Home   ·   Speakers   ·   Participants   ·   Schedule   ·   Registration   ·   Austin Area   ·   Proceedings



ut astronomy
poster presentations



Poster Presentations


Non-axisymmetric Instabilities in Core Collapse Supernovae
Shizuka Akiyama, University of Texas at Austin
abstract

The H II Region of the First Star
Marcelo A. Alvarez, University of Texas at Austin
abstract

Numerical simulations of the formation of the first stars predict that they formed at redshifts z > 20 in minihalos with masses of about 106 Msun. These first stars produced ionizing radiation that heated the surrounding gas and affected subsequent cosmological structure formation while at the same time contributing to the reionization of the universe. In order to understand these radiative feedback effects in detail we have undertaken 3D simulations of the propagation of an ionization front around massive Population III stars (M ~ 15-500 Msun) that form at a redshift z = 20. We follow the evolution of the H II region created by the star within the density distribution resulting from a cosmological N-body/SPH simulation of primordial star formation. If the star is massive enough the ionization front escapes the halo and propagates into the surrounding intergalactic medium. We describe the structure and evolution of this H II region present, results for the dependence of escape fraction on stellar mass and discuss implications for reionization and subsequent star formation.

Dwarf Galaxies over the last 2 Gyr
Fabio D. Barazza, University of Texas at Austin
abstract

TEXES Observations of Molecular Hydrogen Emission from AB Aur
Martin A. Bitner, University of Texas at Austin
abstract

Low Resolution Phase Resolved Spectra of Polars
Ryan K. Campbell, New Mexico State University
abstract

Weak-line T Tauri Star Disks in the Spitzer c2d Survey of Molecular Clouds: New Constraint on the Timescale for Terrestrial Planet Building
Lucas A. Cieza, University of Texas at Austin
abstract

The Mass Assembly History of Galaxies
Niv Drory, University of Texas at Austin
abstract

Is Sersic Index a Good Pseudobulge Diagnostic?
David B. Fisher, University of Texas at Austin
abstract

The Dark Halo in NGC 821
Amy D. Forestell, University of Texas at Austin
abstract

Mid-IR Spectroscopy of Red 2MASS AGN
Lei Hao, Cornell University
abstract

White Dwarfs and Stellar Evolution
Jason S. Kalirai, University of California at Santa Cruz
abstract

Cosmological Implications of a Solid Upper Mass Limit Placed on DFSZ Axions Thanks To Pulsating White Dwarfs
Agnes B. Kim, University of Texas at Austin
abstract

Ice Absorption toward Background Stars
Claudia Knez, University of Texas at Austin
abstract

Hi-Resolution Spectroscopy of a Volume-Limited Hipparcos Sample within 100 pc
Pey Lian Lim, New Mexico State University
abstract

Low Carbon limits in Type Ia Supernovae
Howie Marion, University of Texas at Austin
abstract

Modeling Swift GRB Prompt Gamma-ray Emissions
Erin M. McMahon, University of Texas at Austin
abstract

Solving the Riddle of Convection with Pulsating White Dwarfs
Michael H. Montgomery, University of Texas at Austin
abstract

Stellar Populations in Bulges of Spiral Galaxies
Bhasker K. Moorthy, New Mexico State University
abstract

Searching for Planets around Pulsating White Dwarf Stars
Fergal Mullally, University of Texas at Austin
abstract

Evidence for a Black Hole in the center of Omega-Cen
Eva Noyola, University of Texas at Austin
abstract

Texas Supernova Search: A Wide Field Search for Nearby Supernovae
Robert M. Quimby, University of Texas at Austin
abstract

Photometry of Near Earth Asteroids at McDonald Observatory
Judit Györgyey Ries, University of Texas at Austin
abstract

The Black Hole-Bulge Relationship for QSOs in the SDSS DR3
Sarah B. Salviander, University of Texas at Austin
abstract

Double-Barred Galaxies in N-body Simulations
Juntai Shen, University of Texas at Austin
abstract

The Extended Structure of the Leo II dSph Galaxy
Michael H. Siegel, University of Texas at Austin
abstract

White Dwarf Mode Identifications and Line Shape Variations
Susan E. Thompson, Colorado College
abstract

Modeling Star Formation with Dust
Andrea Urban, University of Texas at Austin
abstract








 



29 September 2005
Astronomy Program · The University of Texas at Austin · Austin, Texas 78712
prospective student inquiries: studentinfo@astro.as.utexas.edu
site comments: www@www.as.utexas.edu