Search Publications

Identification of the ~3.55 keV emission line candidate objects across the sky

Savchenko, D. O.; Iakubovskyi, D. A.

An emission line at the energy ~3.55 keV detected in different galaxies and galaxy clusters has caused numerous discussions in high-energy astrophysics and particle physics communities. To reveal the origin of the line, we analyzed publicly-available observations of MOS cameras from XMM-Newton cosmic observatory - the instrument with the largest s…

The luminosity - spectral index dependence of the X-ray bright Seyfert galaxies

Tugay, A. V.; Sadova, V. A.

X-ray luminosities and spectral indices of 97 bright Seyfert 1 (Sy1) galaxies from the XMM-Newton archive are analysed in this article. Distribution of these values is random, so we conclude that the model of emission should be at least two-parametric. Within the framework of the merging model of active galactic nuclei (AGN), the relation between …