Results 161 to 170 of about 2,282,133 (297)
Probing the Nature of High-redshift Long GRB 250114A and Its Magnetar Central Engine
The Astrophysical JournalGRB 250114A is a long-duration gamma-ray burst (GRB) that triggered the Swift/Burst Alert Telescope with a spectroscopic high redshift at z = 4.732.
Wen-Yuan Yu +4 more
doaj +1 more source
Gamma-Ray Bursts: An Overview [PDF]
, 1995 A history and overview of the observed properties of gamma-ray bursts are presented. The phenomenon of gamma-ray bursts is without precedent in astronomy, having no observed property that would be a direct indicator of their distance and no counterpart ...
Fishman, Gerald J.
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Dynamic cracking properties and generating conditions of coal under rapid gas release
Deep Underground Science and Engineering, EarlyView.Gas release tests revealed that crack initiation and propagation are jointly controlled by initial crack length, residual strength, and gas release velocity. A new outburst risk coefficient was thus developed from a fracture mechanics perspective, offering a novel predictive approach.
Bing Zhang +6 more
wiley +1 more source
The Astrophysical JournalThe prompt emission spectra of gamma-ray bursts (GRBs) are commonly described by the empirical Band function. The typical low-energy spectral index is ∼−1, which poses a challenge to standard synchrotron radiation models.
Jia-Ming Chen +7 more
doaj +1 more source
BINARY NEUTRON STAR MERGERS: A JET ENGINE FOR SHORT GAMMA-RAY BURSTS. [PDF]
Astrophys J Lett, 2016 Ruiz M +3 more
europepmc +1 more source
Deep Underground Science and Engineering, EarlyView.This study establishes a multi‐factor coupling framework for predicting breakdown pressure in laminated shale by integrating experimental hydraulic fracturing tests, physics‐informed neural networks (PINNs), and Sobol sensitivity analysis. It reveals how differential stress, the bedding dip angle, and the injection rate interact to influence fracture ...
Tao Wang +6 more
wiley +1 more source
Jet Structure Imprint on the Curvature Tail of Gamma-Ray Burst Prompt Emission
The Astrophysical JournalEven though the prompt emission of gamma-ray bursts (GRBs) is highly beamed, high-latitude emission still produces a distinct light-curve break after the intrinsic emission ceases and the edge of the jet comes into view.
Zhen-Yu Yan +9 more
doaj +1 more source
Deep Underground Science and Engineering, EarlyView.This study quantitatively analyzed the spatiotemporal evolution of stress redistribution ahead of the working face by integrating coal seam distribution, tectonic stress anomalies, gas pressure, and mining‐induced disturbances. An R‐value criterion for coal and gas outburst (CGO) risk assessment was established based on energy principles.
Yingjie Zhao +7 more
wiley +1 more source
The Astrophysical Journal LettersFallback accretion in collapsar models is often associated with underluminous gamma-ray bursts (GRBs), leading to the widespread view that fallback-fed engines may be intrinsically inefficient at producing high-luminosity events.
Chen-Wei Wang +17 more
doaj +1 more source
CALET Gamma-ray Burst Monitor observations
, 2018 The CALET Gamma-ray Burst Monitor (CGBM) is the secondary scientific instrument of the CALET mission, continuously operating on board of the International Space Station (ISS) since October 2015.The CGBM consists of 2 Hard X-ray Monitors (HXMs) and one ...
Sergio Bruno, Ricciarini
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