Astronomy 393S - Fall 2015
Seminar in Interstellar Matter
F 2:00 · RLM 15.216B · Not for credit in Fall 2015
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Date |
Speaker |
Title |
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Aug 28 |
Neal Evans
University of Texas at Austin |
Organizational Meeting.
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Sept 4 |
John Lacy
University of Texas at Austin |
"Molecular Hydrogen in the Galactic Center and Molecular Clouds"
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Sept 11 |
Harriet Dinerstein, Hwihyun Kim, and Kyle Kaplan
University of Texas at Austin |
"Photodissociation Regions at 30" Conference and some on IAU315"
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Sept 18 |
Adam McKay
University of Texas at Austin |
"Comet Update!"
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Sept 25 |
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No meeting scheduled. (TAURS+ BAT-2015 at Texas A&M)
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Oct 2 |
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No talk scheduled.
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Oct 9 |
John Scalo
University of Texas at Austin |
"Why Dense Cores Collapse: A Thermodynamic Model with Definite Predictions"
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Oct 16 |
Samuel Factor
University of Texas at Austin |
"ALMA Observations of Molecular Gas Emission from a Protoplanetary Disk in the Orion Nebula"
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Oct 23 |
Emma Yu
University of Texas at Austin |
"Probing Giant-Planet-Forming Regions with Rare CO Isotopologues, and Updates from Recent disk Conferences"
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Oct 30 |
Stella Offner, Tinsley Scholar (2014-15)
University of Massachusetts, Amherst |
"Toolkits for Turbulence"
abstract |
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Nov 6 |
Marshall Johnson
University of Texas at Austin |
"The McDonald View of a Nearby Planetary System"
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Nov 13 |
Aaron Rizutto
University of Texas at Austin |
"Sco-Cen as an Astrophysical Laboratory"
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Nov 20 |
Ryan Oelkers
Texas A&M University |
"A Wide Angle Search for Hot Jupiters and Pre-Main Sequence Binaries in Young Stellar Associations"
The past two decades have seen a significant advancement in the detection, classification and understanding of exoplanets and binary star systems. The vast majority of these systems consist of objects on the main sequence or the giant branch, leading to a dearth of knowledge of properties at early times (<50 Myr). Only one transiting planet candidate and a dozen binaries are known to exist among pre-main sequence objects, yet these are the systems that can provide the best constraints on stellar and planetary formation models. We have recently completed a photometric survey of nearby (<150 pc) and young (<10 Myr) moving groups with a small aperture telescope. We have discovered over 300 likely pre-main sequence binaries and have ruled out 7 possible transiting Hot Jupiters. I will present the detection and initial follow-up for these systems using the Las Cumbres Observatory Global Telescope Network, McDonald Observatory and Bosque Alegre Astrophysical Station.
close |
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Nov 27 |
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Day after Thanksgiving Holiday. UT Closed. No talks scheduled.
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Dec 4 |
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No talk scheduled.
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