Colloquia Schedule Fall 2014

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

Sep. 2

"Hot Chromospheres and Flares on Cool and Ultracool Dwarfs"

abstract

Sarah Jane Schmidt

Ohio State University

host: Adam Kraus

Sep. 9

"Let it Collide: An Epic Saga of Star Wars Planets, Planetesimals, and Super Planet Crashes"

abstract

Stefano Meschiari

University of Texas at Austin

host: Adam Kraus

Sep. 16

"The Complex Interplay between Star Formation and Galaxy Evolution from z~0-6"

abstract

Desika Narayanan

Haverford College

host: Steve Finkelstein

Sep. 23

"Compact Galaxies and Super-Massive Black Holes"

abstract

Remco van den Bosch

Max Planck Institute for Astronomy (MPIA), Heidelberg

host: Karl Gebhardt

Sep. 30

"The Architecture and Timing of Planetary Systems"

abstract

Daniel Fabrycky

University of Chicago

host: TBD

Oct. 7

"Who's Afraid of the Big Bad Supermassive Black Hole?"

abstract

Jonathan Trump

Pennsylvania State University

host: Steve Finkelstein

Oct. 14

"Puzzles in the Structure of Disk Galaxies"

abstract

Stephane Courteau

Queen's University, Kingston, Ontario, Canada

host: Karl Gebhardt

Oct. 21

"Galaxy Build-up in the First Gyr: Insights from ultra-deep HST and Spitzer Observations"

The observational frontier of galaxy build-up now lies at only ~450 Myr after the Big Bang, at redshifts z~10-12. While only a handful of galaxies are identified at these early cosmic times so far, I will show how the powerful combination of the Hubble and Spitzer Space Telescopes allows us to probe the assembly of galaxies over 96% of cosmic history. In particular, in this talk I will review the remarkable progress we made over the last few years in studying galaxies within the reionization epoch at z>6. Thanks to the combination of various surveys with the WFC3/IR camera on the HST, it became possible to identify an unprecedented sample of >800 galaxies at z~7-8, and we are now building up the sample sizes at z~9-12. These detections allow us to directly track the evolution of the UV luminosity function and the cosmic star-formation rate density in the first 1 Gyr of cosmic time. At the same time, deep observations with Spitzer/IRAC probe the rest-frame optical light of these galaxies, leading to the first measurement of the stellar mass density out to z~10 and to constraints on the epoch of first star-formation in these systems. I will put these results in the context of cosmic reionization by galaxies and end my talk with a future perspective of the JWST era and beyond.

close

Pascal Oesch

Yale University

host: Steve Finkelstein

Oct. 28

"Title: TBA"

abstract

Speaker: TBD

Affiliation: TBD

host: TBD

Nov. 4

"Title: TBA"

abstract

James Rhoads

Arizona State University

host: Steve Finkelstein

Nov. 11

"Title: TBA"

abstract

Andrea Isella

Rice University

host: Adam Kraus

Nov. 18

"Title: TBA"

abstract

Rebecca Bernstein

Giant Magellan Telescope Observatory

host: Taft Armandroff

Nov. 25

"Title: TBA"

abstract

Speaker: TBD

Affiliation: TBD

host: TBD

Dec. 2

DeVaucouleurs Medalist

DeVaucouleurs Lecture: "The Growth of Supermassive Black Holes and Galaxy Evolution"

abstract

C. Megan Urry

Yale University

host: Shardha Jogee

Dec. 3
ECJ 1.202

DeVaucouleurs Medalist

Public Lecture: "Black Holes, Galaxies and the Evolution of the Universe: An Observer's View"

abstract

C. Megan Urry

Yale University

host: Shardha Jogee

Dec. 9

"Title: TBA"

abstract

Katelyn Allers

Bucknell University, Lewisburg PA

host: Adam Kraus

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.

Next

Spring '15

Current

Fall '14

Previous

Summer '14

Spring '14

Fall '13

Spring '13

Fall '12

Spring '12

Fall '11

Spring '11

Fall '10

Spring '10

Fall '09

Spring '09

Fall '08

Spring '08

Fall '07

Spring '07

Fall '06

Spring '06

Fall '05

Spring '05

Fall '04

Spring '04

Fall '03

Spring '03

Fall '02