Astronomy 383T - Spring 2014
Seminar in Stellar Astronomy
W 12:00 · RLM 15.216B · 48785
Date
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Speaker
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Title
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Jan 15
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Harriet Dinerstein
University of Texas at Austin
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Organizational meeting.
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Jan 22
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Chris Sneden
University of Texas at Austin
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"NGC 6791: An Old Open Cluster or a Wimpy Globular Cluster?"
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Jan 29
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Harriet Dinerstein
University of Texas at Austin
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"Highlights of the Stellar Plenary Talks at the January 2014 AAS Meeting"
abstract
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Feb 5
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Ivan Ramirez
University of Texas at Austin
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"Searching for our Sun's Long-lost Siblings"
Dynamical information along with survey data on metallicity and age have been used by some authors to find candidates of stars that were born in the cluster where the Sun formed. We have conducted a spectroscopic survey of these stars to determine, using detailed elemental abundance analysis, if they could be true solar siblings. Only one of them satisfies both chemical and dynamical conditions for being a sibling of the Sun. The combination of astrometric data from the Gaia Mission and spectroscopic data from surveys of comparable size such as the ESO-Gaia survey and GALAH will help us find many more of these objects in the near future. We expect that the analysis presented in this work will guide future endeavors in this field and allow us to perform these searches more efficiently. close
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Feb 12
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Thomas Gomez
University of Texas at Austin
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"White Dwarf Spectroscopy: Line Broadening, Asymmetries, Pseudo-Continua, Hot DQs in the lab"
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Feb 19
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Jeffrey Silverman
University of Texas at Austin
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"High-Velocity Features in the Spectra of Type Ia Supernovae"
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Feb 26
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No talk scheduled.
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Mar 5
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Jens Adamczak
University of Texas at Austin
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"Searching for the Progenitors of Weak G-Band Stars: C, O, and Li Abundances across the Hertzsprung Gap"
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Mar 12
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Spring Break: March 10-14. No talk scheduled.
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Mar 19
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No talk scheduled.
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Mar 26
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Julie Hollek
University of Texas at Austin
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"Preliminary Results from an HET Survey for Metal-Poor Stars, and the Origins of CEMP (Carbon-enhanced metal-poor) Stars"
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Apr 2
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Marc Schaeuble
University of Texas at Austin
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"Post main sequence stars in NGC 4590 (M68)"
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Apr 9
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(1) Kevin Gullikson
(2) Sam Harrold
University of Texas at Austin
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(1) "TelFit: A Code to Fit the Telluric Absorption in Astronomical Spectra"
(2) "A Datamining Demo"
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Apr 16
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(1) Keaton Bell
(2) Kevin Jumper
University of Texas at Austin
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(1) "White Dwarf Science from LSST"
(2) "The Asteroseismology of Metal-Polluted DAVs (DAZVs)"
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Apr 23
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Michel Breger and Mike Montgomery
University of Texas at Austin
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joint talk: "First Detection of Resonant Mode Coupling in a Rapidly Rotating Star, and its Implications"
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Apr 30
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(1) Chris Sneden
(2) Gamze Bocek Topcu
University of Texas at Austin and Ege University, Turkey
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(1) "Updates on Atomic and Molecular Data for Spectroscopy"
(2) "Light Element Abundances for Red Giants in Open Cluster NGC 752"
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