Meet the AAS Keynote Speakers: Dr. Brian Metzger
We’ve seen supernovae, but what’s a kilonova? Professor Brian Metzger will tell us all about these high energy events in his talk at #AAS235.
Inconstant, Fine Structures
Using simulations of a Milky Way-sized elliptical galaxy, astronomers study how stellar substructures can tell us about past merger events.
(s)Pinning down the origins of black hole mergers
All of the black hole mergers we’ve seen so far with LIGO/Virgo have surprised us with their mass-spin relationship. Are we misunderstanding stellar collapse? Or is there something even more exotic going on?
A tale of a kilonova
Short gamma-ray bursts, extremely energetic explosions in the Universe, might be caused by the merger of two compact objects. In the two papers we discuss today, the authors test this scenario by looking for light emitted still a few days after the explosion.
Does this disk make my collapse look brighter?
What happens when a neutron star collapses into a black hole? What kind of signal could we expect to see? These theorists have some ideas…