J/A+A/462/81 LIR-Tdust relation in galaxies (Chanial+, 2007)
The infrared compactness-temperature relation for quiescent and starburst
galaxies.
Chanial P., Flores H., Guiderdoni B., Elbaz D., Hammer F., Vigroux L.
<Astron. Astrophys., 462, 81-91 (2007)>
=2007A&A...462...81C 2007A&A...462...81C
ADC_Keywords: Galaxies, radio ; Galaxies, IR ; Effective temperatures
Keywords: galaxies: fundamental parameters - galaxies: starburst -
infrared: galaxies - radio continuum: galaxies
Abstract:
IRAS observations show the existence of a correlation between the
infrared luminosity LIR and dust temperature Td in star-forming
galaxies, in which larger LIR leads to higher dust temperature. The
LIR-Td relation is commonly seen as reflecting the increase in
dust temperature in galaxies with higher star formation rate (SFR).
Even though the correlation shows a significant amount of dispersion,
a unique relation has been commonly used to construct spectral energy
distributions (SEDs) of galaxies in distant universe studies, such as
source number counting or photometric redshift determination.
In this work, we introduce a new parameter, namely the size of the
star-forming region rIR and lay out the empirical and modelled
relation between the global parameters LIR, Td and rIR of
IR-bright non-AGN galaxies.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 95 134 Global properties of the 170um sample resolved in
the NVSS (Cat. VIII/65) radio continuum catalog
table5.dat 95 64 Global properties of the 170um sample resolved in
the FIRST (Cat. VII/71) radio continuum catalog
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See also:
VIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998)
VIII/71 : The FIRST Survey Catalog, Version 03Apr11 (Becker+ 2003)
Byte-by-byte Description of file: table[45].dat
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Bytes Format Units Label Explanations
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1- 23 A23 --- Name Source name
25- 31 I7 --- PGC PGC number
33- 34 I2 h RAh Right ascension (J2000)
36- 37 I2 min RAm Right ascension (J2000)
39- 43 F5.2 s RAs Right ascension (J2000)
45 A1 --- DE- Declination sign (J2000)
46- 47 I2 deg DEd Declination (J2000)
49- 50 I2 arcmin DEm Declination (J2000)
52- 55 F4.1 arcsec DEs Declination (J2000)
57- 60 A4 --- MType Morphological type from HYPERLEDA
63- 67 F5.1 Mpc Dist Distance
70- 74 F5.2 [solLum] logLIR Infrared luminosity (1)
76- 80 F5.2 --- logLIR/LB ? Ratio of the IR to B-band luminosities
82- 85 F4.2 [pc] logrIR IR physical radius
87- 90 F4.2 [solLum/pc2] logSIR IR surface brightness
92- 95 F4.1 K Td Effective dust temperature
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Note (1): Infrared luminosity derived from the 60 and 100 flux densities,
by assuming a modified blackbody of emissivity index β=1.3
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 10-Sep-2007