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Conference Papers Year : 2005

The 2-850 micron SED of starforming galaxies

Anna Sajina
  • Function : Author
Douglas Scott
Herve Dole
  • Function : Author
Mark Lacy
  • Function : Author
Guilaine Lagache


We present preliminary results on a study of the 2--850 micron SEDs of a sample of 30 FIRBACK galaxies selected at 170 micron. These sources are representative of the brightest ~10% of the Cosmic Infrared Background. They are a mixture of mostly local (z<~0.3) starforming galaxies, and a tail of ULIGs that extend up to z~1, and are likely to be a similar population to faint SCUBA sources. We use archival Spitzer IRAC and MIPS data to extend the spectral coverage to the mid-IR regime, resulting in an unprecended (for this redshift range) census of their infrared SEDs. This allows us to study in far greater detail this important population linking the near-IR stellar emission with PAH and thermal dust emission. We do this using a Markov Chain Monte Carlo method, which easily allows for the inclusion of ~6 free parameters, as well as an estimate of parameter uncertainties and correlations.

Dates and versions

hal-00005615 , version 1 (26-06-2005)



Anna Sajina, Douglas Scott, Michel Dennefeld, Herve Dole, Mark Lacy, et al.. The 2-850 micron SED of starforming galaxies. Starbursts: From 30 Doradus to Lyman Break Galaxies, 2005, CAMBRIDGE, UK 6-10 September 2004, United Kingdom. pp.P68. ⟨hal-00005615⟩
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