"How Dust Affects Our View of the Distant Universe"

Speaker: 
Naeen Reddy
Institution: 
UC Riverside
Date: 
Tuesday, October 25, 2011
Time: 
4:00 pm
Location: 
NS2 1201

 


ABSTRACT:

Dust obscuration has a profound influence on our view of distant galaxies, and can shed light on star formation processes at high redshift. I will review recent efforts to examine the dust attenuation and bolometric star formation rates of typical (L*) star-forming galaxies at redshifts z~2, incorporating UV, H-alpha, Spitzer, and Herschel observations. I will discuss the trend of dust obscuration with bolometric luminosity and redshift, and the implications for the metallicity evolution of galaxies. I will conclude by showing how these multi-wavelength indicators of star formation can be used to constrain the star formation histories of high redshift galaxies, and will discuss the implications of these results for the commonly held assumptions in modeling the stellar population of high redshift galaxies.

Host: 
James Bullock