Calendar

Oct
19
Fri
Colloquium: Sanchayeeta Borthakur (Host: Kristian Finlator)
Oct 19 @ 3:15 pm – 4:15 pm
Colloquium:  Sanchayeeta Borthakur (Host: Kristian Finlator) @ BX102

Understanding How Galaxies Reionized the Universe

 Sanchayeeta Borthakur, Arizona State University

Identifying the population of galaxies that was responsible for the reionization of the universe is a long-standing quest in astronomy. While young stars can produce large amounts of ionizing photons, the mechanism behind the escape of Lyman continuum photons (wavelength < 912 A) from star-forming regions has eluded us. To identify such galaxies and to understand the process of the escape of Lyman continuum, we present an indirect technique known as the residual flux technique. Using this technique, we identified (and later confirmed) the first low-redshift galaxy that has an escape fraction of ionizing flux of 21%. This leaky galaxy provides us with valuable insights into the physics of starburst-driven feedback. In addition, since direct detection of ionizing flux is impossible at the epoch of reionization, the residual flux technique presents a highly valuable tool for future studies to be conducted with the upcoming large telescopes such as the JWST.

Observatory Open House
Oct 19 @ 8:00 pm – 9:00 pm
Observatory Open House

Host: James McAteer. Assisted by Laurel Farris, Kristen Luchsinger, and Matthew Varakian

Oct
22
Mon
Astr110 Observatory
Oct 22 @ 9:00 pm – 10:00 pm
Oct
24
Wed
Astr110 Observatory
Oct 24 @ 9:00 pm – 10:00 pm
Oct
29
Mon
Astr110 Observatory
Oct 29 @ 9:00 pm – 10:00 pm
Oct
31
Wed
Astr110 Observatory
Oct 31 @ 9:00 pm – 10:00 pm
Nov
2
Fri
Colloquium: Kate Follette (Host: TBD)
Nov 2 @ 3:15 pm – 4:15 pm
Colloquium: Kate Follette (Host: TBD) @ BX102

Colloquium Title

Kate Follette, Amherst College

Abstract text

Nov
5
Mon
Astr110 Observatory
Nov 5 @ 9:00 pm – 10:00 pm
Nov
7
Wed
Astr110 Observatory
Nov 7 @ 9:00 pm – 10:00 pm
Nov
9
Fri
Colloquium: Laura Chomiuk (Host: TBD)
Nov 9 @ 3:15 pm – 4:15 pm
Colloquium: Laura Chomiuk (Host: TBD) @ BX102

Colloquium Title

Laura Chomiuk, MSU

Abstract text