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- Austrian Academy of SciencesAT435 papers
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5 papers · 2 filters
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…
Jets and gamma-ray emission from isolated accreting black holes
M. V. Barkov, D. V. Khangulyan, S. B. Popov
The large number of isolated black holes (IBHs) in the Galaxy, estimated to be 10^8, implies a very high density of 10^-4 pc^-3 and an average distance between IBHs of 10 pc. Our s…
Accretion into black holes with magnetic fields, and relativistic jets
G. S. Bisnovatyi-Kogan, A. S. Klepnev, R. V. E. Lovelace
We discuss the problem of the formation of a large-scale magnetic field in the accretion disks around black holes, taking into account the non-uniform vertical structure of the dis…
SRG/eROSITA prospects for detection of GRB afterglows
I. I. Khabibullin, S. Yu. Sazonov, R. A. Sunyaev
We discuss the potential of the eROSITA telescope on board the \emph{Spectrum-X-Gamma} observatory to detect gamma-ray burst (GRB) X-ray afterglows during its 4-year all-sky survey…
Superorbital modulation of X-ray emission from gamma-ray binary LSI +61 303
M. Chernyakova, A. Neronov, S. Molkov +3
We report the discovery of a systematic constant time lag between the X-ray and radio flares of the gamma-ray binary LSI +61 303, persistent over long, multi-year, time scale. Usin…