J/ApJ/706/516 Gas content of star-forming galaxies (Pflamm-Altenburg+, 2009)
The fundamental gas depletion and stellar-mass buildup times of star-forming
galaxies.
Pflamm-Altenburg J., Kroupa P.
<Astrophys. J., 706, 516-524 (2009)>
=2009ApJ...706..516P 2009ApJ...706..516P
ADC_Keywords: Galaxies, nearby ; Magnitudes, absolute
Keywords: cosmology: observations - galaxies: evolution -
galaxies: fundamental parameters - stars: formation
Abstract:
Stars do not form continuously distributed over star-forming galaxies.
They form in star clusters of different masses. This nature of
clustered star formation is taken into account in the theory of the
integrated galactic stellar initial mass function (IGIMF) in which the
galaxy-wide initial mass function (IMF) on galaxy-wide scales is
calculated by adding all IMFs of young star clusters. For massive
stars, the IGIMF is steeper than the universal IMF in star clusters
and steepens with decreasing star formation rate (SFR) which is called
the IGIMF effect. The current SFR and the total Hα luminosity of
galaxies therefore scale nonlinearly in the IGIMF theory compared to
the classical case in which the galaxy-wide IMF is assumed to be
constant and identical to the IMF in star clusters. Here we apply for
the first time the revised SFR-LHα relation on a sample of
local volume star-forming galaxies with measured Hα luminosities.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 57 205 Galaxy properties
--------------------------------------------------------------------------------
See also:
III/167 : Atlas of UV spectra of star-forming galaxies (Kinney+ 1993)
J/other/Ser/179.87 : Hα in HII regions of Holmberg IX (Arbutina+, 2009)
J/A+A/476/1161 : Spitzer photometry of M33 (Verley+, 2007)
J/ApJS/164/81 : Spectrophotometry of nearby galaxies (Moustakas+, 2006)
J/AJ/132/271 : SFR of M31 from resolved stars in near-IR (Olsen+, 2006)
J/MNRAS/338/525 : Recent star formation in UCM galaxies (Perez-Gonzalez+,
2003)
Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 12 A12 --- Galaxy Galaxy name
14- 18 F5.2 [10-7W] logLHa Log of Hα luminosity
20- 24 F5.2 [Msun] logMgas Log of gas mass
26- 31 F6.2 mag BMag Absolute B-band magnitude
33- 37 F5.2 [Msun/yr] logSFRc Log of SFR for an constant IMF
39- 43 F5.2 [Msun/yr] logSFRs Log of SFR for the standard IGIMF (2
45- 49 F5.2 [Msun/yr] logSFRm Log of SFR for the minimum IGIMF (2)
51- 52 I2 --- r_logLHa Reference for logLHa (1)
54- 55 I2 --- r_logMgas Reference for logMgas (1)
57 I1 --- r_BMag Reference for BMag (1)
--------------------------------------------------------------------------------
Note (1): Reference as follows:
1 = Kaisin & Karachentsev (2008A&A...479..603K 2008A&A...479..603K);
2 = Karachentsev & Kaisin (2007AJ....133.1883K 2007AJ....133.1883K);
3 = Skillman, Cote & Miller (2003AJ....125..593S 2003AJ....125..593S);
4 = Mateo (1998ARA&A..36..435M 1998ARA&A..36..435M);
5 = van Zee (2001AJ....121.2003V 2001AJ....121.2003V);
6 = Walterbos & Braun (1994ApJ...431..156W 1994ApJ...431..156W);
7 = Dame et al. (1993ApJ...418..730D 1993ApJ...418..730D);
8 = Verley et al. (2007, Cat. J/A+A/476/1161);
9 = Corbelli & Schneider (1997ApJ...479..244C 1997ApJ...479..244C);
10 = Kennicutt et al. (1995AJ....109..594K 1995AJ....109..594K);
11 = Hindman (1967AuJPh..20..147H 1967AuJPh..20..147H);
12 = Westerlund (1997CAS....29.....W 1997CAS....29.....W);
13 = Diehl et al. (2006Natur.439...45D 2006Natur.439...45D),
14 = van den Bergh (1999A&ARv...9..273V 1999A&ARv...9..273V).
Note (2): IGIMF = Integrated Galactic stellar Initial Mass Function
--------------------------------------------------------------------------------
History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 09-Dec-2011