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"

We show that the ratio of galaxies' specific star formation rates to their host halos' specific mass accretion rates strongly constrains how the galaxies' stellar masses, specific star formation rates, and host halo masses evolve over cosmic time. This evolutionary constraint provides a simple way to probe z>8 galaxy populations without direct observations, and predicts that JWST should see galaxies above 10^8 Msun even to z=15. We also discuss using close galaxy pairs as a probe for major halo mergers at very low redshifts (z<0.06). We find only modest increased quenching associated with major halo mergers, contrary to expectations from gravitational heating or gas starvation models, but consistent with models where quenching results from decoupling of the galaxy with its surrounding gas reservoirs.

close

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

"Title: TBA"

abstract

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

Speaker: TBA

Affiliation: TBD

host: TBD

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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