Results 21 to 30 of about 58,726 (292)

Revisiting the Spectral Energy Correlations of GRBs with Fermi Data. I. Model-wise Properties

The Astrophysical Journal Supplement Series, 2023
Gamma-ray bursts (GRBs) exhibit a diversity of spectra. Several spectral models (e.g., Band, cutoff power law (CPL), and blackbody) and their hybrid versions (e.g., Band+blackbody) have been widely used to fit the observed GRB spectra.
Liang Li
doaj   +1 more source

Short Gamma Ray Bursts as possible electromagnetic counterpart of coalescing binary systems [PDF]

, 2010
Coalescing binary systems, consisting of two collapsed objects, are among the most promising sources of high frequency gravitational waves signals detectable, in principle, by ground-based interferometers.
A. Abramovici, A. Perna, A. Virey, A.M. Soderberg, B. Caron, C. Kouveliotou, C.L. Fryer, D. Eichler, D. Malesani, D.B. Fox, E. Berger, E. Komatsu, E. Nakar, E. Nakar, E.S. Phinney, I. De Martino, J. Abadie, J. Hjorth, J.K. Cannizzo, K. Belczynski, K. Belczynski, M. Burgay, M. De Laurentis, M. Formisano, M. Maggiore, N. Gehrels, P. Mészáros, R. Chapman, R. Narayan, R. Narayan, R.C. Duncan, S. Campana, S. Capozziello, S. Capozziello, S.E. Woosley, T. Bulik, T.J. Galama, V. Kalogera, W.H. Lee   +38 more
core   +1 more source

Gamma-ray bursts [PDF]

Reports on Progress in Physics, 2006
Gamma-ray bursts are the most luminous explosions in the Universe, and their origin and mechanism are the focus of intense research and debate. More than three decades after their discovery, and after pioneering breakthroughs from space and ground experiments, their study is entering a new phase with the recently launched Swift satellite. The interplay
openaire   +4 more sources

GRB Redshift determination in the X-ray band [PDF]

, 1999
If gamma-ray bursts originate in dense stellar forming regions, the interstellar material can imprint detectable absorption features on the observed X-ray spectrum.
., Campana, Sergio, Covino, Stefano, Ghisellini, Gabriele, Haardt, Francesco, Lazzati, Davide   +5 more
core   +2 more sources

Superlong gamma-ray bursts [PDF]

Astronomy Letters, 2005
Before the BATSE/GRO launch GRBs seem to be a uniform phenomenon with duration up to about 100 seconds. The BATSE has detected many events longer than 100 s and a few longer than 500s. We performed the off-line scan of the 1024 ms continuous BATSE records and revealed several non-triggered episodes of the BATSE GRB triggers which confidently belong to ...
Tikhomirova, Ya., Stern, B. E.
openaire   +2 more sources

COMPTEL observations of cosmic gamma‐ray bursts [PDF]

, 1991
The imaging γ‐ray telescope COMPTEL on board NASA’s Compton Gamma‐Ray Observatory (GRO) has observed many cosmic gamma‐ray bursts during the early mission phase of GRO. COMPTEL records time‐resolved burst spectra over 0.1 MeV to 10 MeV energies, and, for
Bennett, K, Bloemen, H, Busetta, M, Collmar, W, Connors, A, de Vries, C, deBoer, H, den Herder, J W, Diehl, R, Hanlon, L O, Hermsen, W, Kippen, R M, Kuiper, L, Lichti, G G, Lockwood, J, McConnell, Mark L, Morris, D, Ryan, James M., Schonfelder, V, Stacy, G, Steinle, H, Strong, A W, Swanenburg, B, Taylor, B G, Varendorff, M, Williams, O R, Winkler, C   +26 more
core   +2 more sources

Early optical observations of seven gamma-ray bursts in comparison to their gamma X-ray characteristics in the MSU MASTER Global Robotic Telescopes Net

Геодинамика и тектонофизика, 2019
Seven gamma-ray bursts – GRB 130907A, GRB 140311B, GRB 140129B, GRB 160227A, GRB 120404A, GRB 110801A, and GRB 120811C were observed by the MSU MASTER (Mobile Astronomical System of TElescope Robots) Global Network.
V. M. Lipunov, N. V. Tyurina, V. G. Kornilov, E. S. Gorbovskoy, V. V. Vladimirov, A. S. Kuznetzov, P. V. Balanutsa, D. S. Zimnukhov, V. V. Chazov, D. M. Vlasenko, A. G. Tlatov, V. A. Senik, O. A. Ershova, O. A. Gress, N. M. Budnev, S. A. Yazev, O. B. Chvalaev, V. A. Poleshchuk, Yu. V. Ishmuhametova, V. V. Yurkov, A. V. Gabovich, Yu. P. Sergienko, R. Podesta, C. Lopez, F. Podesta, H. Levato, R. R. Lopez, M. Serra-Ricart, N. Lodieu, G. Israelian, L. Suarez-Andrez, D. Buckley   +31 more
doaj   +1 more source

MASTER prompt and follow-up GRB observations [PDF]

, 2009
There are the results of gamma-ray bursts observations obtained using the MASTER robotic telescope in 2007 - 2009. We observed 20 error-boxes of gamma-ray bursts this period.The limits on their optical brightnesses have been derived.
Alexander Belinski, Alexander Parkhomenko, Anatoly Sankovich, Andrey Tlatov, Artem Kuznetsov, Dmitry Kuvshinov, Evgeny Gorbovskoy, Ivan Zalozhnyh, Kirill Ivanov, Nataly Tyurina, Nikolaj Shatskij, Pavel Balanutsa, Peter Kortunov, Sergey Yazev, Vadim Krushinsky, Victor Kornilov, Vladimir Lipunov, Vladimir Yurkov   +17 more
core   +2 more sources

Black Hole Accretion in Gamma Ray Bursts

Galaxies, 2017
We study the structure and evolution of the hyperaccreting disks and outflows in the gamma ray bursts central engines. The torus around a stellar mass black hole is composed of free nucleons, Helium, electron-positron pairs, and is cooled by neutrino ...
Agnieszka Janiuk, Michal Bejger, Petra Sukova, Szymon Charzynski   +3 more
doaj   +1 more source

GRB 221009A with an Unconventional Precursor: A Typical Two-stage Collapsar Scenario?

The Astrophysical Journal, 2023
As the brightest gamma-ray burst (GRB) ever detected, GRB 221009A may offer a chance that reveals some interesting features that are hidden in those bursts that are not so bright.
Xin-Ying Song, Shuang-Nan Zhang
doaj   +1 more source