Colloquia Schedule Spring 2014

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

Jan. 14

No talk scheduled.

abstract

Jan. 21

"The Connection between Star Formation and the Cold Interstellar Medium in Nearby Galaxies"

abstract

Karin Sandstrom

University of Arizona

host: Shardha Jogee

Jan. 28

"The Unusual Eclipser of the Young Star J1407: Moon-forming Circumplanetary Disk?"

abstract

Eric Mamajek

University of Rochester

host: TBA

Feb. 4

"A Calibration of the Stellar-mass Fundamental Plane at z = 0.4 using the Micro-lensing Induced Flux Ratio Anomalies of Macro-lensed Quasars"

abstract

Paul L. Schechter

Massachusetts Institute of Technology

host: Pawan Kumar

Feb. 11

Tinsley Visiting Scholar, Interstellar Matter Group

"Volatiles in Protoplanetary Disks"

abstract

Klaus Pontoppidan

Space Telescope Science Institute (STScI)

host: Neal Evans

Feb. 18

DeVaucouleurs Medalist: COLLOQUIUM

"Connecting Gas to Stars in Galaxies"

abstract

Robert C. Kennicutt, Jr.

University of Cambridge, UK

host: Neal Evans

Feb. 19
CPE 2.208
4:00 PM

DeVaucouleurs Medalist: PUBLIC LECTURE

"The Hidden Universe Revealed"

abstract

Robert C. Kennicutt, Jr.

University of Cambridge, UK

host: Neal Evans

Feb. 25

"The Seeds of Massive Galaxies"

abstract

Sadegh Khochfar

University of Edinburgh

host: Shardha Jogee

Mar. 4

"Our Galactic Supermassive Black Hole Sgr A*: The Ideal Testbed for Theories of Accretion and Black Hole Life Cycles"

abstract

Sera Markoff

University of Amsterdam

host: Pawan Kumar

Mar. 11

Spring Break: 10-14 March: No talk scheduled.


Mar. 18

"Rest-frame Optical Spectra: A Window into Galaxy Formation at z~2"

abstract

Alice E. Shapley

University of California, Los Angeles

host: Steve Finkelstein

Mar. 25

Tinsley Visiting Scholar, Stars Group

"Hunting the First Generations of Stars and Galaxies"

abstract

Anna Frebel

Massachusetts Institute of Technology

host: Fritz Benedict

Apr. 1

"Shadows of Their Future Selves: Accretion and Obscuration in Young Stellar Objects"

abstract

Kevin R. Covey

Lowell Observatory

host: Adam Kraus

Apr. 8

"Head in the Clouds: Decoding the Spectral Features Produced by Brown Dwarf and Exoplanent Atmospheres"

abstract

Kelle Cruz

Hunter College/AMNH

host: Adam Kraus

Apr. 15

"Hunting the First Galaxies with Gravitational Lensing"

The first galaxies are a frontier of extragalactic astronomy. How and when did they form, and how did they contribute to reionization? Answers to these questions require both census taking and detailed studies of individual galaxies. Hubble and Spitzer have revealed galaxies well into the epoch of reionization (z > 6). Gravitational lensing has enabled relatively efficient discovery of galaxies at the highest redshifts. The Cluster Lensing And Supernova survey with Hubble (CLASH) Multi-Cycle Treasury program revealed galaxies as distant as MACS0647-JD at z ~ 10.8 (420 Myr). Upcoming HST WFC3/IR grism spectroscopy should help confirm this z ~ 11 discovery, and deep Spitzer imaging will constrain the galaxy's age, stellar mass, and rest-frame UV slope (beta). Searches for additional z ~ 10 candidates have so far revealed fewer than expected. This z ~ 10 deficit suggests more rapid buildup in galaxy numbers and cosmic star formation rate density during the first 600 million years than at later times. Improved statistics to confirm or controvert this deficit are forthcoming from the Frontier Fields program. The first two strongly lensed Hubble Frontier Fields images are now our deepest images of the universe to date, probing nJy sources. I will present predictions and early results from this program. I will also show expectations for future wide field space-based surveys with Euclid and WFIRST-AFTA. These programs will significantly advance our understanding of galaxy evolution in the first billion years while providing promising targets for more detailed study with JWST.

close

Dan A. Coe

Space Telescope Science Institute (STScI)

host: Steve Finkelstein

Apr. 22

Tinsley Visiting Professor

Title: TBA

abstract

Mark E. Dickinson

National Optical Astronomy Observatory (NOAO)

host: TBA

Apr. 23
Wed
3 PM

Tinsley Visiting Scholar, Exgal Group

"MaNGA: Mapping Nearby Galaxies at Apache Point Observatory An IFU Survey of 10,000 Galaxies"

abstract

Kevin A. Bundy

University of Tokyo, IPMU

host: Niv Drory

Apr. 25
Fri
2 PM

Tinsley Visiting Scholar, Planets Group

Title: TBA

abstract

Gaspar Bakos

Princeton University

host: Mike Endl

Apr. 29

Title: TBA

abstract

Milos Milosavljevic

University of Texas at Austin

host: TBA

May 6

Title: TBA

abstract

Eugene Oks

Auburn University

host: Don Winget

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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