Astrophysical Sources of Low-Frequency Gravitational Waves

Marek Biesiada

The first successful detection of gravitational waves (GWs) by ground-based interferometer LIGO announced in 2016, has opened up a new window on the Universe allowing to register catastrophic events involving big masses and strong space-time curvatures. This detection gave also a new boost to the idea of build- ing a space-borne detector (LISA) – sensitive to much lower frequencies (1 mHz – 1 Hz) than ground-based detectors could ever be. Pulsar timing arrays (PTA) are currently searching of GWs at even lower frequencies (1 nHz – 0.01 mHz). In this contribution, I review astrophysical sources of GWs which we expect to register with LISA and PTA.

Proceedings of the Polish Astronomical Society, vol. 7, 21-26 (2018)

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