Zobrazeno 1 - 10 of 16 pro vyhledávání: '"K. A. Postnov"'
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Akademický článek
WHY NS AND BH MASS DISTRIBUTION IS BIMODAL?
Autor: M. E. Prokhorov, K. A. Postnov
Publikováno v: Odessa Astronomical Publications, Vol 14, Iss 0, Pp 78-81 (2017)
The observed mass distribution for the compact remnants of massive stars (neutron stars and black holes) and its relationship to possible mechanisms for the ejection of the envelopes of type II and Ib/c supernovae is analyzed. The conclusion is drawn
Externí odkaz: https://doaj.org/article/3ddb5e1e61134918a2e355c96d6a6585
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5
Primordial Black Holes and Modification of Zeldovich–Novikov Mechanism
Autor: Alexander D. Dolgov, K. A. Postnov
Publikováno v: Astronomy Reports. 65:921-925
Bulk of various astronomical observations of black holes suggest that virtually all observed black holes can be of primordial origin. A modified mechanism of the primordial black hole formation is described. A universal log-normal mass spectrum with
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c69fe927f317a849efb65d5933e087ce
https://doi.org/10.1134/s1063772921100061
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6
Phase-resolved spectroscopic analysis of the eclipsing black hole X-ray binary M33 X-7: System properties, accretion, and evolution
Autor: V. Ramachandran, L. M. Oskinova, W.-R. Hamann, A. A. C. Sander, H. Todt, D. Pauli, T. Shenar, J. M. Torrejón, K. A. Postnov, J. M. Blondin, E. Bozzo, R. Hainich, D. Massa
Publikováno v: Astronomy and Astrophysics, 667:A77. EDP Sciences
M33 X-7 is the only known eclipsing black hole high mass X-ray binary. The system is reported to contain a very massive O supergiant donor and a massive black hole in a short orbit. The high X-ray luminosity and its location in the metal-poor galaxy
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c81e3f61d6fdb788b4c5e56e9ebfc42b
https://dare.uva.nl/personal/pure/en/publications/phaseresolved-spectroscopic-analysis-of-the-eclipsing-black-hole-xray-binary-m33-x7(5b115155-01b7-4888-84a8-a841df6d0db7).html
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7
Discovery and origin of the radio emission from the multiple stellar system KQVel
Autor: P Leto, L M Oskinova, C S Buemi, M E Shultz, F Cavallaro, C Trigilio, G Umana, L Fossati, I Pillitteri, J Krtička, R Ignace, C Bordiu, F Bufano, G Catanzaro, L Cerrigone, M Giarrusso, A Ingallinera, S Loru, S P Owocki, K A Postnov, S Riggi, J Robrade, F Leone
KQVel is a binary system composed of a slowly rotating magnetic Ap star with a companion of unknown nature. In this paper, we report the detection of its radio emission. We conducted a multi-frequency radio campaign using the ATCA interferometer (ban
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44c4f66d5532999e8df8e8acca3ed449
http://arxiv.org/abs/2207.14075
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10
The relation between the observed mass distribution for compact stars and the mechanism for supernova explosions
Autor: M. E. Prokhorov, K. A. Postnov
Publikováno v: Astronomy Reports. 45:899-907
The observed mass distribution for the compact remnants of massive stars (neutron stars and black holes) and its relationship to possible mechanisms for the ejection of the envelopes of type II and Ib/c supernovae is analyzed. The conclusion is drawn
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7e6f99e475bacc7c8f023d0c020d49d5
https://doi.org/10.1134/1.1416279
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