Astronomy 386S - Fall 2016

Seminar in Extragalactic Astronomy

Th 3:30 · RLM 15.316B · 47620


Steven Finkelstein · RLM 16.210 · (512) 471-1483 · email

Schedule

Aug. 25 Steven Finkelstein
University of Texas at Austin
Organizational Meeting

Sep. 1 11:00 a.m. this week only
Kelly Lockhart
Institute for Astronomy, University of Hawaii - Manoa
Testing Theories of in situ Star Formation in the Nucleus of M31

Sep. 8 No talk scheduled
 

Sep. 15 Steve Finkelstein
The University of Texas at Austin
A Semi-empirical Model of Reionization

abstract


Sep. 22 No talk scheduled

Sep. 29 No talk scheduled

Oct. 6 Anson D’Aloisio
University of Washington
Probing Cosmological Reionization with the High-redshift Lyman-alpha Forest

abstract


Oct. 13 (Talk #1) Jackie Champagne
The University of Texas at Austin
Title: TBA

Oct. 13 (Talk #2) Rebecca Larson
The University of Texas at Austin
A Blind Search for Ly-a Emission from Galaxies at z = 6-8 with Deep HST Grism Spectra

abstract


Oct. 20 Marcelo Alvarez
Canadian Institute for Theoretical Astrophyics, University of Toronto
Fundamental Physics with the Next Generation of Large Scale Structure Surveys

abstract


Oct. 27 No talk scheduled
 

Nov. 3 (Talk #1) Kristy McQuinn
The University of Texas at Austin
JWST Science Case: Resolved Stellar Populations

abstract


Nov. 3 (Talk #2) Patrick Drew
The University of Texas at Austin
Title: TBA

Nov. 10 Irene Shivaei
University of California, Riverside
A Multi-Wavelength Census of Star Formation and Dust in Galaxies at z ~ 2

Redshift of z ~ 2 is an important era in the history of the universe, as it contains the peak of star formation rate density and quasar activity. I will talk about the properties of galaxies during this era from two different, yet complementary, aspects: star formation and mass assembly, and galactic dust enrichment. In this study, I use a wealth of spectroscopic data obtained by the MOSDEF survey. I will introduce the MOSDEF survey, which is a multi-institutional project that uses the near-IR MOSFIRE spectrograph on the Keck I telescope to characterize the gaseous and stellar contents of ~ 1500 rest-frame optically selected galaxies at 1.37 < z < 3.80. Furthermore, I incorporate the mid- and far-IR data from the Spitzer and Herschel telescopes to obtain a complete census of obscured and unobscured star formation in galaxies. Specifically, I explore the star-formation rate and stellar mass relation at z ~ 2, using multi-wavelength star-formation rate tracers (UV, Hα, 24 micron, and far-IR). Moreover, I investigate, for the first time, the variation of the PAH emission at 7.7 micron, traced by Spitzer/MIPS 24 micron, in galaxies spanning a wide range in metallicity at z ~ 2. Our results have important implications for high-redshift studies that adopt 24 micron flux to derive total IR luminosity and star-formation rate.

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Nov. 17 Andreia Carrillo
The University of Texas at Austin
Characterizing dw1335-29, a dwarf galaxy of M83

Nov. 24 Thanksgiving Holiday

Dec. 1 Allison Strom
California Institute of Technology
Star-formation history and chemical enrichment in the early Universe: clues from the rest-UV and rest-optical spectra of high-redshift galaxies

abstract