Date:
Friday, April 25,
2008
Title: Long Term Variability in X-Ray Binaries
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Speaker: Dr. Padi Boyd (VU ’87)
From: Astroparticles Physics Laboratory Goddard Space Flight Center
Time/Place: Reception 3:30 pm in Mendel 455 -- Lecture 4:00 pm in
Mendel 103
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Date:
Thursday, April 17,
2008
Title: Active Galactic Nuclei in Clusters of Galaxies |
Speaker: Quyen Nguyen Hart (VU ’96)
From: Center for Astrophysics & Space Science, University of Colorado at Boulder
Time/Place: Reception 4:00 pm in Mendel 455 -- Lecture 4:30 pm in
Mendel 341
Clusters of galaxies are the largest gravitationally bound systems in the universe. These dense systems are unique locations
to study galaxy formation and evolution. In particular, we investigate how cluster environments affect the nature of active galactic
nuclei (AGN). I will present a multi-wavelength study to locate these rare cluster AGN, categorize their host galaxies, and estimate
their impact on solving the “cooling flow” problem in clusters of galaxies.
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Date:
Friday, March 14,
2008
Title: Results on White Dwarfs, Brown Dwarfs and Extrasolar Planets |
Speaker: Dr. James Liebert
From: Steward Observatory, University of Arizona
Time/Place: Reception 3:30 pm in Mendel 455 --
Lecture 4:00 pm in Mendel 103
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Date:
Friday, February 15,
2008
Title: X-ray Properties of the First Unbiased Sample of Local AGNs |
Speaker: Lisa Winter
From: University of Maryland
VU Class of 2003
Time/Place: Reception 3:30 pm in Mendel 455 --
Lecture 4:00 pm in Mendel 103
The SWIFT Burst Alert Telescope (BAT), when not
focused on a Gamma-ray outburst, conducts an all-sky survey in the
14-195keV band. After the first nine months, the BAT has detected a
sample of 153 local (< z > = 0.03) AGN at a flux limit of a few times 10-11
erg/s/cm-2. (Tueller et & al. 2007) Since the AGN were
detected at very high X-ray energies, they are an unbiased sample toward
column densities below 1025 cm-2. The paper will
present results from an ongoing study of the X-ray and optical
properties of this AGN sample.
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Date: Wednesday, December 12,
2007
Title: Resolving Complex M Supergiant Atmospheres: The Hot and the Cold
of It |
Speaker: Dr. Graham M. Harper
From: Center for Astrophysics and Space Astronomy University of Colorado
Time/Place: Reception 4:00 pm in Mendel 455 --
Lecture 5:00 pm in Mendel 103
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Date:
Monday, December 3, 2007
Title: Meteorite Density and Asteroid Structure: Are Asteroids Fluffy? |
Speaker: Dr. Guy Consolmagno, S. J.
From: Vatican Observatory
Time/Place: 4:30PM Lecture in Mendel 103 -- Reception 4:00PM in Mendel 455
Meteorite density and porosity measurements and the recent reliable
determination of asteroid densities allows a comparison to the densities
of the meteorites believed to come from the asteroid belt. These data
are leading us to a new and sometimes surprising understanding of the
environment around our infant sun and its nascent solar system. The
implications range from strategies for defending Earth from rogue
asteroids to the definition of Pluto and similar bodies as “dwarf
planets.”
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Date:
Friday, November 19, 2007
Title: A Synthesis of Fundamental Issues in the formation and Early Evolution of Low-Mass Stars and Brown Dwarfs
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Speaker: Dr. Keivan Stassun
From: Vanderbilt University
Time/Place: 5:00PM Location Mendel 103 -- Reception 4:30PM in Mendel 455
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Date:
Friday, November 16, 2007
Title: Dwarfs and Extrasolar Planets
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Speaker: Dr. James Liebert
From: Observatory, University of Arizona
Time/Place: 4:00PM Location Mendel 103 -- Reception 3:30PM in Mendel 455
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Date:
Friday, November 9, 2007
Title: Hubble Space Telescope Observations of the Light Echo around V838
Monocerotis
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Speaker: Dr. Howard Bond
From: Space Telescope Science Institute
Time/Place: 4:00PM Location Mendel 103 -- Reception 3:30PM in Mendel 455
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Date:
Friday, November 2, 2007
Title: Everything you ever wanted to know about parallel processing |
Speaker: Dr. Andrj Prsa
From: Villanova Astronomy & Astrophysics
Time/Place: 1:30PM Location Mendel 341 -- Reception after the talk in Mendel 455
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Date:
Friday April 20,2007
Title: Mars, Venus...and what's Life got to do with it |
Speaker: Dr. Dirk Schulze-Makuch
From: Dept of Earth and Environmental Sciences, Washington
State University
Time/Place: 4:30PM Location Mendel 102 -- Refreshments
4:00PM 4th Floor Mendel, Room 455
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Date:
Tuesday April 3,2007
Title: Magnetic Activity in M Dwarf Stars: Observations
With SDSS
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Speaker: John Bochanski VU Class of 02, PhD Candidate
From: Dept of Astronomy and Astrophysics University of
Washington
Time/Place: 5:00PM Location Mendel 103 -- Refreshments
4:30PM 4th Floor, Mendel 455
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Date: Friday March 30,2007
Title: Worlds in Transit
Speaker: Dr. Kailash Sahu
From: Space Telescope Science Institute, Baltimore
Time/Place: 4:30PM Location Mendel 103 -- Refreshments
4:00PM 4th Floor, Mendel 455
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Date: Friday February 23, 2007
Title: Artificial Intelligence Approaches to Modeling
Eclipsing Binary Stars
Speaker: Dr Andrej Prsa
From: University of Ljubljana, Slovenia / Villanova
University
Time/Place: 4:30PM Location: 103 Mendel-- Refreshments
4:00PM 4th Floor, Mendel 455
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Date: Friday December 1, 2006
Title: Novae, Supernovae and Hypernovae: Nature's Threee
Greatest Explosions
Speaker: Dr Edward Sion
From: Villanova University
Time/Place: 12:00-1:30PM Location: Fedigan Room SAC--
RSVP 610-519-7325
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Date: Friday December 1, 2006
Title: Weighting Neutron Stars
Speaker: Dr David Nice
From: Bryn Mawe College
Time/Place: 3:00PM Location 213 Mendel-- Refreshments
2:30PM
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Date: Friday November 17, 2006
Title: The Kepler Mission: Searching for Earthlike
Planets
Speaker: Dr Yoji Kondo
From: NASA
Time/Place: 4:00PM Location 341 Mendel-- Refreshments
3:30PM 4th Floor Mendel
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Date: Friday November 10, 2006
Title: Dark Energy or Worse
Speaker: Dr Sean Carroll
From: Dept of Physics, California Institute of Technology
Time/Place: 5:00PM Location 103 Mendel-- Refreshments
4:30PM 4th Floor Mendel
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Date: Tuesday April 25, 2006
Title: X-Ray Emissions from Massive Stars
Speaker: Dr David Cohen
From: Dept of Physics and Astronomy, Swarthmore College
Time/Place: 5:00PM Location 103 Mendel-- Refreshments
4:30PM 4th Floor Mendel
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Date: Wednesday April 19, 2006
Title: Turbulent Mixing of Metals by Massive Stars in the
ISM
Speaker: Dinshaw S. Balsara
From: University of Notre Dame
Time/Place: 5:00PM Location 103 Mendel-- Refreshments
4:30PM 4th Floor Mendel
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Date: Friday March 17, 2006
Title: Accretion in Magnetic Cataclysmic Variables:
Models and Observations
Speaker: Dr Kinegunda Belle
From: Los Alamos National Laboratory
Time/Place: 5:00PM Location 103 Mendel-- Refreshments
4:30PM 4th Floor Mendel
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Date: Friday February 17, 2006
Title: Classical Novae: Things That Go Pop in The Night
Speaker: Dr. Karen Vanlandingham
From: West Chester University
Time/Place: 4:00PM Location 103 Mendel-- Refreshments
3:30PM 4th Floor Mendel
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Date: Wednesday December 7, 2005
Title: Evolution of Close, Interacting Binaries: Magnetic
vs Non-Magnetic
Speaker: Dr. Steve B. Howell
From: WIYN Observatory and NOAO
Time/Place: 4:00PM Location 341 Mendel-- Refreshments
3:30PM 4th Floor Mendel
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Date: Friday November 18, 2005
Title: Solar Surface Convection and Helioseismology
Speaker: Professor Manfred Cuntz
From: University of Taxas at Arlington
Time/Place: 4:00PM Location 103 Mendel-- Refreshments
3:45PM 4th Floor Mendel
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