Computer Science
Scientific paper
May 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007sptz.prop40038h&link_type=abstract
Spitzer Proposal ID #40038
Computer Science
Scientific paper
A complete, flux-limited sample needing IRS low-resolution observations has been defined for 121 sources chosen from the IRS GTO Bootes Survey and from the Spitzer First Look Survey. Samples are defined to 10 mJy and to 6 mJy at 24u. We have already obtained spectra for 26 galaxies having 24u fluxes > 10 mJy, and GO observations exist for 13 sources in the total sample of 121. Of these 26 sources, 15 show strong PAH emission features characteristic of starbursts, 3 show deep silicate absorption features, and 8 show AGN emission lines or featureless infrared spectra. Redshifts range from 0.017 to 2.41, and continuum luminosities at rest-frame 6u have 2x10^{41} ergs per s < vLv(6u) < 6.3x10^{46} ergs per s., indicating that such a sample covers the full range of infrared-luminous populations of extragalactic sources. New IRS GTO observations are proposed for 33 sources for a total of 23.6h GTO time. These GTO sources will complete the 10 mJy sample for both Bootes and the FLS and initiate a 6 mJy Bootes sample with 12 sources. A companion GO proposal for the remaining 49 sources in the 6 mJy Bootes sample will complete that sample. The proposed GTO and GO observations will assemble enough sources to study unbiased luminosity functions and evolution for infrared-luminous galaxies of various types.
Brand Kate
Houck James R.
Le Floc'h Emeric
Weedman Daniel
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