Downsampling speeds up likelihood approximations for simulated LISA data

Downsampling speeds up likelihood approximations for simulated LISA data

Sometime in the mid-2030s, three spacecraft flying in formation around the Sun will start eavesdropping on the gravitational ripples of spacetime itself. The Laser Interferometer Space Antenna, or LISA, will tune in to millihertz gravitational waves — a slice of the cosmic spectrum entirely beyond the reach of ground-based detectors — and among its most […]