LIR-Tdust relation in galaxies (

Details LIR-Tdust relation in galaxies ( LIR-Tdust relation in galaxies (

Sep 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007ycat..34620081c&link_type=abstract

VizieR On-line Data Catalog: J/A+A/462/81. Originally published in: 2007A&A...462...81C

Physics

Galaxies: Radio, Galaxies: Ir, Effective Temperatures

Scientific paper

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.
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