Zobrazeno 1 - 10
of 14 938
pro vyhledávání: '"Frontera, A."'
Autor:
Guidorzi, C., Maccary, R., Tsvetkova, A., Kobayashi, S., Amati, L., Bazzanini, L., Bulla, M., Camisasca, A. E., Ferro, L., Frederiks, D., Frontera, F., Lysenko, A., Maistrello, M., Ridnaia, A., Svinkin, D., Ulanov, M.
At the dawn of the gamma-ray burst (GRB) afterglow era, a Cepheid-like correlation was discovered between time variability V and isotropic-equivalent peak luminosity Liso of the prompt emission of about a dozen long GRBs with measured redshift availa
Externí odkaz:
http://arxiv.org/abs/2409.01644
Autor:
Frontera, Filippo
Publikováno v:
Universe 2024, 10, 260
More than fifty years have been elapsed from the first discovery of a Gamma Ray Burst (GRB) with the American Vela satellites, and more than twenty-five years from the discovery with the BeppoSAX satellite of the first X-ray afterglow of a GRB. Thank
Externí odkaz:
http://arxiv.org/abs/2407.20305
Autor:
Maccary, R., Maistrello, M., Guidorzi, C., Sartori, M., Amati, L., Bazzanini, L., Bulla, M., Camisasca, A. E., Ferro, L., Frontera, F., Tsvetkova, A.
Context. The dissipation process responsible for the long gamma-ray burst (GRB) prompt emission and the kind of dynamics that drives the release of energy as a function of time are still key open issues. We recently found that the distribution of the
Externí odkaz:
http://arxiv.org/abs/2407.06002
Due to its all-weather and day-and-night capabilities, Synthetic Aperture Radar imagery is essential for various applications such as disaster management, earth monitoring, change detection and target recognition. However, the scarcity of labeled SAR
Externí odkaz:
http://arxiv.org/abs/2407.00851
Autor:
Bazzanini, Lorenzo, Ferro, Lisa, Guidorzi, Cristiano, Angora, Giuseppe, Amati, Lorenzo, Brescia, Massimo, Bulla, Mattia, Frontera, Filippo, Maccary, Romain, Maistrello, Manuele, Rosati, Piero, Tsvetkova, Anastasia
Publikováno v:
A&A 689, A266 (2024)
Context. The complexity and variety exhibited by the light curves of long gamma-ray bursts (GRBs) enclose a wealth of information that still awaits being fully deciphered. Despite the tremendous advance in the knowledge of the energetics, structure,
Externí odkaz:
http://arxiv.org/abs/2403.18754
Autor:
Shui, Qingcang, Zhang, Shu, Wang, Pengju, Mushtukov, Alexander, Santangelo, Andrea, Zhang, Shuangnan, Kong, Lingda, Ji, Long, Chen, Yupeng, Doroshenko, Victor, Frontera, Fillipo, Chang, Zhi, Peng, Jingqiang, Yin, Hongxing, Qu, Jinlu, Tao, Lian, Ge, Mingyu, Li, Jian, Ye, Wentao, Li, Panping
We present a detailed analysis of the X-ray luminosity (Lx) dependence of the cyclotron absorption line energy (Ecyc) for the X-ray binary pulsar 1A 0535+262 during its 2020 giant outburst based on pulse-to-pulse analysis. By applying this technique
Externí odkaz:
http://arxiv.org/abs/2403.11815
Autor:
Guidorzi, C., Sartori, M., Maccary, R., Tsvetkova, A., Amati, L., Bazzanini, L., Bulla, M., Camisasca, A. E., Ferro, L., Frontera, F., Li, C. K., Xiong, S. L., Zhang, S. N.
Publikováno v:
A&A 685, A34 (2024)
The variety of long duration gamma-ray burst (LGRB) light curves (LCs) encode a wealth of information on how LGRB engines release energy following the collapse of the progenitor star. Attempts to characterise GRB LCs focused on a number of properties
Externí odkaz:
http://arxiv.org/abs/2402.17282
Autor:
Maccary, R., Guidorzi, C., Amati, L., Bazzanini, L., Bulla, M., Camisasca, A. E., Ferro, L., Frontera, F., Tsvetkova, A.
Discovered more than 50 years ago, gamma-ray burst (GRB) prompt emission remains the most puzzling aspect of GRB physics. Its complex and irregular nature should reveal how newborn GRB engines release their energy. In this respect, the possibility th
Externí odkaz:
http://arxiv.org/abs/2401.14063
Autor:
Ferro, Lisa, Cavazzini, Leo, Moita, Miguel, Virgilli, Enrico, Frontera, Filippo, Amati, Lorenzo, Auricchio, Natalia, Campana, Riccardo, Caroli, Ezio, Guidorzi, Cristiano, Labanti, Claudio, Rosati, Piero, Stephen, John B.
Publikováno v:
Proc. SPIE 12576, EUV and X-ray Optics: Synergy between Laboratory and Space VIII, 1257603 (7 June 2023)
A new detection system for X-/Gamma-ray broad energy passband detectors for astronomy has been developed. This system is based on Silicon Drift Detectors (SDDs) coupled with scintillator bars; the SDDs act as a direct detector of soft (<30 keV) X-ray
Externí odkaz:
http://arxiv.org/abs/2309.11195
Autor:
Ferro, Lisa, Virgilli, Enrico, Moita, Miguel, Frontera, Filippo, Rosati, Piero, Guidorzi, Cristiano, Ferrari, Claudio, Lolli, Riccardo, Caroli, Ezio, Auricchio, Natalia, Stephen, John B., Del Sordo, Stefano, Gargano, Carmelo, Squerzanti, Stefano, Pucci, Mauro, Limousin, Olivier, Meuris, Aline, Laurent, Philippe, Allaire, Hugo
Publikováno v:
Proceedings Volume 12181, Space Telescopes and Instrumentation 2022: Ultraviolet to Gamma Ray; 121812K (2022)
Hard X-/soft Gamma-ray astronomy (> 100 keV) is a crucial field for the study of important astrophysical phenomena such as the 511 keV positron annihilation line in the Galactic center region and its origin, gamma-ray bursts, soft gamma-ray repeaters
Externí odkaz:
http://arxiv.org/abs/2309.11187