Physics
Scientific paper
May 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007sptz.prop40251r&link_type=abstract
Spitzer Proposal ID #40251
Physics
Scientific paper
Great progress has been made in understanding the formation of galaxies with the recognition that the distribution of their rest-frame colors is bimodal. However, to date, how galaxies leave the star-forming blue cloud and migrate through the green valley to the red-sequence is unknown. We propose to study the mid-IR spectroscopic properties of sources with spectroscopic redshifts 0.2 < z < 0.6 and 24 micron flux densities S(24) > 2 mJy, spanning the full range of optical color and luminosity, from the blue cloud to the red sequence. The optical counterparts to MIPS 24 micron sources span a range of optical color, suggesting their is a strong dependency of galaxy colors on IR activity. Thus far our efforts to model the IR spectral energy distributions of galaxies have ignored galaxy color. The IRS spectroscopy is crucial for understanding the origin of the IR emission. We will use the IRS data, combined with existing IRAC 3-8 micron and MIPS 24-160 micron data, to (1) study the ionization state of the IR emission, (2) test for the existence of obscured AGN, (3) study how these correlate with the optical spectral properties and colors of the galaxies.
Eisenhardt Peter
Le Floc'h Emeric
Marcillac Delphine
Papovich Casey
Rieke George
No associations
LandOfFree
The Relation Between the IR Emission and Optical Colors of Galaxies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Relation Between the IR Emission and Optical Colors of Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Relation Between the IR Emission and Optical Colors of Galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1748716