Northwestern Events Calendar

Dec
4
2018

Astro Seminar: Rodrigo Fernández: Mass ejection, compact objects, and electromagnetic transients

Rodrigo Fernández

When: Tuesday, December 4, 2018
4:00 PM - 5:00 PM Central

Where: Technological Institute, F160, 2145 Sheridan Road, Evanston, IL 60208 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

Description:

Mass ejection is involved in the generation of many types of electromagnetic transient, often in the presence of at least one compact stellar object. A variety of processes can cause mass to become unbound from a gravitational field, including neutrino emission or absorption, magnetic stresses, angular momentum transport, or nuclear processes. In this talk I will discuss two astrophysical situations in which non-trivial mass ejection from the vicinity of a compact object should occur: the accretion disk formed in a neutron star merger, which contributes to the kilonova ejecta, and a failed supernova, in which non-negligible amounts of mass are expelled and interesting transients can result.

 

Speaker: Rodrigo Fernández, University of Alberta

Host: Sasha Tchekhovskoy

 

 

Keywords: Physics, Astronomy, Astrophysics

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