IRS Observations of Local Lyman Break Analogs

Details IRS Observations of Local Lyman Break Analogs IRS Observations of Local Lyman Break Analogs

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007sptz.prop40444a&link_type=abstract

Spitzer Proposal ID #40444

Computer Science

Scientific paper

UV-selected Lyman Break Galaxies (LBGs) provide one of the best probes of star formation in the early (z > 2) Universe. They represent a phase of intense star formation in the early stages of galaxy evolution. Since LBGs at high redshift are difficult to study, local starburst galaxies are often used as templates to understand the properties of the thousands of LBGs uncovered in deep surveys. However, these local starbursts generally have much smaller luminosities and UV surface brightnesses, or they are much dustier. We have used the UV all-sky imaging survey done with the Galaxy Evolution Explorer (GALEX) to identify for the first time a rare population of low-redshift starbursts with properties remarkably similar to high-redshift LBGs. These compact, UV Luminous Galaxies (UVLGs) resemble LBGs in terms of size, star formation rate, surface brightness, metallicity, kinematics, reddening, and color. In Spitzer cycle 3 we obtained IRAC and MIPS images of this UVLG sample. Here, we propose to obtain IRS spectra of 25 UVLGs in order to measure their dust properties (PAH emission, silicate absorption, MIR slope), search for buried AGN, measure the ionization state of the gas, and understand how the bolometric corrections relate to both the mid-infrared and UV properties. With these spectra we will build the only existing library of MIR spectral templates which can be used to understand the dust properties of high-redshift LBGs. The total time for this program is 33.9 hrs.

Affiliated with

Also associated with

No associations

Rating

IRS Observations of Local Lyman Break Analogs 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 IRS Observations of Local Lyman Break Analogs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and IRS Observations of Local Lyman Break Analogs will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1749301