Reionization Era & First Galaxies
Members & Publications
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:
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)
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Publications |
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Research Scientist Research Interests Structure and dynamics of galaxies; Pseudobulges, supermassive black holes, and galaxy evolution; Wide-field imaging and surface photometry; Large telescope operations, data handling, and queue scheduling; Astronomical software. Group Areas |
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Assistant Professor Research Interests Observations of the High-Redshift Universe; Galaxy Formation and Evolution; Reionization; Chemical Evolution of the Universe. Group Areas First Stars & Galaxies, Reionization Era & First Galaxies, Stellar Populations, Star Formation (Extragalactic), HETDEX: Dark Energy Experiment |
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Research Associate/Lecturer Research Interests Star Formation: Galactic and Extragalactic, Galaxy Formation and Evolution, Astronomy Education Group Areas Star Formation (Extragalactic), Star Formation & Protoplanetary Disks |
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Professor Research Interests Formation and evolution of galaxies; dynamics of stellar systems; study of supermassive black holes. Group Areas Black Holes & AGN, Dark Matter, HETDEX: Dark Energy Experiment |
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Senior Research Scientist Research Interests Observational cosmology; radio galaxies and quasars; astronomical instrumentation. Group Areas |
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Associate 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 Black Holes & AGN, Secular Evolution, Galaxy Mergers, Galaxy Clusters, Star Formation (Extragalactic) |
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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 |
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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 Instrumentation, HETDEX: Dark Energy Experiment, IGRINS, GMTNIRS |
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Associate Professor Research Interests Massive black holes; the Galactic center; galaxy formation; galaxy clusters; plasma astrophysics. Group Areas Clusters of Galaxies, Gamma-ray Bursts, Theoretical & Computational Astrophysics, Black Holes & AGN |
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Research Scientist Research Interests Automated image classification for sky surveys and automated morphological classification of galaxies. Group Areas |
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Research Fellow Research Interests Demographics and Evolution of Supermassive Black Holes in Quasars and Galaxies. Group Areas |
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Professor Research Interests Active galactic nuclei; supermassive black holes; chemical evolution of galaxies. Group Areas |
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Research Fellow Research Interests Active galactic nuclei from radio to x-ray wavelengths. Group Areas |
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Professor Research Interests Statistical properties of quasars. |
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W.J. McDonald Fellow Research Interests Observations of dual supermassive black holes in merger-remnant galaxies. Group Areas |
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Postdoctoral Fellow |
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Postdoctoral Fellow |
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Postdoctoral Fellow |
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Postdoctoral Fellow Research Interests Intergalactic Medium; Galaxy formation and evolution; Large Scale Structure; Matter distribution in galaxies. Group Areas Instrumentation, Star Formation (Extragalactic), Secular Evolution, HETDEX: Dark Energy Experiment |
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Postdoctoral Fellow |
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Graduate Student Research Interests Secular evolution, origins of massive bulgeless disk galaxies, Galactic/extragalactic high mass star formation, 21 cm High Velocity Clouds. Group Areas Star Formation (Extragalactic), Secular Evolution, Instrumentation |
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Graduate Student |
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Graduate Student Research Interests Astronomical Instrumentation, Properties of Lyman-Alpha Emitters, Stellar Tidal Streams in the Local Volume. Group Areas Instrumentation, Galaxy Mergers, HETDEX: Dark Energy Experiment |
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Graduate Student Research Interests Star Formation: Galactic and Extragalactic, Galaxy Morphology, Galaxy Environments, Galaxy Formation and Evolution, Multi-wavelength Studies of Galaxies Group Areas Star Formation (Extragalactic), Galaxy Mergers, Galaxy Clusters, Star Formation & Protoplanetary Disks |
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Graduate Student Research Interests Galaxy formation and evolution; galaxy dynamics; dark matter; supermassive black holes. Group Areas |
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Graduate Student |
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Graduate Student Research Interests Formation and evolution of galaxies, Star formation (Extragalactic), High redshift galaxies. Group Areas |
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Graduate Student |
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Graduate Student Research Interests Galaxy Formation and Evolution, Galaxy Structure, Secular Evolution, Star Formation and AGN. Group Areas Secular Evolution, Black Holes & AGN, Star Formation (Extragalactic), Stellar Populations, Galaxy Mergers |
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Publications |
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Tues, 3:30 PM, RLM 15.216B
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Wed, 3:00 PM, RLM 15.216B
AST 386S - Extragalactic Seminar
Thurs, 3:30 PM, RLM 15.216B