A null search for continuous gravitational waves from 34 pulsar-like radio sources places upper limits on strain and disfavors dark photon masses around 10^-13 to 10^-12 eV with kinetic mixing 10^-9 to 10^-7, under specific model assumptions.
Opportunistic search for continuous gravitational waves from compact objects in long-period binaries
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abstract
Most all-sky searches for continuous gravitational waves assume the source to be isolated. In this paper, we allow for an unknown companion object in a long-period orbit and opportunistically use previous results from an all-sky search for isolated sources to constrain the continuous gravitational wave amplitude over a large and unexplored range of binary orbital parameters without explicitly performing a dedicated search for binary systems. The resulting limits are significantly more constraining than any existing upper limit for unknown binary systems, albeit the latter apply to different orbital parameter ranges that are computationally much costlier to explore.
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Search for continuous gravitational wave signals from luminous dark photon superradiance clouds with LVK O3 observations
A null search for continuous gravitational waves from 34 pulsar-like radio sources places upper limits on strain and disfavors dark photon masses around 10^-13 to 10^-12 eV with kinetic mixing 10^-9 to 10^-7, under specific model assumptions.