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Hard X-ray emission lines from the decay of Ti-44 in the remnant of supernova 1987A
S. A. Grebenev, A. A. Lutovinov, S. S. Tsygankov +1
It is assumed that the radioactive decay of Ti-44 powers the infrared, optical and UV emission of supernova remnants after the complete decay of Co-56 and Co-57 (the isotopes that…
Accurate Localization and Identification of Six Hard X-ray Sources from Chandra and XMM-Newton data
D. I. Karasev, A. A. Lutovinov, M. G. Revnivtsev +1
We present the results of Chandra and XMM-Newton observations for six hard X-ray sources (IGR J12134-6015, IGR J18293-1213, IGR J18219-1347, IGR J17350-2045, IGR J18048-1455, XTE J…
Luminosity Function of High-Mass X-ray Binaries and Anisotropy in the Distribution of Active Galactic Nuclei toward the Large Magellanic Cloud
A. A. Lutovinov, S. A. Grebenev, S. S. Tsygankov
In 2003-2012, the INTEGRAL observatory has performed long-term observations of the Large Magellanic Cloud (LMC). At present, this is one of the deepest hard X-ray (20-60 keV) surve…
Deep Hard X-ray Survey of the Large Magellanic Cloud
S. A. Grebenev, A. A. Lutovinov, S. S. Tsygankov +1
Results of the deep survey of the Large Magellanic Cloud (LMC), performed with the INTEGRAL observatory, are presented. The long exposure (~7 Ms) allowed us to detect twenty one so…
INTEGRAL/IBIS nine-year Galactic Hard X-Ray Survey
R. Krivonos, S. Tsygankov, A. Lutovinov +3
Context. The INTEGRAL observatory operating in a hard X-ray/gamma domain has gathered a large observational data set over nine years starting in 2003. Most of the observing time wa…
Optical Identification of Four Hard X-ray Sources from the Swift All-Sky Survey
A. Lutovinov, R. Burenin, M. Revnivtsev +3
We present the results of our optical identifications of four hard X-ray sources from the Swift all-sky survey. We obtained optical spectra for each of the program objects with the…