X-ray upper limits of GW150914 with MAXI

Abstract

We searched for X-ray candidates of the gravitational wave (GW) event GW150914 with Monitor of All-sky X-ray Image (MAXI). MAXI observed the error region of the GW event GW150914 from 4 minutes after the event and covered about 90% of the error region in 25 minutes. No significant time variations on timescales of 1 s to 4 days were found in the GW error region. The $3\sigma$ upper limits for the X-ray emission associated with the GW event in 2--20 keV were 9.5 $\times 10^{-10}$, 2.3 $\times 10^{-10}$, and 0.8 $\times 10^{-10}$ ergs cm${}^{-2}$ s${}^{-1}$ for the time scale of $\sim$ 1000 s, 1 day, and 10 days, respectively. If GW events are associated with short GRBs like GRB 050709, MAXI will be able to detect X-ray emissions from the source.

arXiv comment6 pages, 7 figures

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Cited by in corpus (3)

• Binary Black Hole Mergers within the LIGO Horizon: Statistical Properties and prospects for detecting Electromagnetic Counterparts
• MAXI upper limits of the electromagnetic counterpart of GW170817
• X-ray upper limits of GW151226 with MAXI