Kolesnikov D.A.; Shakura N.I.; Postnov K.A.; Volkov I.M.; Bikmaev I.F.; Irsmambetova T.R.; Staubert R.; Wilms J.; Irtuganov E.; Golysheva P.Y.; Shugarov S.Y.; Nikolenko I.V.; Trunkovsky E.M.; Schönherr G.; Schwope A.; Klochkov D.
(2020)
© 2020 The Author(s). The X-ray binary Her X-1 consists of an accreting neutron star and the optical component HZ Her. The 35-d X-ray superorbital variability of this system is known, since its discovery in 1972 by the ...