Results 41 to 50 of about 68,957 (199)

Gamma-ray bursts and bursters [PDF]

Nuclear Physics B - Proceedings Supplements, 2000
Invited talk at the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, Paris, Dec. 1998. To appear in Nuclear Phys. B, (Proceedings Supplements), Elsevier Science; latex file, 15 pages, 6 figures, uses espcrc2.sty, included; minor ...
openaire   +2 more sources

Afterglows as Diagnostics of Gamma Ray Burst Beaming [PDF]

, 1997
If gamma ray bursts are highly collimated, radiating into only a small fraction of the sky, the energy requirements of each event may be reduced by several (up to 4 - 6) orders of magnitude, and the event rate increased correspondingly. The large Lorentz
Rhoads, James E.
core   +3 more sources

Gamma-ray burst cosmology [PDF]

New Astronomy Reviews, 2015
21 pages, 24 figures, Accepted for publication by New Astronomy ...
Wang, F. Y., Dai, Z. G., Liang, E. W.
openaire   +2 more sources

Exploring the connection between compact object mergers and fast X-ray transients

Astronomy & Astrophysics
Context. The connection between compact object mergers and some extragalactic fast X-ray transients (FXRTs) has long been hypothesised but never ultimately established. Aims.
Becerra R. L., Yang Y.-H., Troja E., El Kabir M., Dichiara S., Passaleva N., O’Connor B., Ricci R., Fryer C., Hu L., Wu Q., Yadav M., Watson A. M., Tsvetkova A., Angulo-Valdez C., Caballero-García M. D., Castro-Tirado A. J., Cheung C. C., Frederiks D., Gritsevich M., Grove J. E., Kerr M., Lee W. H., Lysenko A. L., Pereyra M., Ridnaia A., Sánchez-Ramírez R., Sun H., Svinkin D., Ulanov M., Woolf R., Zhang B.   +31 more
doaj   +1 more source

Numerical modelling with analytical estimation of the free parameter space of GRB afterglows: The case of GRB 221009A [PDF]

EPJ Web of Conferences
On date 9th of October 2022, an exceptionally bright Gamma-Ray Burst, GRB 221009A, was detected by several observatories, both ground- and space-based.
Gasbarra Claudio, Belardinelli Daniele, Fafone Viviana, Miceli Davide, Morselli Aldo, Rodriguez Fernandez Gonzalo   +5 more
doaj   +1 more source

X-ray afterglow detection of the short gamma-ray burst 991014 [PDF]

, 2000
GRB 991014 is one of the shortest gamma-ray bursts detected so far with the Wide Field Cameras aboard BeppoSAX, both in gamma-rays and X-rays. The duration is 9.6 sec in 2-28 keV and 3.2 sec in 40 to 700 keV (as measured between the times when 5 and 95 ...
A. Coletta, Dezalay J-P., E. Costa, E. Kuulkers, F. Frontera, G. Gandolfi, Giommi P., J. Heise, J. J. M. in ’t Zand, J. M. Muller, K. Hurley, L. A. Antonelli, L. Amati, L. Kuiper, L. Nicastro, L. Piro, M. Feroci, M. J. S. Smith, M. Tavani   +18 more
core   +3 more sources

On the Ultralong Gamma-Ray Transient GRB 250702B/EP 250702a

The Astrophysical Journal Letters
GRB 250702B/EP 250702a is an interesting long-duration gamma-ray transient whose nature is in debate. To obtain a full picture in the gamma-ray band, we implement a comprehensive targeted search of burst emission in a wide window of 30 days jointly with ...
Jin-Peng Zhang, Chen-Wei Wang, Zheng-Hang Yu, Shao-Lin Xiong, Shu-Xu Yi, Jia-Cong Liu, Wang-Chen Xue, Wen-Jun Tan, Zi-Rui Zhang, Rahim Moradi, Hao-Xuan Guo, Chao Zheng, Yan-Qiu Zhang, Yue Wang, Sheng-Lun Xie, Peng Zhang, Yang-Zhao Ren, Cheng-Kui Li, Xiao-Bo Li, Ce Cai, Shuo Xiao, Li-Ming Song, Shuang-Nan Zhang   +22 more
doaj   +1 more source

EURO-ASIAN COLLABORATION FOR GAMMA-RAY BURST OPTICAL OBSERVATIONS

Odessa Astronomical Publications, 2017
Gamma-ray burst (GRB) very interesting objects in Universe. In the study of gamma-ray burst is very important operative observations with many points in first day and other days after the burst. INTEGRAL, HETE-II and specially SWIFT era is going to leave
A. S. Bogdanov, S. S. Guziy, A. J. Castro-Tirado, A. de. Ugarte Postigo, J. Gorosabel, M. Jelinek, V. V. Sokolov, T. A. Fatkhullin, I. M. Kheifets   +8 more
doaj   +1 more source

First measurement of HI 21cm emission from a GRB host galaxy indicates a post-merger system

, 2015
We report the detection and mapping of atomic hydrogen in HI 21cm emission from ESO 184-G82, the host galaxy of the gamma ray burst 980425. This is the first instance where HI in emission has been detected from a galaxy hosting a gamma ray burst. ESO 184-
Arabsalmani, Maryam, Kanekar, Nissim, Michałowski, Michał J., Roychowdhury, Sambit, Zwaan, Martin   +4 more
core   +1 more source

The hidden population of long gamma-ray bursts from compact object mergers

Astronomy & Astrophysics
Context. The prompt-emission time profiles of GRB 230307A and other long-duration compact object merger (COM) candidates exhibit a unique set of temporal properties, characterised by a deterministic evolution of waiting times and pulse widths. Aims.
Maccary R., Guidorzi C., Amati L., Bulla M., Kobayashi S., Maistrello M., Rossi A., Stratta G., Tsvetkova A.   +8 more
doaj   +1 more source