of 1.0. The correlation is also compared between gas traced by <sup>12</sup>CO (J = 1-0) and the application of an Hα extinction correction. We find that dense gas produces a far-better correlation with <I>SFR</I> in view of the surface density values.

Abstract Copyright: ∼

Journal keyword(s): galaxies: ISM galaxies: spiral ISM: molecules stars: formation

Simbad objects: 22

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Number of rows : 22
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 157 Sy2 00 34 46.7879913696 -08 23 47.273597952   11.0   10.03 10.7 ~ 366 1
2 NGC 520 AGN 01 24 35.07120 +03 47 32.6760 12.41 12.24 11.42     ~ 528 3
3 NGC 891 H2G 02 22 32.907 +42 20 53.95 11.08 10.81 9.93 7.86   ~ 1741 2
4 NGC 925 H2G 02 27 16.913 +33 34 43.97   10.69 10.12 9.55   ~ 818 1
5 NGC 1022 GiG 02 38 32.703 -06 40 38.60 12.33 12.09 11.34     ~ 213 1
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 NGC 1084 EmG 02 45 59.926 -07 34 43.10 11.22 11.59 10.73 10.55 11.1 ~ 386 2
8 NGC 1087 H2G 02 46 25.1550134904 -00 29 55.457857644   11.5   11.4 11.5 ~ 379 0
9 NGC 2146 AGN 06 18 37.710 +78 21 25.27 11.67 11.38 10.59     ~ 765 2
10 NGC 2276 AG? 07 27 14.485 +85 45 16.20   12.3       ~ 393 0
11 NGC 2903 AGN 09 32 10.111 +21 30 02.99 10.44 9.75 9.07 8.68   ~ 1204 3
12 NGC 3079 Sy2 10 01 57.8789863992 +55 40 47.449758324 11.57 11.54 10.86     ~ 1476 3
13 M 95 GiP 10 43 57.7313485800 +11 42 13.301191332 10.71 10.51 9.73 9.48   ~ 1238 2
14 M 66 AGN 11 20 15.0 +12 59 29 9.85 9.65 8.92     ~ 1509 4
15 NGC 4088 AGN 12 05 34.2230093952 +50 32 21.064017876   11.2       ~ 428 1
16 NGC 4102 Sy2 12 06 23.11513 +52 42 39.4160   11.8       ~ 449 1
17 NGC 5906 GiG 15 15 53.687 +56 19 43.86   11.4       ~ 807 0
18 NGC 6946 H2G 20 34 52.332 +60 09 13.24   10.5       ~ 2661 2
19 NGC 7331 LIN 22 37 04.0506038088 +34 24 56.800076508 10.65 10.35 9.48     ~ 1284 2
20 NGC 7479 Sy2 23 04 56.6432243448 +12 19 22.357387020 11.74 11.60 10.85 10.47 9.66 ~ 783 2
21 NGC 7541 GiG 23 14 43.857 +04 32 02.04   12.7       ~ 333 1
22 NGC 7625 AG? 23 20 30.132 +17 13 32.16 13.31 13.23 11.98 11.25   ~ 280 0

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