Results 41 to 50 of about 58,726 (292)

Very-high-energy Gamma-Ray Afterglows of GRB 201015A and GRB 201216C

The Astrophysical Journal, 2023
Gamma-ray bursts (GRBs) 201015A and 201216C are valuable cases where very-high-energy (VHE) gamma-ray afterglows have been detected. By analyzing their prompt emission data, we find that GRB 201216C is an extremely energetic, long GRB with a hard gamma ...
Lu-Lu Zhang, Jia Ren, Yun Wang, En-Wei Liang   +3 more
doaj   +1 more source

Dark gamma-ray bursts [PDF]

Physical Review D, 2017
Many theories of dark matter (DM) predict that DM particles can be captured by stars via scattering on ordinary matter. They subsequently condense into a DM core close to the center of the star and eventually annihilate. In this work, we trace DM capture and annihilation rates throughout the life of a massive star and show that this evolution ...
Brdar, Vedran, Kopp, Joachim, Liu, Jia
openaire   +2 more sources

A Broken “α–intensity” Relation Caused by the Evolving Photosphere Emission and the Nature of the Extraordinarily Bright GRB 230307A

The Astrophysical Journal Letters, 2023
GRB 230307A is one of the brightest gamma-ray bursts detected so far. With the excellent observation of GRB 230307A by the Fermi Gamma-ray Burst Monitor, we can reveal the details of prompt emission evolution.
Yun Wang, Zi-Qing Xia, Tian-Ci Zheng, Jia Ren, Yi-Zhong Fan   +4 more
doaj   +1 more source

Long gamma-ray bursts and core-collapse supernovae have different environments [PDF]

, 2006
When massive stars exhaust their fuel they collapse and often produce the extraordinarily bright explosions known as core-collapse supernovae. On occasion, this stellar collapse also powers an even more brilliant relativistic explosion known as a long ...
A Heger, A Levan, A Panaitescu, A Zeh, A. G. Riess, A. J. Castro-Tirado, A. J. Levan, A. S. Fruchter, A. Smette, AG Riess, AG Riess, AI MacFadyen, AM Soderberg, AS Fruchter, C Kouveliotou, C Weidner, C. Conselice, C. Kouveliotou, CJ Conselice, D Branch, D Malesani, D. Bersier, DA Frail, DF Figer, DJ Schlegel, E Le Floc'h, E. Pian, F Mannucci, H-W Chen, H. C. Ferguson, HA Kobulnicky, I. Burud, J Hjorth, J. E. Rhoads, J. Gorosabel, J. Hjorth, J. M. Castro Cerón, J. P. U. Fynbo, JPU Fynbo, JS Bloom, JS Bloom, JS Bloom, JX Prochaska, K. C. Sahu, KZ Stanek, L Christensen, L. Petro, L. Strolger, LG Strolger, M Della Valle, M Giavalisco, M. Livio, M. R. Metzger, N Gehrels, N Mirabal, N. R. Tanvir, P Podsiadlowski, P. E. Nugent, P. M. Garnavich, P. M. Vreeswijk, PA Crowther, PM Vreeswijk, PM Vreeswijk, R. A. Gibbons, R. A. M. J. Wijers, S Klose, S Perlmutter, S van den Bergh, S van den Bergh, S Woosley, S-C Yoon, S. E. Thorsett, S. E. Woosley, S. T. Holland, SC Chapman, SD van Dyk, T. Dahlen, T. R. Gull, TJ Galama, VV Sokolov, Z. Levay   +80 more
core   +3 more sources

A theory of gamma-ray bursts

New Astronomy, 2000
32 pages, 8 figures, accepted for publication in New ...
Brown, G.E., Lee, C.-H., Wijers, R.A.M.J., Lee, H.K., Israelian, G., Bethe, H.A.   +5 more
openaire   +3 more sources

GRB 221009A: Discovery of an Exceptionally Rare Nearby and Energetic Gamma-Ray Burst

The Astrophysical Journal Letters, 2023
We report the discovery of the unusually bright long-duration gamma-ray burst (GRB), GRB 221009A, as observed by the Neil Gehrels Swift Observatory (Swift), Monitor of All-sky X-ray Image, and Neutron Star Interior Composition Explorer Mission.
Maia A. Williams, Jamie A. Kennea, S. Dichiara, Kohei Kobayashi, Wataru B. Iwakiri, Andrew P. Beardmore, P. A. Evans, Sebastian Heinz, Amy Lien, S. R. Oates, Hitoshi Negoro, S. Bradley Cenko, Douglas J. K. Buisson, Dieter H. Hartmann, Gaurava K. Jaisawal, N. P. M. Kuin, Stephen Lesage, Kim L. Page, Tyler Parsotan, Dheeraj R. Pasham, B. Sbarufatti, Michael H. Siegel, Satoshi Sugita, George Younes, Elena Ambrosi, Zaven Arzoumanian, M. G. Bernardini, S. Campana, Milvia Capalbi, Regina Caputo, Antonino D’Aì, P. D’Avanzo, V. D’Elia, Massimiliano De Pasquale, R. A. J. Eyles-Ferris, Elizabeth Ferrara, Keith C. Gendreau, Jeffrey D. Gropp, Nobuyuki Kawai, Noel Klingler, Sibasish Laha, A. Melandri, Tatehiro Mihara, Michael Moss, Paul O’Brien, Julian P. Osborne, David M. Palmer, Matteo Perri, Motoko Serino, E. Sonbas, Michael Stamatikos, Rhaana Starling, G. Tagliaferri, Aaron Tohuvavohu, Silvia Zane, Houri Ziaeepour   +55 more
doaj   +1 more source

The design of a gamma‐ray burst polarimeter [PDF]

, 1993
The study of the polarization properties of the gamma‐ray bursts is the one remaining unexplored avenue of research which may help to answer some of the fundamental problems regarding the nature of these mysterious objects. We have designed an instrument
Forrest, D J, Levenson, K, McConnell, Mark L, Vestrand, W T   +3 more
core   +2 more sources

Model Constraints Based on the IceCube Neutrino Nondetection of GRB 221009A

The Astrophysical Journal, 2023
GRB 221009A is a bright gamma-ray burst (GRB) with isotropic energy larger than 10 ^54 erg. Its fairly low redshift makes it a promising candidate for high-energy neutrino detection.
Shunke Ai, He Gao
doaj   +1 more source

Relativistic Conic Beams and Spatial Distribution of Gamma-Ray Bursts [PDF]

, 2000
We study the statistics of gamma-ray bursts, assuming that gamma-ray bursts are cosmological and they are beamed in the form of a conical jet with a large bulk Lorentz factor $\sim 100$.
Heon‐Young Chang, Insu Yi, Renaud N.
core   +6 more sources

The physics of gamma-ray bursts [PDF]

Reviews of Modern Physics, 2005
159 pages, 33 figures, accepted for publication in Reviews of Modern ...
openaire   +2 more sources