Northwestern Events Calendar

Oct
25
2019

Colloquium: Dr. Priyamvada Natarajan: Black Hole Archaelogy: Tracing the Origin of Early Seed Black Holes

When: Friday, October 25, 2019
4:00 PM - 5:00 PM  

Where: Technological Institute, L211, 2145 Sheridan Road, Evanston, IL 60208 map it

Audience: Faculty/Staff - Student - Public - Post Docs/Docs - Graduate Students

Contact: Yassaman   847.491.7650

Group: Physics and Astronomy Colloquia

Category: Academic

Description:

Nearly all galaxies appear to harbor a central supermassive black hole. The origin and properties of initial black hole seeds that grow to produce the detected supermassive black hole population are poorly constrained at present, as actively growing seeds are not directly observable near their birth epochs. Nevertheless, some unique signatures of seeding do survive and still exist in: local scaling relations between black holes and their galaxy hosts at low-masses; in high-redshift luminosity functions of accreting black holes; and in the total number and mass functions of gravitational wave coalescence events from merging binary black holes. I will describe these newly proposed observables that encapsulate information about seeding and permit disentangling the confounding effects of subsequent growth, merging and evolution that stand to erase the initial conditions. The availability of multi-wavelength, multi-messenger data, with upcoming and proposed missions & observational facilities, we stand to unravel the true nature of early seed black holes.

Seminar Speaker: Dr. Priyamvada Natarajan, Yale University

 Host: Faucher-Giguere

Keywords: Physics, Astronomy, Seminar, Colloquium

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