Colloquia Schedule Spring 2015

Colloquia are on Tuesdays (unless otherwise indicated) at 3:30 pm in RLM 15.216B

Jan. 20

Tinsley Visiting Scholar: Planetary Group

"Habitability of Planets Orbiting M Dwarfs"

abstract

Rory Barnes

University of Washington

host: Mike Endl

Jan. 27

"The Elusive and Ionized Gas Surrounding the Magellanic System"

abstract

Kathleen Barger

Texas Christian University

host: Cyndi Froning

Feb. 3

"Probing the Nature of Accretion and Planet Formation in Protoplanetary Disks: Connecting Theory with ALMA Observations"

abstract

Jacob B. Simon

Southwest Research Institute (SwRI)

host: Neal Evans

Feb. 10

"The Large Reservoirs of Gas Around Galaxies"

abstract

Jessica Werk

UCO/Lick Observatory

host: Volker Bromm

Feb. 12
Thursday

Special Colloquium: "Insights into Galaxy Formation from z=15 to the Present Day"

abstract

Peter Behroozi

Space Telescope Science Institute (STScI)

host: John Kormendy

Feb. 17

"Towards a Complete Theory of Lyman-Alpha Transfer in and around Galaxies"

abstract

Mark Dijkstra

University of Oslo: Institute of Theoretical Astrophysics

host: Steve Finkelstein

Feb. 19
Thursday

Special Colloquium: "Three Problems in Trying to Form Galaxies (and how ISM Physics can Save Us)"

abstract

Desika Narayanan

Haverford College

host: Chris Sneden

Feb. 24

"The Local Universe as a Cosmology Laboratory"

abstract

Michael Boylan-Kolchin

University of Maryland

host: Volker Bromm

Feb. 26
Thursday

Special Colloquium: "New Tools for Galactic Archaeology from the Milky Way"

abstract

Gail Zasowski

Johns Hopkins University

host: Adam Kraus

Mar. 3

"Massive Galaxy Growth since Cosmic Noon"

abstract

Stijn Wuyts

Max Planck Institut fur Extraterrestrische Physik

host: Chris Sneden

Mar. 10

Tinsley Visiting Professor

"David vs. Goliath: Exploiting the Black Hole Mass Scale to Better Constrain Accretion Physics"

abstract

Sera Markoff

University of Amsterdam

host: Pawan Kumar

Mar. 17

Spring Break: March 16 - 20: no Colloquium being held this week.

Mar. 24

"MOSFIRE: the Multi-Object Spectrometer for Infrared Exploration at Keck Observatory"

abstract

Ian McLean

University of California, Los Angeles

host: Gregory Mace

Mar. 31

Tinsley Visiting Scholar: Stars Group

"SPHERE: the New High-contrast Imager for the ESO-VLT"

abstract

Raffaele Gratton

INAF - Istituto Nazionale di Astrofisica, Osservatorio Astronomico di Padova, Italy

host: Chris Sneden

Apr. 7

"Title: TBA"

abstract

Speaker: TBD

Affiliation: TBD

host: TBA

Apr. 14

"Title: TBA"

abstract

Adam Leroy

Ohio State University

host: Neal Evans

Apr. 21

"Tracking Planet Footprints in Dusty Disks"

We know that most stars, if not all, were once surrounded by protoplanetary disks. How these young disks evolve into planetary systems is a fundamental question in astronomy. Observations of T Tauri stars (TTS) may provide insights into this question, particularly a subset of TTS with "transitional disks." The spectral energy distributions of these objects feature an infrared "dip," indicating that they have developed holes or gaps in their dust disk. For many transitional disks, the inward truncation of the outer dust disk has been confirmed, predominantly through (sub)millimeter interferometric imaging. Many researchers have posited that these holes and gaps are the "footprints" of planets given that theoretical simulations predict that a young, forming planet will clear the material around itself, leaving behind a cavity in the disk. In this talk, I will review the key observational constraints on the dust and gas properties of transitional disks and examine these in the context of theoretical planet-induced disk clearing models. I will also discuss possibilities for future work in this field, especially in the context of the upcoming ALMA era.

close

Catherine Espaillat

Boston University

host: Adam Kraus

Apr. 28

Tinsley Visiting Scholar: Extragalactic Group

"Title: TBA"

abstract

Stijn Wuyts

Max Planck Institut fur Extraterrestrische Physik

host: Shardha Jogee

May. 5

"Title: TBA"

abstract

Brian Metzger

Columbia University

host: Pawan Kumar

Visitors to the Department of Astronomy can find detailed information and maps on our Visiting Austin Page.

Please report omissions/corrections to: G. Orris at argus@astro.as.utexas.edu.

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