Computer Science
Scientific paper
Aug 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008sptz.prop..493r&link_type=abstract
Spitzer Proposal ID #493
Computer Science
Scientific paper
We propose DDT observations of three recently--discovered, very bright, lensed galaxies. We propose IRAC, 24, and 70 um photometry and IRS LL1 spectra for SDSS1226+2152, an extremely bright UV--selected galaxy at z=2.93. Because this galaxy is a full magnitude brighter in g-band than cB58 (the longstanding Rosetta Stone), its optical spectrum provides a resolved, high-S/N window into stellar populations, star formation, and star formation history at high redshift. Spitzer observations will constrain the stellar mass, measure the bolometric luminosity, and measure the 7.7um aromatic luminosity. Because this galaxy was not discovered until Jan 2008, it could not have been proposed in Cycle 5. We also propose 70um photometry for two UV-selected lensed galaxies at z=1.7 and z=2.73, RCS0327-1326 and SDSS1527+0652. These galaxies were discovered in late 2007. Photometry at 70um will measure the bolometric luminosities of these three galaxies. LL1 spectroscopy for S1226 will accurately measure the 7.7um aromatic luminosity. Together, these observations will enable us to: * determine the spectral energy distributions of Lyman break galaxies; * test whether the strange SED of cB58 is anomalous or typical; * test whether the aromatic--to--bolometric luminosity ratios of these galaxies evolve with redshift (as do IR--selected lensed galaxies); compare near-IR, mid-IR, and optical diagnostics of star formation rate; * and work to understand the relationship between IR--selected and UV--selected star--forming galaxies.
Chen Hsiao-Wen
Gladders Mike
Papovich Casey
Rigby Jane
No associations
LandOfFree
Bolometric Luminosities of 3 New Bright Lensed 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 Bolometric Luminosities of 3 New Bright Lensed Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bolometric Luminosities of 3 New Bright Lensed Galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1064355