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  • Перспективы регистрации рентгеновских вспышек, сопутствующих быстрым радиовсплескам, на телескопе СРГ/еРОЗИТА

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Перспективы регистрации рентгеновских вспышек, сопутствующих быстрым радиовсплескам, на телескопе СРГ/еРОЗИТА

Хохрякова А. Д., Ляпина Д., Попов С. Б.

In this note we discuss the possibility of detecting accompanying  X-ray emission from sources of fast radio bursts with the eROSITA telescope onboard the Spektr-RG observatory.
It is shown that during the four years of the survey program about 300 bursts are expected to appear in the field of view of eROSITA.
About 1\% of them will be detected by ground based radio telescopes.
For the total energy release $\sim~10^{46}$~ergs depending on spectral characteristics and absorption in the interstellar and intergalactic media, an X-ray flare can be detected from distances from $\sim 1$~Mpc (thermal spectrum with $kT=200$~keV and strong absorption) up to $\sim1$~Gpc (power-law spectrum with photon index $\Gamma=2 $ and realistic absorption).
Thus, eROSITA observations might help to provide important constraints on  parameters of sources of fast radio bursts, or may even allow identification of X-ray transient counterparts, which will help to constrain models of fast radio bursts generation.