YCAA Seminar - Sukanya Chakrabarti

Event time: 
Tuesday, October 24, 2017 - 2:30am
  • Sukanya Chakrabarti
Speaker Institution: 
  • RIT
Talk Title: 
"Outer HI Disks: Probes of dark matter sub-structure to LIGO sources"
Event description: 
The outer gas disks of spiral galaxies extend far beyond the stellar disk, are cold, have low metal content and a low level of star formation.  Because they are cold and extended, they can serve as ideal “detectors” of the gravitational signatures
of dark-matter dominated dwarf galaxies. I will first review our work in analyzing disturbances 
in outer gas disks to characterize galactic companions.  Since low-metallicity star formation 
can produce more detectable compact binaries than typical star formation, outer HI disks 
may be conducive to producing a rich population of binary black holes.  I will also discuss 
our preliminary work on the contribution of outer HI disks to LIGO’s observable population of 
binary black holes.
Watson Center A-51 See map
60 Sachem Street
New Haven, CT 06511