Northwestern Events Calendar


Astro Seminar: Rosanne Di Stefano: Mass Transfer within Hierarchical Triples: New Models for Progenitors of Gravitational Mergers and Type Ia Supernovae

Rosanne Di Stefano

When: Tuesday, January 14, 2020
4:00 PM - 5:00 PM Central

Where: 1800 Sherman Avenue, 7th Floor, Evanston, IL 60201 map it

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

Contact: Pamela Villalovoz   (847) 491-3644

Group: Physics and Astronomy Astrophysics Seminars

Category: Academic


We will consider hierarchical triples in which the outer star donates mass to the inner binary.  Some of the infalling mass may be retained by the components of the inner binary and some may be ejected, carrying away angular momentum.  We will focus on applications of this scenario to compact-object binaries with black holes, neutron stars, and white dwarfs in all combinations.

Mass from the third star can change the fate of the inner binary, increase the merger rate, and sometimes transform the nature(s) of the compact accretors.


Speaker: Rosanne Di Stefano, Harvard University


Host: Kyle Kremer



Keywords: Physics, Astronomy, Astrophysics

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