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arxiv: 1909.08854 · v1 · pith:ASE6VNKBnew · submitted 2019-09-19 · 🌌 astro-ph.HE · gr-qc

Direct constraints on ultra-light boson mass from searches for continuous gravitational waves

Cristiano Palomba , Sabrina D'Antonio , Pia Astone , Sergio Frasca , Giuseppe Intini , Iuri La Rosa , Paola Leaci , Simone Mastrogiovanni
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Andrew L. Miller Federico Muciaccia Ornella J. Piccinni Luca Rei Francesco Simula
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classification 🌌 astro-ph.HE gr-qc
keywords bosongravitationalmassultra-lightblackcloudconstraintsdirect
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\textit{Superradiance} can trigger the formation of an ultra-light boson cloud around a spinning black hole. Once formed, the boson cloud is expected to emit a nearly periodic, long-duration, gravitational-wave signal. For boson masses in the range $(10^{-13}-10^{-11})$ eV, and stellar mass black holes, such signals are potentially detectable by gravitational wave detectors, like Advanced LIGO and Virgo. In this {\it Letter} we present full band upper limits for a generic all-sky search for periodic gravitational waves in LIGO O2 data, and use them to derive - for the first time - direct constraints on the ultra-light scalar boson field mass.

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