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Department of Astronomy Colloquium Series Presents:

Dr. Sanchayeeta Borthakur, Associate Research Scientist, John Hopkins University
Thursday, February 23, 2017
3:40-4:30 PM
411 West Hall Map
Title and Abstract:

Role of Baryon Flows in Galaxy Evolution: Hidden Pathways Connecting Galaxies to the Cosmic Web

Galaxies are not isolated. They constantly exchange matter and energy with their surroundings. For example, galaxy growth and subsequent star formation is maintained by gradual accretion of gas from the cosmic web. In turn, young stars produce vast amounts of energy that may ionize gas in the cosmic web as well as spew out metals in the intergalactic medium (IGM). In this talk, I will discuss the advances we have made in understanding the physics behind baryon flows by studing the properties of the circumgalactic medium (CGM). The CGM is the vast reservoir of faint tenuous gas that extends from the edge of the disks of galaxies out to their virial radii. Therefore, the CGM holds crucial clues to understanding the various inflow and outflow processes. I will present observational evidence that suggests of the pathways via which galaxies acquire gas, condense it into their interstellar medium, form stars, and finally, release matter and energy back into the cosmic web through their CGM.
Building: West Hall
Event Type: Lecture / Discussion
Tags: Astronomy, Physics
Source: Happening @ Michigan from Department of Astronomy, Michigan Institute for Research in Astrophysics