Challenges with Testing the No-Hair Theorem
In today’s paper, the authors find that the ringdown frequency and damping time cannot be measured with arbitrary precision, no matter how loud the signal.
Proof that standard sirens work!
Today’s paper discusses how the recent gravitational wave announcement relates to cosmology.
Multi-Messenger Observations of a Binary Neutron Star Merger
A ripple, a flash, and a bang. The holy grail of multi-messenger astronomy as been discovered — a binary neutron star merger captured in gravitational waves and light!
How Plural are Singularities?
This cosmic inventory tells us that our universe has plenty of black holes in stock. Read on to learn what else it says!
An Answer to LIGO’s Low-Mass Black Hole Woes
Yesterday’s announcement of a new LIGO detection brings the total to four confirmed events (and one candidate). Can we responsibly make conclusions about population characteristics from so few data points?
Simple recipe for the final spin of a binary black hole coalescence
The model in this paper gives us insight into the precise way the final black hole spin relates to properties of the individual black holes. Image Source: SXS Gravitational lensing