Direct constraints on ultra-light boson mass from searches for continuous gravitational waves. (arXiv:1909.08854v1 [astro-ph.HE])
<a href="http://arxiv.org/find/astro-ph/1/au:+Palomba_C/0/1/0/all/0/1">Cristiano Palomba</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+DAntonio_S/0/1/0/all/0/1">Sabrina D'Antonio</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Astone_P/0/1/0/all/0/1">Pia Astone</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Frasca_S/0/1/0/all/0/1">Sergio Frasca</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Intini_G/0/1/0/all/0/1">Giuseppe Intini</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Rosa_I/0/1/0/all/0/1">Iuri La Rosa</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Leaci_P/0/1/0/all/0/1">Paola Leaci</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Mastrogiovanni_S/0/1/0/all/0/1">Simone Mastrogiovanni</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Miller_A/0/1/0/all/0/1">Andrew L. Miller</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Muciaccia_F/0/1/0/all/0/1">Federico Muciaccia</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Piccinni_O/0/1/0/all/0/1">Ornella J. Piccinni</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Rei_L/0/1/0/all/0/1">Luca Rei</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Simula_F/0/1/0/all/0/1">Francesco Simula</a>
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.
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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