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.
Here be dragons: Mapping the Mass Gap
The ‘mass gap’ is a mass range bereft of any observed neutron stars or black holes. What can gravitational waves tell us about possible inhabitants of this terra incognita?
Constraining the Hubble Constant with Lensed Gravitational Wave Events
Gravitational waves have been used to measure the Hubble constant before, but the uncertainties were too large to provide competitive constraints. However, using lensed gravitational wave events could be a game-changer.
Hidden monster or spooky cosmological coincidence?
Two binary black hole mergers were detected within 20 minutes of each other. But does this mean that there were four black holes… or just two?
Are pulsars having a (gravitational) wobble?
Wobbling pulsars might reveal gravitational waves from the distant past and future. Find out how in this Astrobite.
(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?