Gravitational-wave background from pulsar timing arrays
Fondo de ondas gravitacionales de baja frecuencia (matrices de púlsares)
- Date
- 2023 · confidence high
- Place
- Green Bank Observatory, West Virginia, United States
- Credited to
- NANOGrav, EPTA, PPTA, InPTA, CPTA Collaboration
- Field
- Cosmos & Earth
What was discovered
Fifteen years of millisecond pulsar timing revealed a 'hum' of gravitational waves with year-long periods, attributed to the population of binary supermassive black holes across the universe.
Data from Green Bank, Arecibo (until 2020), the VLA, Effelsberg, Parkes, FAST and others.
What it led to
- Demographics of binary supermassive black holes
- Nanohertz window in gravitational-wave astronomy