Results 141 to 150 of about 245,674 (370)

Multiwavelength Analysis of the Supernova-associated Low-luminosity GRB 171205A

open access: yesThe Astrophysical Journal
Multiwavelength properties of the nearby supernova (SN)-associated low-luminosity GRB 171205A are investigated in depth to constrain its physical origin synthetically. The pulse width is found to be correlated with energy with a power-law index of −0.24 ±
Xiu-Juan Li   +3 more
doaj   +1 more source

Gamma ray bursts: A review of recent high-precision measurements [PDF]

open access: yes
Recent measurements and discoveries in gamma ray bursts and transients are reviewed including observations of the red shifted annihilation line in two kinds of slow transients (in 'classical' gamma ray bursts and in the unique 1979 March 5th event); of ...
Cline, T. L.
core   +1 more source

Match Probability Statistics and Gamma Ray Burst Recurrences in the BATSE Catalog

open access: yes, 1995
We develop match probability statistics to test the recurrences of gamma ray bursts in the BATSE catalog 1B and 2B. We do not find a signal of repetitions at the match level of 1.e-3.Comment: 4 pages, LaTeX, two macros included (kluwer.sty, spacekap.sty)
David Bennett   +5 more
core   +1 more source

Carbon‐Coated Moth‐Eye Structure: An Ultrabroadband THz‐DUV Near‐Perfect Absorber

open access: yesAdvanced Optical Materials, EarlyView.
A silicon moth‐eye surface coated with pyrolytic carbon achieves >98% absorption from 1 to 1200 THz by combining gradient‐index matching with PyC's broadband conductivity, forming an ultra‐broadband absorber from THz to deep UV. Experimental results and simulations agreed well.
Yuki Hakamada   +18 more
wiley   +1 more source

Significant Cocoon Emission and Photosphere Duration Stretching in GRB 211211A: A Burst from a Neutron Star−Black Hole Merger

open access: yesThe Astrophysical Journal
The radiation mechanism (thermal photosphere or magnetic synchrotron) and the progenitor of gamma-ray bursts (GRBs) are under hot debate. Recently discovered, the prompt long-duration (∼10 s, normally from the collapse of massive stars) property of GRB ...
Yan-Zhi Meng   +2 more
doaj   +1 more source

On the Gamma Ray Burst Origin of Extremely Energetic Cosmic Rays

open access: yes, 2009
Air shower experiments have detected cosmic ray events of energies upto 300 EeV. Most likely these cosmic rays have originated from compact objects. Their exact sources are yet to be identified.
Abraham   +39 more
core   +2 more sources

Utilizing Synergistic Effect in Pd‐Doped Mesoporous γ‐Al2O3/SnO2 for Multiple Freon Refrigerant Gases Detection

open access: yesAdvanced Sensor Research, EarlyView.
Due to the synergistic effect of improved catalytic decomposition mechanism and Schottky‐barrier effect, the Pd‐γ‐Al2O3/SnO2 sensor exhibits outstanding response, good stability, selectivity, repeatability, and universality in sensing different Freon gases, which demonstrates its potential for use in Freon refrigeration leakage detection.
Jiahong Wen   +7 more
wiley   +1 more source

Contribution of γ-Ray Burst Afterglow Emissions to the Isotropic Diffuse γ-Ray Background

open access: yesThe Astrophysical Journal
The isotropic diffuse γ -ray background (IGRB) serves as a fundamental probe of the evolution of the extreme Universe. Although various astrophysical sources have been proposed as potential contributors to the IGRB, the dominant population is still under
Fang-Sheng Min   +5 more
doaj   +1 more source

A wind environment and Lorentz factors of tens explain gamma-ray bursts X-ray plateau. [PDF]

open access: yesNat Commun, 2022
Dereli-Bégué H   +5 more
europepmc   +1 more source

Gamma-ray burst variability above 4 MeV [PDF]

open access: yes
The relationship between the hard X-ray and gamma ray emissions during four bursts using the anti-coincidence shields of the High Energy Astronomy Observatory 3 (HEAO 3) Gamma Ray Spectrometer is explored.
Jacobson, A. S.   +4 more
core   +1 more source

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