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Coordinated INTEGRAL and optical observations of SS433
A. M. Cherepashchuk, R. A. Sunyaev, S. N. Fabrika +14
Results of simultaneous {\it INTEGRAL} and optical observations of galactic microquasar SS433 in May 2003 are presented. The analysis of the X-ray and optical eclipse duration and…
Non-pulsing emission from X-ray pulsars
A. Lutovinov, S. Grebenev, R. Sunyaev
Results of GRANAT/ART-P observations of three X-ray pulsars in non-pulsing states are presented: 1) a statistically significant non-pulsing flux with a simple power-law spectrum wa…
Spread of Matter Over a Neutron-Star Surface During Disk Accretion
N. A. Inogamov, R. A. Sunyaev
Disk accretion onto a slowly rotating neutron star with a weak magnetic field gauss is considered in a wide range of luminosities where…
Long-Term Variability of the Hard X-ray Source GRS 1758-258: GRANAT/SIGMA Observations
S. I. Kuznetsov, M. R. Gilfanov, E. M. Churazov +13
The results of GRANAT/SIGMA hard X-ray observations of GRS 1758-258 in 1990-1998 are presented. The source lies at ~5\arcdeg from the Galactic Center and was within the SIGMA field…
GRANAT/ART-P observations of GX3+1: type I X-ray burst and persistent emission
S. V. Molkov, S. A. Grebenev, M. N. Pavlinsky +1
We present results of observations of the known LMXB source GX3+1 with the telescope ART-P on board GRANAT in the fall of 1990. A strong X-ray burst was detected from the source on…
The X-ray Nova GRS 1739-278 near the Galactic Center
K. N. Borozdin, M. G. Revnivtsev, S. P. Trudolyubov +3
The soft X-ray nova GRS 1739-278 flared up in 1996 near the Galactic center. We present the observations of this interesting source, a black-hole candidate, with the instruments on…