MIPS mid-IR and radio measurements of star formation at z ˜ 1 in the Great Observatories Origins Deep Survey

Details MIPS mid-IR and radio measurements of star formation at z ˜ 1 in the Great Observatories Origins Deep Survey MIPS mid-IR and radio measurements of star formation at z ˜ 1 in the Great Observatories Origins Deep Survey

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...207.6306m&link_type=abstract

American Astronomical Society Meeting 207, #63.06; Bulletin of the American Astronomical Society, Vol. 37, p.1247

Astronomy and Astrophysics

Astronomy

Scientific paper

At present, most investigations of high redshift star formation using Spitzer (or ISO) mid-infrared data adopt mid- to far-infrared correlations derived from local galaxy samples. Direct tests of these correlations at high redshift are scarce. In fact IR galaxies at high z may have spectral energy distributions that differ significantly from those of local galaxies, rendering a simple redshifting of local IR SED's inappropriate. The Great Observatories Origins Deep Survey (GOODS), with its multi-wavelength data set, allows for the investigation of how higher redshift IR galaxies compare with galaxies locally. In particular, the work to be presented here uses recently obtained VLA radio data and MIPS 24 micron data to derive the 12 micron versus bolometric IR (LIR) relation for a large sample of galaxies at z ˜ 1. Locally, this tight correlation is well defined, however at z of 1 there appears to be evidence for a population of IR galaxies that does not adhere to this relationship. This poster presents these results, along with a discussion of the nature of IR galaxies at high z, and the implications of using model SED's derived from local IR galaxies at higher z.

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