Results 21 to 30 of about 868 (220)

A Cosmological Fireball with 16% Gamma-Ray Radiative Efficiency

open access: yesThe Astrophysical Journal Letters, 2023
Gamma-ray bursts (GRBs) are the most powerful explosions in the universe. How efficiently the jet converts its energy to radiation is a long-standing problem, which is poorly constrained.
Liang Li   +11 more
doaj   +1 more source

Types of Fireballs

open access: yes, 2018
The good properties of Plotkin's call-by-value lambda-calculus crucially rely on the restriction to weak evaluation and closed terms. Open call-by-value is the more general setting where evaluation is weak but terms may be open. Such an extension is delicate, and the literature contains a number of proposals.
Accattoli, Beniamino, Guerrieri, Giulio
openaire   +2 more sources

Hydrodynamics of relativistic fireballs [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1993
17, CFA 3547#
Piran, Tsvi   +2 more
openaire   +2 more sources

Relationship between fireball's shapes and mechanical materials under grinding

open access: yesNihon Kikai Gakkai ronbunshu, 2014
The relationship between the elements included in materials and the fire ball obtained by spark test, that is simple, has been examined by using SEM photographing of the fire ball.
Makoto TANABE   +2 more
doaj   +1 more source

The Winchcombe fireball—That lucky survivor

open access: yesMeteoritics & Planetary Science, 2023
AbstractOn February 28, 2021, a fireball dropped ∼0.6 kg of recovered CM2 carbonaceous chondrite meteorites in South‐West England near the town of Winchcombe. We reconstruct the fireball's atmospheric trajectory, light curve, fragmentation behavior, and pre‐atmospheric orbit from optical records contributed by five networks.
McMullan, Sarah   +36 more
openaire   +3 more sources

Large Igneous Province Record Through Time and Implications for Secular Environmental Changes and Geological Time‐Scale Boundaries

open access: yesGeophysical Monograph Series, Page 1-26., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst   +8 more
wiley  

+4 more sources

On the Spectrum and Polarization of Magnetar Flare Emission

open access: yesGalaxies, 2018
Bursts and flares are among the distinctive observational manifestations of magnetars, isolated neutron stars endowed with an ultra-strong magnetic field ( B ≈ 10 14 – 10 15 G).
Roberto Taverna, Roberto Turolla
doaj   +1 more source

Experimental study on explosion dispersion process of a multi-layer composite charge under different initiation modes

open access: yesDefence Technology, 2020
The influence of initiation modes on the explosive dispersion process of the multi-layer composite charge (MCC) was studied. Overpressure sensors and high-speed photography system were used to investigate the energy release process of an MCC with a ...
Xiao-wen Hong   +5 more
doaj   +1 more source

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