Extragalactic Group

Weekly Events

ugc 1810 and ugc 1813

Members of the the extragalactic group work on a broad array of astrophysical questions: What is the expansion history of the Universe and the evolution of dark energy? How do cosmic structures form and evolve? Which objects reionized the Universe and how did they do it? When did the first galaxies form and what what were their properties? How does the baryonic content of galaxies grow and what is the relative importance of different processes, such as major mergers, minor mergers, smooth cold mode accretion, and secular processes? Through what feedback processes are baryons cycled out of galaxies? How do black holes form, grow and impact their host galaxies and surroundings? Where are we with regards to long-standing challenges for Lambda cold dark matter models of galaxy evolution, such as the angular momentum problem, the challenge of bulgeless galaxies, the sub-structure problem, and the cusp-core controversy? How do galaxies evolve both in time and in different environments, such as field, groups, and clusters? Research areas include:

Group members tackle these problems both through state-of-the-art simulations using for instance, the Texas Advanced Computing Center (TACC) and panchromatic ground and space observations from X-ray to radio wavelengths. We are involved in several large imaging and spectroscopic survey of galaxies, including:

  • HETDEX (Hobby-Eberly Telescope Dark Energy Experiment)
  • GEMS (Galaxy Evolution from Morphology and SEDs)
  • GOODS (Great Observatories Origins Deep Survey)
  • GOODS-NICMOS Survey (GNS) of Massive Galaxies
  • STAGES (Space Telescope A901/902 Galaxy Evolution Survey)
  • Coma Cluster ACS Treasury Survey
  • VENGA (The VIRUS-P Exploration of Nearby Galaxies)
  • VIXENS (The VIRUS-P Investigation of the eXtreme ENvironments of Starbursts)

Faculty/Scientists


Taft Armandroff

Director

Research Interests

Dwarf spheroidal galaxies, stellar populations in the Galaxy and nearby galaxies, globular clusters, and astronomical instrumentation.

Publications

ADS | astro-ph

Group Areas

Stars, Extragalactic


Caitlin Casey

Assistant Professor

Publications

ADS | astro-ph

Group Areas

Extragalactic


Keely Finkelstein

Research Associate

Research Interests

Star Formation: Galactic and Extragalactic, Galaxy Formation and Evolution, Astronomy Education

Publications

ADS | astro-ph

Group Areas

Extragalactic, Star Formation (Extragalactic), Star Formation & Protoplanetary Disks


Steven Finkelstein

Assistant Professor

Research Interests

Observations of the High-Redshift Universe; Galaxy Formation and Evolution; Reionization; Chemical Evolution of the Universe.

Publications

ADS | astro-ph

Group Areas

Extragalactic, Reionization Era & First Galaxies, Star Formation (Extragalactic), Stellar Populations, First Stars & Galaxies, HETDEX: Dark Energy Experiment


Karl Gebhardt

Professor

Research Interests

Formation and evolution of galaxies; dynamics of stellar systems; study of supermassive black holes.

Publications

ADS | astro-ph

Group Areas

Extragalactic, Black Holes & AGN, Dark Matter, Instrumentation & Device Development, HETDEX: Dark Energy Experiment


Gary Hill

Research Professor

Research Interests

Observational cosmology; radio galaxies and quasars; astronomical instrumentation.

Publications

ADS | astro-ph

Group Areas

Extragalactic, Instrumentation & Device Development, HETDEX: Dark Energy Experiment


Sungryong Hong

Research Fellow

Publications

ADS | astro-ph

Group Areas

Extragalactic


Shardha Jogee

Department Chair

Research Interests

Galaxy Formation and Evolution; Galaxy Mergers; Star Formation and AGN; Galaxy Evolution in Clusters; Secular Evolution, Bulge Assembly and Barred Galaxies.

Publications

ADS | astro-ph

Group Areas

Extragalactic, Black Holes & AGN, Galaxy Clusters, Galaxy Mergers, Secular Evolution, Star Formation (Extragalactic)


John Kormendy

Professor

Research Interests

Supermassive black holes in galactic nuclei; structure and dynamics of galaxies; secular evolution of galaxies; dark matter; galaxy formation and evolution.

Publications

ADS | astro-ph

Group Areas

Extragalactic, Black Holes & AGN, Dark Matter, Secular Evolution


Hanshin Lee

Research Scientist

Research Interests

Astronomical instrumentation; focal-plane wide-field wavefront sensing; active alignment control of imaging systems; adaptive image compensation/recovery; phase-retrieval.

Publications

ADS | astro-ph

Group Areas

Extragalactic, Instrumentation, Instrumentation & Device Development, GMTNIRS, HETDEX: Dark Energy Experiment, IGRINS


Howie Marion

Research Affiliate - Research Fellow

Publications

ADS | astro-ph

Group Areas

Extragalactic


Kristen McQuinn

Research Scientist

Research Interests

Galaxy Formation and Evolution, Structure and Evolution of Low-mass Galaxies, Chemical Evolution of Galaxies.

Publications

ADS | astro-ph

Group Areas

Extragalactic, Secular Evolution, Star Formation (Extragalactic), Stellar Populations


Eva Noyola

Research Associate

Publications

ADS | astro-ph

Group Areas

Extragalactic


Stephen Odewahn

Research Scientist

Research Interests

Automated image classification for sky surveys and automated morphological classification of galaxies.

Publications

ADS | astro-ph

Group Areas

Extragalactic, Secular Evolution


Sarah Salviander

Research Affiliate - Research Fellow

Research Interests

Demographics and Evolution of Supermassive Black Holes in Quasars and Galaxies.

Publications

ADS | astro-ph

Group Areas

Extragalactic, Black Holes & AGN


Beverley Wills

Research Affiliate - Research Fellow

Research Interests

Active galactic nuclei from radio to x-ray wavelengths.

Publications

ADS | astro-ph

Group Areas

Extragalactic, Black Holes & AGN


Derek Wills

Professor Emeritus

Research Interests

Statistical properties of quasars.

Publications

ADS | astro-ph

Group Areas

Extragalactic

Postdocs


Chao-Ling Hung

Harlan J. Smith Postdoctoral Fellow

Publications

ADS | astro-ph

Group Areas

Extragalactic


Rachael Livermore

Postdoctoral Fellow

Publications

ADS | astro-ph

Group Areas

Extragalactic


Isak Wold

Postdoctoral Fellow

Publications

ADS | astro-ph

Group Areas

Extragalactic


Greg Zeimann

Postdoctoral Fellow

Publications

ADS | astro-ph

Group Areas

Extragalactic

Graduate Students


Andreia Carrillo

Graduate Student

Group Areas

Extragalactic


Jackie Champagne

Graduate Student

Group Areas

Extragalactic


Yi-Kuan Chiang

Graduate Student

Publications

ADS | astro-ph

Group Areas

Extragalactic


Patrick Drew

Graduate Student

Group Areas

Extragalactic


Alex Fitts

Graduate Student

Group Areas

Extragalactic, Theory


Jonathan Florez

Graduate Student

Group Areas

Extragalactic


Briana Indahl

Graduate Student

Publications

ADS | astro-ph

Group Areas

Extragalactic


Jason Jaacks

Graduate Student

Publications

ADS | astro-ph

Group Areas

Extragalactic, Theory


Intae Jung

Graduate Student

Publications

ADS | astro-ph

Group Areas

Extragalactic


Rebecca Larson

Graduate Student

Publications

ADS | astro-ph

Group Areas

Extragalactic


Andrew Leung

Graduate Student

Group Areas

Extragalactic


Sinclaire Manning

Graduate Student

Group Areas

Extragalactic


Sydney Sherman

Graduate Student

Group Areas

Extragalactic


Matt Stevans

Graduate Student

Research Interests

Galaxy Formation and Evolution at High Redshifts; UV Emission from Active Galactic Nuclei (AGNs).

Publications

ADS | astro-ph

Group Areas

Extragalactic, Star Formation (Extragalactic)


Rebecca Tippens

Graduate Student

Group Areas

Extragalactic

23 October 2014
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