Events Daily

Tuesday, October 16, 2018
      

Modjaz Group Mtg
Event Type: Modjaz Group Mtg
Time: 11:00 AM - 12:30 PM
Location: 726 Broadway, 901, Sm Conf

Electron-positron pair creation in pulsars
Andrey Timokhin, NASA
Event Type: Astro Seminar
Time: 2:00 PM - 3:15 PM
Location: 726 Broadway, 940, CCPP Seminar
Description: Pulsars are among the most extreme objects in the universe, where physical processes work in regimes of extreme densities as well as gravitational and electromagnetic field strengths. It is widely agreed upon that pulsar activity is intimately connected to copious generation of electron-positron pairs in the magnetosphere - a rapidly rotating magnetized neutron star is active as pulsar only as long as it can create pairs. Here I briefly overview recent progress in theoretical studies of pulsar magnetospheres and report on the most recent results of self-consistent modeling of pair creation in pulsars. I discuss the implication of these results for our understanding of the physics of pulsars and Pulsar Wind Nebulae.

Cosmic strings and primordial black holes
Alex Vilenkin, Tufts University
Event Type: Special Seminar
Time: 3:30 PM - 5:00 PM
Location: 726 Broadway, 940, CCPP Seminar
Description: Cosmic strings and primordial black holes (PBHs) commonly and naturally form in many scenarios describing the early universe. If both strings and PBHs are present, their interaction leads to a range of interesting consequences.