Colloquia Schedule Spring 2012

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

Jan. 17

"Searching for Clues to the Black Hole-Galaxy Relationship Through Nearby AGN Surveys"

abstract

Lisa M. Winter

University of Colorado at Boulder

host: Shardha Jogee

Jan. 24

Tinsley Visiting Scholar (Stars Group)

"Heavy Element Nucleosynthesis in the Brightest Asymptotic Giant Branch Stars"

abstract

Amanda Karakas

Mt. Stromlo Observatory, Canberra, Australia

host: Harriet Dinerstein

Jan. 31

"Probing the Cosmic History of Star Formation in Galaxies with the Herschel Space Observatory and CCAT"

abstract

Jason Glenn

University of Colorado at Boulder

host: Shardha Jogee

Feb. 7

"New Observational Insights into Cosmic Reionization"

abstract

George Becker

University of Cambridge, Kavli Institute for Cosmology, UK

host: Milos Milosavljevic

Thurs
Feb. 9

"Early Star Forming Galaxies and Reionization"

abstract

Daniel Stark

Steward Observatory, Arizona

hosts: Sally Dodson-Robinson & Shardha Jogee

Feb. 14

"Fueling Cosmic Star Formation: The Molecular Gas Mass Density of the Universe"

abstract

Dominik Riechers

California Institute of Technology

hosts: Shardha Jogee & Milos Milosavljevic

Feb. 21

"Direct Imaging of Exoplanets: Prospects for Comparative Exoplanetology"

abstract

Beth Biller

Max-Planck Institute for Astronomy, Heidelberg, Germany

host: Anita Cochran

Thurs
Feb. 23

"Understanding Galaxy Evolution in the Early Universe"

abstract

Steven Finkelstein

University of Texas at Austin

host: Shardha Jogee

Feb. 28

"Giant Planets Caught at Formation"

abstract

Adam L. Kraus

University of Hawaii, Institute for Astronomy

host: Chris Sneden

Thurs
Mar. 1

"The Dark Art of Detecting and Characterizing Planets by Direct Imaging"

abstract

Thayne Currie

NASA, Goddard Space Flight Center

host: Chris Sneden

Mar. 6

"Molecular spectroscopy of planet-forming regions: A quest to understand the diversity of planets and planetary systems"

abstract

Colette Salyk

National Optical Astronomy Observatory (NOAO)

host: Sally Dodson-Robinson

Mar. 13

Spring Break: 12 - 16 March. No Colloquium scheduled.

Mar. 20

No talk scheduled.

Mar 27

"Dark Matter Properties from the Faintest Galaxies"

abstract

Louis Strigari

Stanford University / Kavli Institute for Particle Astrophysics and Cosmology

host: Karl Gebhardt

Apr. 3
RLM 15.216B
3:30 PM

Antoinette de Vaucouleurs Medalist and Lecturer

"The Carnegie Supernova and Hubble Constant Projects"

I will discuss two ongoing projects: The Carnegie Supernovae Project (CSP), a long-term program using Type Ia supernovae to place constraints on the equation of state for dark energy; and The Carnegie Hubble Project (CHP), a new Spitzer Exploration Program aimed at measuring the Hubble constant to an accuracy of 2%. As part of the CSP, we have been extensively monitoring Type Ia supernovae, obtaining ultraviolet through near-infrared observations at low redshifts (z < 0.08), and measuring the first near-infrared (I-band) Hubble diagram out to redshifts of 0.7. The CHP is calibrating the extragalactic distance scale in the mid-infrared (3.6 microns). Based on a geometric parallax calibration of Cepheids from the Hubble Space Telescope (and in future, from the European parallax satellite, GAIA), and with negligible reddening in the mid-infrared, this program is allowing us to re-measure the Cepheid distances to nearby galaxies, and calibrating Type Ia supernovae and other methods well out into the Hubble flow. I will discuss how this improved accuracy in the Hubble constant, in combination with new experiments like Planck, provides strong constraints on other cosmological parameters, such as the dark energy equation of state, w, and the numbers of neutrino species.

close

Wendy Freedman

Director, Observatories of the Carnegie Institution for Science

host: Dan Jaffe

Apr. 4
ETC 2.136
4:30 PM

Antoinette de Vaucouleurs Medalist and Lecturer (visiting: 4/2-4/8)

Public Talk: "A Journey of Discovery: Our Expanding Universe"

abstract

Wendy Freedman

Director, Observatories of the Carnegie Institution for Science

host: Dan Jaffe

Apr. 10

"The ABCs of Low-Mass Stars"

abstract

Andrew West

Boston University

host: TBD

Apr. 17

"The History of Massive Galaxy Formation as a Cosmological Tool"

abstract

Christopher J. Conselice

University of Nottingham, UK

host: Shardha Jogee

Apr. 24

"Black Holes and Neutron Stars in the Local Universe"

abstract

Krzysztof Belczynski

University of Warsaw and University of Texas, Brownsville

host: Milos Milosavljevic

Wed
Apr. 25

Tinsley Visiting Professor (visiting: 4/23-5/17)

"The First Billion Years of our Universe"

abstract

Andrea Ferrara

Scuola Normale Superiore, Pisa, Italy

host: Volker Bromm

May 1

Texas Cosmology Center Distinguished Visitor

"Constraining Cosmology through the Growth of Structure: New Results from the South Pole Telescope"

abstract

John Carlstrom

University of Chicago

host: Eiichiro Komatsu

Mon
June 18
10 AM

PhD Defense Presentation

"Dark Matter Halos and Stellar Kinematics of Elliptical Galaxies"

abstract

Jeremy Murphy

University of Texas at Austin

Tue
July 24
1 PM

PhD Defense Presentation

"An Experiment in Integrated, Guided-Inquiry Science Classes and Implications for Teaching Astronomy"

abstract

Randi Ludwig

University of Texas at Austin

Tue
Aug 21
2 PM

PhD Defense Presentation

"Tests of the Episodic Mass Accretion Model for Low-Mass Star Formation"

abstract

Hyo Jeong Kim

University of Texas at Austin

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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