Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Pozanenko, Alexei"'
Autor:
Buckley, David A. H., McBride, Vanessa A., de Almeida, Ulisses Barres, Shustov, Boris, Pozanenko, Alexei, Lutovinov, Alexander, Omar, Amitesh, Murthy, Jayant, Safonova, Margarita, Jifeng, Liu, Soria, Roberto
This paper is based on a proposal submitted for a BRICS astronomy flagship program, which was presented at the 2019 meeting of the BRICS Astronomy Working Group, held in Rio de Janeiro from 29 September to 2 October 2019. The future prospects for the
Externí odkaz:
http://arxiv.org/abs/2011.02892
Autor:
Minaev, Pavel, Pozanenko, Alexei
A detailed analysis of the GBM/Fermi experiment data is carried out to classify GRB 200415A. It is shown that, on the one hand, this event exhibits typical for type I (short) gamma-ray bursts (GRBs) properties, such as duration, variability, and the
Externí odkaz:
http://arxiv.org/abs/2008.12752
Autor:
Li, Long, Wang, Xiang-Gao, Zheng, WeiKang, Pozanenko, Alexei S., Filippenko, Alexei V., Qin, Songmei, Wang, Shan-Qin, Jiang, Lu-Yao, Li, Jing, Lin, Da-Bin, Liang, En-Wei, Volnova, Alina A., Elenin, Leonid, Klunko, Evgeny, Inasaridze, Raguli Ya., Kusakin, Anatoly, Lu, Rui-Jing
We present very early ground-based optical follow-up observations of GRB~140423A, which was discovered by \emph{Swift}/BAT and by {\it Fermi}/GBM. Its broadband afterglow was monitored by {\it Swift}/XRT and ground-based optical telescopes from $T_0+
Externí odkaz:
http://arxiv.org/abs/2008.02445
Publikováno v:
International Journal of Modern Physics D, Vol. 27, 1844012 (2018)
We discuss the inhomogeneous behavior of gamma-ray burst afterglow light curves in optic. We use well-sampled light curves based on mostly our own observations to find and identify deviations (inhomogeneities) from broken power law. By the inhomogene
Externí odkaz:
http://arxiv.org/abs/1804.10441
Autor:
Pozanenko, Alexei, Barkov, Maxim V., Minaev, Pavel Yu., Volnova, Alina A., Mazaeva, Elena D., Moskvitin, Alexander S., Krugov, Maxim A., Samodurov, Vladimir A., Loznikov, Vladimir M., Lyutikov, Maxim
Publikováno v:
The Astrophysical Journal Letters, Volume 852, Issue 2, article id. L30, 18 pp. (2018)
We present our observations of electromagnetic transients associated with GW170817/GRB 170817A using optical telescopes of Chilescope observatory and Big Scanning Antenna (BSA) of Pushchino Radio Astronomy Observatory at 110MHz. The Chilescope observ
Externí odkaz:
http://arxiv.org/abs/1710.05448
Autor:
Minaev, Pavel, Pozanenko, Alexei
We have analyzed the light curves of 519 short gamma-ray bursts (GRBs) detected in the SPI-ACS/INTEGRAL experiment from December 2002 to May 2014 to search for precursors. Both the light curves of 519 individual events and the averaged light curve of
Externí odkaz:
http://arxiv.org/abs/1612.02418
Autor:
Kimura, Mariko, Isogai, Keisuke, Kato, Taichi, Ueda, Yoshihiro, Nakahira, Satoshi, Shidatsu, Megumi, Enoto, Teruaki, Hori, Takafumi, Nogami, Daisaku, Littlefield, Colin, Ishioka, Ryoko, Chen, Ying-Tung, King, Sun-Kun, Wen, Chih-Yi, Wang, Shiang-Yu, Lehner, Matthew J., Schwamb, Megan E., Wang, Jen-Hung, Zhang, Zhi-Wei, Alcock, Charles, Axelrod, Tim, Bianco, Federica B., Byun, Yong-Ik, Chen, Wen-Ping, Cook, Kem H., Kim, Dae-Won, Lee, Typhoon, Marshall, Stuart L., Pavlenko, Elena P., Antonyuk, Oksana I., Antonyuk, Kirill A., Pit, Nikolai V., Sosnovskij, Aleksei A., Babina, Julia V., Baklanov, Aleksei V., Pozanenko, Alexei S., Mazaeva, Elena D., Schmalz, Sergei E., Reva, Inna V., Belan, Sergei P., Inasaridze, Raguli Ya., Tungalag, Namkhai, Volnova, Alina A., Molotov, Igor E., de Miguel, Enrique, Kasai, Kiyoshi, Stein, William, Dubovsky, Pavol A., Kiyota, Seiichiro, Miller, Ian, Richmond, Michael, Goff, William, Andreev, Maksim V., Takahashi, Hiromitsu, Kojiguchi, Naoto, Sugiura, Yuki, Takeda, Nao, Yamada, Eiji, Matsumoto, Katsura, James, Nick, Pickard, Roger D., Tordai, Tamás, Maeda, Yutaka, Ruiz, Javier, Miyashita, Atsushi, Cook, Lewis M., Imada, Akira, Uemura, Makoto
Publikováno v:
Nature, Volume 529, Issue 7584, pp. 54-58 (2016)
How black holes accrete surrounding matter is a fundamental, yet unsolved question in astrophysics. It is generally believed that matter is absorbed into black holes via accretion disks, the state of which depends primarily on the mass-accretion rate
Externí odkaz:
http://arxiv.org/abs/1607.06195
Autor:
Hartoog, Olga E., Wiersema, Klaas, Vreeswijk, Paul M., Kaper, Lex, Tanvir, Nial R., Savaglio, Sandra, Berger, Edo, Chornock, Ryan, Covino, Stefano, D'Elia, Valerio, Flores, Hector, Fynbo, Johan P. U., Goldoni, Paolo, Gomboc, Andreja, Melandri, Andrea, Pozanenko, Alexei, Schaye, Joop, Postigo, Antonio de Ugarte, Wijers, Ralph A. M. J.
For Gamma-Ray Burst 100901A, we have obtained Gemini-North and Very Large Telescope optical afterglow spectra at four epochs: one hour, one day, three days and one week after the burst, thanks to the afterglow remaining unusually bright at late times
Externí odkaz:
http://arxiv.org/abs/1301.3912
Autor:
Barkov, Maxim V., Pozanenko, Alexei S.
Until now the existence of extended emission is an intriguing property of short bursts. It is not clear what is the nature of the extended emission. It might be a rising x-ray afterglow, or it could be a manifestation of the prolonged activity of a c
Externí odkaz:
http://arxiv.org/abs/1103.4246