The Section of Astrophysics, Astronomy and Mechanics of the Department of Physics of the National and Kapodistrian University of Athens offers a series of virtual Colloquia in Astrophysics that started in October 2020.
Organizer: Prof. Maria Petropoulou
Speaker: Prof. Ersin Göğüş (Sabanci University, Turkey)
Speaker info: link
Title: The Strongest Magnets in the Milky Way and Beyond
Abstract: Magnetars are isolated neutron stars that possess the strongest magnetic fields in the Universe. The most striking characteristic of magnetars is their emission of energetic bursts -- brief events lasting only a fraction of a second yet typically releasing energies exceeding 10^40 erg. On rare occasions, magnetars produce giant flares, which exhibit distinctive morphologies and release energy reaching or even surpassing 10^44 erg.
This talk will provide an overview of magnetar bursts detected mostly with the Gamma-ray Burst Monitor on board Fermi Gamma-ray Space Telescope, with a particular focus on a prolific magnetar: SGR J1935+2154. This magnetar has emitted short radio bursts, including the first ever Galactic fast radio burst (FRB). There will also be a review of recent observations of magnetar giant flares from nearby galaxies.
We are looking forward to your participation!
You can also follow us on Facebook at Astro UoA Colloquia.
Note: In person colloquia will take place at 4:00 PM (EET) at the Seminar room of the Section of Astrophysics at NKUA.
Connection information:
https://uoa.webex.com/uoa/j.php?MTID=m300a2a81022dd533d49b66e3459530f9
Wednesday, December 17, 2025 4:00 PM | 2 hours | (UTC+02:00) Athens, Bucharest
Meeting number: 2780 635 5361
Password: h9zJwQzJE64