Zobrazeno 1 - 10
of 171
pro vyhledávání: '"Lysenko, A. L."'
Autor:
Banerjee, Biswajit, Macera, Samanta, De Santis, Alessio Ludovico, Mei, Alessio, Tissino, Jacopo, Oganesyan, Gor, Frederiks, Dmitry D., Lysenko, Alexandra L., Svinkin, Dmitry S., Tsvetkova, Anastasia E., Branchesi, Marica
Observing and understanding the origin of the very-high-energy (VHE) spectral component in gamma-ray bursts (GRBs) has been challenging because of the lack of sensitivity in MeV-GeV observations, so far. The majestic GRB 221009A, known as the brighte
Externí odkaz:
http://arxiv.org/abs/2405.15855
Autor:
Liu, Y., Sun, H., Xu, D., Svinkin, D. S., Delaunay, J., Tanvir, N. R., Gao, H., Zhang, C., Chen, Y., Wu, X. -F., Zhang, B., Yuan, W., An, J., Bruni, G., Frederiks, D. D., Ghirlanda, G., Hu, J. -W., Li, A., Li, C. -K., Li, J. -D., Malesani, D. B., Piro, L., Raman, G., Ricci, R., Troja, E., Vergani, S. D., Wu, Q. -Y., Yang, J., Zhang, B. -B., Zhu, Z. -P., Postigo, A. de Ugarte, Demin, A. G., Dobie, D., Fan, Z., Fu, S. -Y., Fynbo, J. P. U., Geng, J. -J., Gianfagna, G., Hu, Y. -D., Huang, Y. -F., Jiang, S. -Q., Jonker, P. G., Julakanti, Y., Kennea, J. A., Kokomov, A. A., Kuulkers, E., Lei, W. -H., Leung, J. K., Levan, A. J., Li, D. -Y., Li, Y., Littlefair, S. P., Liu, X., Lysenko, A. L., Ma, Y. -N., Martin-Carrillo, A., O'Brien, P., Parsotan, T., Quirola-Vasquez, J., Ridnaia, A. V., Ronchini, S., Rossi, A., Mata-Sanchez, D., Schneider, B., Shen, R. -F., Thakur, A. L., Tohuvavohu, A., Torres, M. A. P., Tsvetkova, A. E., Ulanov, M. V., Wei, J. -J., Xiao, D., Yin, Y. -H. I., Bai, M., Burwitz, V., Cai, Z. -M., Chen, F. -S., Chen, H. -L., Chen, T. -X., Chen, W., Chen, Y. -F., Chen, Y. -H., Cheng, H. -Q., Cui, C. -Z., Cui, W. -W., Dai, Y. -F., Dai, Z. -G., Eder, J., Fan, D. -W., Feldman, C., Feng, H., Feng, Z., Friedrich, P., Gao, X., Guan, J., Han, D. -W, Han, J., Hou, D. -J., Hu, H. -B., Hu, T., Huang, M. -H., Huo, J., Hutchinson, I., Ji, Z., Jia, S. -M., Jia, Z. -Q., Jiang, B. -W., Jin, C. -C., Jin, G., Jin, J. -J., Keereman, A., Lerman, H., Li, J. -F., Li, L. -H., Li, M. -S., Li, W., Li, Z. -D., Lian, T. -Y., Liang, E. -W., Ling, Z. -X., Liu, C. -Z., Liu, H. -Y., Liu, H. -Q., Liu, M. -J., Liu, Y. -R., Lu, F. -J., LU, H. -J., Luo, L. -D., Ma, F. L., Ma, J., Mao, J. -R., Mao, X., McHugh, M., Meidinger, N., Nandra, K., Osborne, J. P., Pan, H. -W., Pan, X., Ravasio, M. E., Rau, A., Rea, N., Rehman, U., Sanders, J., Santovincenzo, A., Song, L. -M., Su, J., Sun, L. -J., Sun, S. -L., Sun, X. -J., Tan, Y. -Y., Tang, Q. -J., Tao, Y. -H., Tong, J. -Z., Wang, H., Wang, J., Wang, L., Wang, W. -X., Wang, X. -F., Wang, X. -Y., Wang, Y. -L., Wang, Y. -S., Wei, D. -M., Willingale, R., Xiong, S. -L., Xu, H. -T., Xu, J. -J., Xu, X. -P., Xu, Y. -F., Xu, Z., Xue, C. -B., Xue, Y. -L., Yan, A. -L., Yang, F., Yang, H. -N., Yang, X. -T., Yang, Y. -J, Yu, Y. -W., Zhang, J., Zhang, M., Zhang, S. -N., Zhang, W. -D., Zhang, W. -J., Zhang, Y. -H., Zhang, Z., Zhang, Z. -L., Zhao, D. -H., Zhao, H. -S., Zhao, X. -F., Zhao, Z. -J., Zhou, L. -X., Zhou, Y. -L., Zhu, Y. -X., Zhu, Z. -C., Zuo, X. -X.
Long gamma-ray bursts (GRBs) are believed to originate from core collapse of massive stars. High-redshift GRBs can probe the star formation and reionization history of the early universe, but their detection remains rare. Here we report the detection
Externí odkaz:
http://arxiv.org/abs/2404.16425
Autor:
Kurt, Victoria G., Veronig, Astrid M., Fleishman, Gregory D., Hinterreiter, Jürgen, Tschernitz, Johannes, Lysenko, Alexandra L.
Publikováno v:
A&A 686, A195 (2024)
The 2003 October 28 (X17.2) eruptive flare was a unique event. The coronal electric field and the {\pi}-decay {\gamma}-ray emission flux had the highest values ever inferred in solar flares. This study reveals physical links between the magnetic reco
Externí odkaz:
http://arxiv.org/abs/2403.08135
Autor:
Trigg, Aaron C., Burns, Eric, Roberts, Oliver J., Negro, Michela, Svinkin, Dmitry S., Baring, Matthew G., Wadiasingh, Zorawar, Christensen, Nelson L., Andreoni, Igor, Briggs, Michael S., Di Lalla, Niccolo, Frederiks, Dmitry D., Lipunov, Vladimir M., Omodei, Nicola, Ridnaia, Anna V., Veres, Peter, Lysenko, Alexandra L.
Publikováno v:
A&A 687, A173 (2024)
Magnetars are slowly rotating neutron stars that possess the strongest magnetic fields ($10^{14}-10^{15} \mathrm{G}$) known in the cosmos. They display a range of transient high-energy electromagnetic activity. The brightest and most energetic of the
Externí odkaz:
http://arxiv.org/abs/2311.09362
Autor:
Lysenko, Alexandra L., White, Stephen M., Zhdanov, Dmitry A., Meshalkina, Nataliia S., Altyntsev, Aleksander T., Motorina, Galina G., Fleishman, Gregory D.
Publikováno v:
The Astrophysical Journal, 2023, Volume 954, Issue 2, id.122, 12 pp
We identify a set of ~100 "cold" solar flares and perform a statistical analysis of them in the microwave range. Cold flares are characterized by a weak thermal response relative to nonthermal emission. This work is a follow up of a previous statisti
Externí odkaz:
http://arxiv.org/abs/2309.03993
Autor:
Burns, Eric, Svinkin, Dmitry, Fenimore, Edward, Kann, D. Alexander, Fernández, José Feliciano Agüí, Frederiks, Dmitry, Hamburg, Rachel, Lesage, Stephen, Temiraev, Yuri, Tsvetkova, Anastasia, Bissaldi, Elisabetta, Briggs, Michael S., Fletcher, Cori, Goldstein, Adam, Hui, C. Michelle, Hristov, Boyan A., Kocevski, Daniel, Lysenko, Alexandra L., Mailyan, Bagrat, Racusin, Judith, Ridnaia, Anna, Roberts, Oliver J., Ulanov, Mikhail, Veres, Peter, Wilson-Hodge, Colleen A., Wood, Joshua
GRB 221009A has been referred to as the Brightest Of All Time (the BOAT). We investigate the veracity of this statement by comparing it with a half century of prompt gamma-ray burst observations. This burst is the brightest ever detected by the measu
Externí odkaz:
http://arxiv.org/abs/2302.14037
Autor:
Frederiks, D., Svinkin, D., Lysenko, A. L., Molkov, S., Tsvetkova, A., Ulanov, M., Ridnaia, A., Lutovinov, A. A., Lapshov, I., Tkachenko, A., Levin, V.
Publikováno v:
The Astrophysical Journal Letters, 949, L7 (2023)
We report on Konus-Wind (KW) and Mikhail Pavlinsky ART-XC telescope observations and analysis of a nearby GRB 221009A, the brightest $\gamma$-ray burst (GRB) detected by KW for $>$28 years of observations. The prompt, pulsed phase of the burst emissi
Externí odkaz:
http://arxiv.org/abs/2302.13383
Autor:
Lysenko, A. L., Ulanov, M. V., Kuznetsov, A. A., Fleishman, G. D., Frederiks, D. D., Kashapova, L. K., Sokolova, Z. Ya., Svinkin, D. S., Tsvetkova, A. E.
Publikováno v:
Astrophys. J. Supplement Series, 262 (2022) 32-39
We present a database of solar flares registered by the Konus-Wind instrument during more than 27 years of operation, from 1994 November to now (2022 June). The constantly updated database (hereafter KW-Sun) contains over 1000 events detected in the
Externí odkaz:
http://arxiv.org/abs/2209.07593
Autor:
Ho, Anna Y. Q., Perley, Daniel A., Yao, Yuhan, Svinkin, Dmitry, Postigo, A. de Ugarte, Perley, R. A., Kann, D. Alexander, Burns, Eric, Andreoni, Igor, Bellm, Eric C., Bissaldi, Elisabetta, Bloom, Joshua S., Dekany, Richard, Drake, Andrew J., Fernández, José Feliciano Agüí, Frederiks, Dmitry, Graham, Matthew J., Hristov, Boyan A., Kasliwal, Mansi M., Kulkarni, S. R., Kumar, Harsh, Laher, Russ R., Lysenko, Alexandra L., Mailyan, Bagrat, Malacaria, Christian, Miller, A. A., Poolakkil, S., Riddle, Reed, Ridnaia, Anna, Rusholme, Ben, Savchenko, Volodymyr, Sollerman, Jesper, Thöne, Christina, Tsvetkova, Anastasia, Ulanov, Mikhail, von Kienlin, Andreas
Dirty fireballs are a hypothesized class of relativistic massive-star explosions with an initial Lorentz factor $\Gamma_\mathrm{init}$ below the $\Gamma_\mathrm{init}\sim100$ required to produce a long-duration gamma-ray burst (LGRB), but which could
Externí odkaz:
http://arxiv.org/abs/2201.12366
Autor:
Altyntsev, Alexander T., Meshalkina, Nataliia S., Lysenko, Alexandra L., Fleishman, Gregory D.
Particle acceleration in solar flares remains an outstanding problem in solar physics. It is yet unclear which of the acceleration mechanisms dominates and how exactly is the excessive magnetic energy transferred to the nonthermal and other forms of
Externí odkaz:
http://arxiv.org/abs/1909.03593