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SRG/ART-XC, Swift, NICER and NuSTAR study of different states of the transient X-ray pulsar MAXI J0903-531
Sergey S. Tsygankov, Sergey V. Molkov, Victor Doroshenko +6
The results of the broadband spectral and timing study of the recently discovered transient X-ray pulsar MAXI J0903-531 in a wide range of luminosities differing by a factor of ~30…
Relation of cyclotron resonant energy and luminosity in a strongly magnetized neutron star GRO J1008-57 observed by Insight-HXMT
X. Chen, W. Wang, Y. M. Tang +10
Cyclotron line scattering features are detected in a few tens of X-ray pulsars (XRPs) and used as direct indicators of a strong magnetic field at the surface of accreting neutron s…
SRG/ART-XC and NuSTAR observations of the X-ray pulsar GRO J1008-57 in the lowest luminosity state
A. Lutovinov, S. Tsygankov, S. Molkov +6
We report results of the first broadband observation of the transient X-ray pulsar GRO J1008-57 performed in the quiescent state. Observations were conducted quasi-simultaneously w…
X-ray pulsar XTE J1858+034: discovery of the cyclotron line and the revised optical identification
Sergey S. Tsygankov, Alexander A. Lutovinov, Sergey V. Molkov +7
We present results of a detailed investigation of the poorly studied X-ray pulsar XTE J1858+034 based on the data obtained with the NuSTAR observatory during the outburst of the so…