491 citations · 5.1k across the 187 of their papers we have counts for
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Variable pulse profiles of Her X-1 repeating with the same irregular 35d clock as the turn-ons
R. Staubert, D. Klochkov, D. Vasco +4
The accreting X-ray pulsar Her X-1 shows two types of long-term variations, both with periods of ~35 days: 1) Turn-on cycles, a modulation of the flux}, with a ten-day long Main-On…
Peculiarities in the orbital and precessional variability of SS433 from INTEGRAL observations
A. Cherepashchuk, R. Sunyaev, S. Molkov +3
Based on multiyear INTEGRAL observations of SS433, a composite IBIS/ISGRI 18-60 keV orbital light curve is constructed around zero precessional phase . It shows a peculi…
Quasi-spherical accretion in low-luminosity X-ray pulsars: Theory vs. observations
K. Postnov, N. Shakura, A. Kochetkova +1
Quasi-spherical subsonic accretion can be realized in slowly rotating wind-fed X-ray pulsars (XPSRs) at X-ray luminosities <4 10^{36} erg/s. In this regime the accreting matter set…
On the nature of `off' states in slowly rotating low-luminosity X-ray pulsars
N. Shakura, K. Postnov, L. Hjalmarsdotter
We elaborate on a recently proposed model for subsonic quasi-spherical accretion onto slowly rotating pulsars, in which accretion is mediated through a hot quasi-static shell above…
Population Synthesis for Symbiotic X-ray Binaries
G. -L. Lu, C. -H. Zhu, K. A. Postnov +3
Symbiotic X-ray binaries (SyXBs) comprise a rare class of low-mass X-ray binaries. We study the Galactic SyXBs, which we consider as detached binaries composed of low-mass giants a…
Spin period evolution of the X-ray pulsar GX 1+4
A. González-Galán, E. Kuulkers, P. Kretschmar +4
We report on the long-term evolution of the spin period of the symbiotic X-ray pulsar GX 1+4 and a possible interpretation within a model of quasi-spherical accretion. New period m…