University of Minnesota
School of Physics & Astronomy

MN Institute for Astrophysics Colloquium

Friday, November 17th 2017
Speaker: Anne Jaskot, Smith College
Subject:  How to Reionize the Universe - Clues from the Low-Redshift Green Pea Galaxies
Refreshments to be served in the MIfA Interaction Area (Tate 285-11) following the colloquium.

Reionization represents a fundamental transition in the universe’s properties, and yet, we know little about how it occurred. The most likely explanation is that Lyman continuum (LyC) radiation escaped into the intergalactic medium from early star-forming galaxies. However, most star-forming galaxies show no signs of LyC escape. Recently, the "Green Pea" galaxies have emerged as the first known star-forming galaxy population where strong LyC escape is common. I will discuss what we are learning from the Green Peas about ways to identify LyC-leaking galaxies, the role of feedback in LyC escape, and the properties of LyC-emitters.

Faculty Host: M. Claudia Scarlata

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