APEC Seminar (Astronomy - Particle Physics - Experimental Physics - Cosmology)

Speaker: Kenta Hotokezaka (Princeton U)
Title: Interpretation of electromagnetic counterpart to a neutron star merger GW170817
Date (JST): Wed, Mar 07, 2018, 15:40 - 16:40
Place: Seminar Room B
Abstract: Gravitational waves from a neutron star merger, GW170817, were discovered by Advanced LIGO/Virgo. The signal was followed by electromagnetic (EM) signals including a gamma-ray pulse, kilonova/macronova, and non-thermal afterglow.
In this talk, I will discuss interpretations of the observed EM counterparts in multi-wavelengths, a mildly-relativistic merger outflow producing the gamma-ray pulse and radio afterglow, and the r-process mass powering the kilonova.
Finally I will discuss the r-process production in the context of the Galactic chemical evolution.