Now that gravitational waves have been directly detected, we can begin to use binary black hole mergers to probe strange consequences of strong-field general relativity. Today’s post examines the prospect of detecting an effect called gravitational-wave memory, and considers its potential for helping you get in shape for summer.
Forbich, Berger, and Reid attempt to use a large radio array to detect stellar wobbles induced by orbiting planets at larger separations than are usually probed
The mass of a substellar companion can help determine whether it’s a planet or a brown dwarf. But how can you measure the mass of a companion that you can’t detect directly? Look at the disk!
I went back to school this summer – at 7,000 feet with scorpions and Fourier Transforms.