Astrophysics Seminar

Dr. Ashley Zauderer

Location: 
Kaplun building, Room No. 200
Tue, 26/02/2013 - 12:30 to 13:30

"Radio Observations of Astrophysical Transients: Current Status and Future Prospects

Dr. David Polishook,Massachusetts Institute of Technology

Location: 
Kaplun building, Seminar room
Tue, 03/12/2013 - 15:00 to 16:00

"Observations of rotationally-fissioned asteroids - in search of fresh material": Asteroids that rotate too fast for their weak bodies disintegrate, but the process and its consequences are not clear and different theoretical models have been proposed. We measured near-infrared spectroscopy of 30 asteroids that were rotationally-fissioned in the last ~2 million years, in order to search for spectral indications of “fresh”, young surfaces recently exposed due to the fission of the asteroid.

"Special Astrophysics Seminar: Refusing to Go Quietly: Gamma-Ray Bursts and Their Progenitors"

Location: 
Kaplun building, Room No. 200
Sun, 02/11/2014 - 14:00 to 15:00

Lecturer: Prof. A. Fruchter Affiliation: STScI Additional details of the upcoming Astrophysics' seminars can be found on the following link. ‏האירוע הזה כולל שיחת וידאו ב-Google Hangouts. הצטרף: https://hangouts.google.com/hangouts/_/mail.huji.ac.il/astrophysics?hceid=bWFpbC5odWppLmFjLmlsX2c0czhydDlpcmhwZzRvdGNybWIzZGFqcjdvQGdyb3VwLmNhbGVuZGFyLmdvb2dsZS5jb20.4i45c201rse2b5jggtbp7f1364&hs=121

"Astrophysics Seminar: The nature of collapsar jets"

Location: 
Kaplun building, Room No. 200
Tue, 28/10/2014 - 12:30 to 13:30

Lecturer: Dr. Omer Bromberg Affiliation: Princeton University Abstract: A the major questions in the study of GRBs is the composition of their jets. The answer for this question has important implications on the energy dissipation processes that lead to the emission of the high energy photons. It can also provide clues for the type of the compact object that powers the jet. In this talk I will discuss the two main option for the jet composition: hydrodynamic or Poynting flux dominated jets in the context of long GRBs. I will discuss the propagation of these jets