Electromagnetic Radiation from Binary Stars Mediated by Ultralight Scalar

Ya-Ze Cheng, Wen-Hao Wu, Yan Cao

We present the electromagnetic (EM) dipole radiation flux from an eccentric Keplerian binary endowed with scalar charges, in the presence of scalar-photon coupling $\varphi A_{\mu }{A}^{\mu }$ or $ϕF…