Research

Extragalactic Group

Black Holes & AGN

Dark Matter

Galaxy Clusters

Galaxy Mergers

Instrumentation

Reionization Era & First Galaxies

Secular Evolution

Star Formation

Stellar Populations

Weekly Events

Members & Publications

Faculty/Scientists

Postdocs

Graduate Students

Extragalactic Group

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:

Faculty/Scientists

Publications


ADS
 |  astro-ph

Niv Drory

Research Scientist

Group Areas

Extragalactic, Instrumentation, Secular Evolution, Stellar Populations, HETDEX: Dark Energy Experiment


ADS
 |  astro-ph

Steven Finkelstein

Assistant Professor

Research Interests

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

Group Areas

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


ADS
 |  astro-ph

Keely Finkelstein

Research Associate/Lecturer

Research Interests

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

Group Areas

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


ADS
 |  astro-ph

Karl Gebhardt

Professor

Research Interests

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

Group Areas

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


ADS
 |  astro-ph

Gary Hill

Research Professor

Research Interests

Observational cosmology; radio galaxies and quasars; astronomical instrumentation.

Group Areas

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


ADS
 |  astro-ph

Shardha Jogee

Professor

Research Interests

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

Group Areas

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


ADS
 |  astro-ph

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.

Group Areas

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


ADS
 |  astro-ph

Hanshin Lee

Research Associate

Research Interests

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

Group Areas

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


ADS
 |  astro-ph

Eva Noyola

Research Associate

Group Areas

Extragalactic


ADS
 |  astro-ph

Stephen Odewahn

Research Scientist

Research Interests

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

Group Areas

Extragalactic, Secular Evolution


ADS
 |  astro-ph

Sarah Salviander

Research Fellow

Research Interests

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

Group Areas

Extragalactic, Black Holes & AGN


ADS
 |  astro-ph

Gregory Shields

Professor (Retired)

Research Interests

Active galactic nuclei; supermassive black holes; chemical evolution of galaxies.

Group Areas

Extragalactic, Black Holes & AGN, Active Galactic Nuclei


ADS
 |  astro-ph

Sarah Tuttle

Research Associate

Research Interests

Intergalactic Medium; Galaxy formation and evolution; Large Scale Structure; Matter distribution in galaxies.

Group Areas

Extragalactic, Instrumentation, Secular Evolution, Star Formation (Extragalactic), Instrumentation & Device Development, HETDEX: Dark Energy Experiment


ADS
 |  astro-ph

Beverley Wills

Research Affiliate-Research Fellow

Research Interests

Active galactic nuclei from radio to x-ray wavelengths.

Group Areas

Extragalactic, Black Holes & AGN


ADS
 |  astro-ph

Derek Wills

Professor

Research Interests

Statistical properties of quasars.

Group Areas

Extragalactic

Postdocs

Publications


ADS
 |  astro-ph

Emily McLinden

Postdoctoral Fellow

Group Areas

Extragalactic


ADS
 |  astro-ph

Jonelle Walsh

Postdoctoral Fellow

Group Areas

Extragalactic


ADS
 |  astro-ph

Tim Weinzirl

Postdoctoral Fellow

Research Interests

Galaxy Formation and Evolution, Galaxy Structure, Secular Evolution, Star Formation and AGN.

Group Areas

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

Graduate Students

Publications


ADS
 |  astro-ph

Yi-Kuan Chiang

Graduate Student

Group Areas

Extragalactic


ADS
 |  astro-ph

Taylor Chonis

Graduate Student

Group Areas

Extragalactic


ADS
 |  astro-ph

Jason Jaacks

Graduate Student

Group Areas

Extragalactic, Theory


ADS
 |  astro-ph

John Jardel

Graduate Student

Research Interests

Galaxy formation and evolution; galaxy dynamics; dark matter; supermassive black holes.

Group Areas

Extragalactic, Black Holes & AGN, Dark Matter


ADS
 |  astro-ph

Intae Jung

Graduate Student

Group Areas

Extragalactic, Theory


ADS
 |  astro-ph

Mimi Song

Graduate Student

Research Interests

Formation and evolution of galaxies, Star formation (Extragalactic), High redshift galaxies.

Group Areas

Extragalactic, Star Formation (Extragalactic)


ADS
 |  astro-ph

Matt Stevans

Graduate Student

Group Areas

Extragalactic


ADS
 |  astro-ph

Nalin Vutisalchavakul

Graduate Student

Group Areas

Extragalactic, Interstellar

Weekly Events: