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Gravitational Wave Search through Electromagnetic Telescopes
Kohri, Kazunori; Ito, Asuka; Nakayama, Kazunori
We study the graviton-photon conversion in the magnetic fields of the Earth, the Milky Way, and intergalactic regions. Requiring that the photon flux converted from gravitons does not exceed the observed photon flux with telescopes, we derive upper limits on the stochastic gravitational waves in frequency ranges from 107-1035…
Broad-Band X-Ray Analysis of NGC 3227
Newman, Jared; Tsuruta, Sachiko; Liebmann, Andrew C. +2 more
Previously in Project A we carried out analysis of the data obtained by observations of the 1.5 Seyfert galaxy NGC 3227-the two observations performed by XMM-Newton in 2000 and 2006 and six observations by Suzaku in 2008. In the current paper, Project B, our work was extended to joint XMM-Newton and NuSTAR observations in 2016 as well as a NuSTAR …