[Assistant-faculty] Department of Physics and Astronomy Events for Tofay, Friday, May 13, 2100

["Grant, Gayle" <Gayle Grant tufts edu>]

Good morning:

Events for today Friday, May 13, 2010 are:

1:00 pm
Friday, May 13, 2011
TUFTS UNIVERSITY
Robinson 251 (Knipp Library)
DEPARTMENT OF PHYSICS AND ASTRONOMY
ASTRO-COFFEE DISCUSSION
Jason Tumlinson
Space Telescope Science Institute
will update us on the status of the next-generation space telescope, the 
James Webb Space Telescope.
We will also discuss the short paper:
"Galactic Archeology and the High-redshift Detectability of Milky Way Halo 
Progenitor Galaxies"
by Okrochkov, M., & Tumlinson, J.,
2010, ApJ, 716, L41
http://iopscience.iop.org/2041-8205/716/1/L41/
Coffee will be served


3:00 pm
Friday, May 13, 2011
Anderson Hall, Room 313
TUFTS UNIVERSITY
Physics and Astronomy Colloquium
"Gaseous Halos and Galaxy Evolution: Latest Results from the Hubble Space 
Telescope"
Jason Tumlinson
Space Telescope Science Institute
A long-standing body of theory suggests that gas filling the extended 
halos of galaxies plays a significant role in their formation and 
evolution. The "circumgalactic medium" should contain both the fuel for 
and products of star formation in galaxies, but these regions are 
relatively unexplored owing to their extremely low densities. HST's new 
Cosmic Origins Spectrograph is a major advance in our ability to detect 
and study these diffuse regions of gaseous galaxy halos. I will first 
survey the intellectual history of this subject up to the present time, 
and then describe new results from a large HST/COS program to examine 
systematically the gas flowing in and out of galaxy halos and to determine 
its role in ongoing galaxy evolution. 
Refreshments served at 2:30 in Robinson Hall, Room 251