IRS and MIPS observations of Starburst galaxies

Details IRS and MIPS observations of Starburst galaxies IRS and MIPS observations of Starburst galaxies

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004sptz.prop...73h&link_type=abstract

Spitzer Proposal ID #73

Physics

Scientific paper

The observational properties of starburst galaxies are dominated by the light emitted by their young stellar population. Many starburst galaxies have high FIR fluxes which are the direct product of heating by the hot stars and re-emission in the 60-100 microns part of the spectrum. Starburst galaxies thus form an ideal laboratory to study star formation and its relationship to the physical properties of a galaxy and it's ISM. A sample of 7 starburst galaxies for which physical properties have been derived from optical spectroscopy will be observed with IRS and MIPS. First, observations at 24 microns with MIPS imaging are planned to estimate fluxes and source position for IRS spectroscopy. Then, low resolution IRS observations will allow studies of the dust, PAH and PDR properties while high resolution spectroscopy will be performed on two bright unresolved sources to study high excitation lines. MIPS imaging at 160 microns is also planned to allow the deepest probing possible of the dust. The properties derived with these observations will be compared with the physical properties derived from the optical observations.

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