2011ApJ...735...56E

Query : 2011ApJ...735...56E

2011ApJ...735...56E - Astrophys. J., 735, 56 (2011/July-1)

A law for star formation in galaxies.

ESCALA A.

Abstract (from CDS):

We study the galactic-scale triggering of star formation. We find that the largest mass scale not stabilized by rotation, a well-defined quantity in a rotating system and with clear dynamical meaning, strongly correlates with the star formation rate in a wide range of galaxies. We find that this relation can be understood in terms of self-regulation toward marginal Toomre stability and the amount of turbulence allowed to sustain the system in this self-regulated quasi-stationary state. We test such an interpretation by computing the predicted star formation rates for a galactic interstellar medium characterized by a lognormal probability distribution function and find good agreement with the observed relation.

Abstract Copyright: ∼

Journal keyword(s): galaxies: formation - galaxies: ISM - galaxies: star formation - instabilities

Simbad objects: 32

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Number of rows : 32
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 NPM1G +40.0002 Sy2 00 08 20.3675391072 +40 37 55.922085984     16.8     ~ 45 0
2 NGC 253 SyG 00 47 33.134 -25 17 19.68   8.03   6.94 8.1 ~ 3336 2
3 NGC 470 GiP 01 19 44.8526263032 +03 24 36.027176544 12.63 12.53 11.78     ~ 275 1
4 2MASX J02513583+4315117 LIN 02 51 35.8187772168 +43 15 11.772126504   18.09 17.36     ~ 56 0
5 NGC 1614 Sy1 04 34 00.027 -08 34 44.57   14.66 13.99     ~ 667 0
6 M 95 GiP 10 43 57.7313485800 +11 42 13.301191332 10.71 10.51 9.73 9.48   ~ 1122 2
7 LEDA 33083 LIN 10 59 18.128 +24 32 34.74   15.7       ~ 274 1
8 NGC 3504 LIN 11 03 11.3 +27 58 21   13.48 12.93     ~ 524 2
9 M 66 GiP 11 20 15.0 +12 59 29 9.85 9.65 8.92     ~ 1386 4
10 NGC 4102 Sy2 12 06 23.0 +52 42 40   11.8       ~ 422 1
11 M 99 H2G 12 18 49.625 +14 24 59.36 10.45 10.44 9.87     ~ 919 2
12 M 61 Sy2 12 21 54.9282582888 +04 28 25.597367184 10.07 10.18 9.65     ~ 998 2
13 M 100 AGN 12 22 54.9299993592 +15 49 20.296257960 10.04 10.05 9.35     ~ 1847 2
14 NGC 4419 LIN 12 26 56.4505296720 +15 02 50.688833388 12.42 12.08 11.16     ~ 402 2
15 M 88 Sy2 12 31 59.1525062448 +14 25 13.148971824   14.33 13.18     ~ 805 1
16 NGC 4535 H2G 12 34 20.3443516704 +08 11 51.908488116   11.1       ~ 617 0
17 NGC 4536 GiP 12 34 27.1 +02 11 18 11.14 11.16 10.55 17.393   ~ 853 3
18 NGC 4647 H2G 12 43 32.542 +11 34 56.89   12.5 12.5     ~ 408 0
19 NGC 4654 GiP 12 43 56.638 +13 07 34.86   11.8       ~ 568 1
20 NGC 4689 H2G 12 47 45.5568088416 +13 45 46.135889100   12.8       ~ 387 0
21 Mrk 231 Sy1 12 56 14.2341182928 +56 52 25.238373852   14.68 13.84     ~ 1988 3
22 NGC 5005 GiP 13 10 56.312 +37 03 32.19   14.67 13.67     ~ 541 2
23 NGC 5033 Sy2 13 13 27.535 +36 35 37.14   11.01 12.03 9.73   ~ 869 3
24 IC 883 SBG 13 20 35.4 +34 08 22   14.8       ~ 400 1
25 APG 220A PoG 15 34 57.22 +23 30 11.4           ~ 57 1
26 IC 4553 SyG 15 34 57.22396 +23 30 11.6084   14.76 13.88     ~ 2961 4
27 APG 220B PoG 15 34 57.28 +23 30 11.3           ~ 45 1
28 NGC 6240 Sy2 16 52 58.9 +02 24 03   14.31 13.37     ~ 1637 2
29 LEDA 60189 LIN 17 23 21.943 -00 17 00.96   15.1       ~ 424 0
30 NGC 6946 H2G 20 34 52.332 +60 09 13.24   10.5       ~ 2529 2
31 NGC 7331 LIN 22 37 04.0506038088 +34 24 56.800076508 10.65 10.35 9.48     ~ 1228 2
32 LEDA 90429 SyG 23 39 01.274 +36 21 08.77   16.17       ~ 216 1

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