October 16, 2018

Speaker: Todd Thompson (Ohio State/IAS Junior Visiting Professor)

Contact Information: thompson.1847@osu.edu

Title: Proto-Neutron Star Winds: Supernova Diversity, Magnetars, and Heavy Element Nucleosynthesis

Abstract: The mechanism of the explosion of massive stars remains uncertain. I will discuss aspects of the critical condition for explosion, the observed supernova diversity, and the connection to gamma-ray bursts and super-luminous supernovae. I will focus on the first few seconds after explosion, during the "proto-neutron star" cooling epoch, when a wind driven by neutrino heating emerges from the cooling neutron star into the overlying massive stellar progenitor, powering the explosion. I will describe the physics of proto-neutron star winds, their heavy element nucleosynthesis, and our new work in assessing the role of rotation and magnetic fields in powering GRBs and energetic supernovae, and in generating the r-process nuclei.

Visit Schedule:

Wednesday (17 Oct 2018)

(visitor room: 105A)

  • 10:30 a.m.: Astro Coffee

  • 11:00 a.m.: Kenta Hotokezaka (Peyton 121)

  • 11:30 a.m.: Jeremy Goodman

  • 12:00 p.m.: Goni Halevi (Peyton 009)

  • 12:30 p.m.: Wunch (Peyton 033)

  • 2:00 p.m.: Chang-Goo Kim (Peyton 005)

  • 2:30 p.m.: Jeong-Gyu Kim (Peyton 005)

  • 3:00 p.m.: Viktoriya Giryanskaya (Morozova)

  • 3:30 p.m.: Daniel Lecoanet

  • 4:00 p.m.: Sean Johnson (Peyton 103)

  • 4:30 p.m.: Alwin Mao

  • 5:00 p.m.: jenny

  • 5:30 p.m.: Bruce Draine (Peyton 108)

  • 6:00 p.m.: Matthew Kunz (Peyton 126)

  • 6:30 p.m.: meet in Grand Central to leave for dinner with speaker

Dinner Sign-up (students have priority; 8 MAX) - add your name here:

going to Agricola; reservation at 6:45pm

1. Speaker: Todd Thompson

2. Faculty host: Matthew Kunz (Peyton 126)

3. Postdoc host: Daniel Lecoanet

4. Amy Secunda

5. Goni Halevi

6. Lev Arzamasskiy

7. David Vartanyan

8. Evan Schneider

NO MORE THAN 8 PEOPLE (otherwise it is very difficult to properly interact with the speaker)