Results 31 to 40 of about 257,446 (367)

GECAM Localization of High-energy Transients and the Systematic Error

open access: yesThe Astrophysical Journal Supplement Series, 2023
The Gravitational Wave High-energy Electromagnetic Counterpart All-sky Monitor (GECAM) is a pair of microsatellites (i.e., GECAM-A and GECAM-B) dedicated to monitoring gamma-ray transients including the high-energy electromagnetic counterparts of ...
Yi Zhao   +65 more
doaj   +1 more source

Gamma-ray Vortex Burst in Nonlinear Thomson Scattering with Refocusing Spiral Plasma Mirror

open access: yesUltrafast Science, 2023
The gamma-ray vortex burst in the nonlinear Thomson scattering when the laser wakefield accelerated electron bunch collides with an ultra-intense Laguerre–Gaussian laser that was reflected from the refocusing spiral plasma mirror.
Weijun Zhou   +3 more
doaj   +1 more source

The optical afterglow of the short gamma-ray burst associated with GW170817 [PDF]

open access: yesNature Astronomy, 2018
The binary neutron star merger GW170817 was the first multi-messenger event observed in both gravitational and electromagnetic waves1,2. The electromagnetic signal began approximately two seconds post-merger with a weak, short burst of gamma rays3, which
J. Lyman   +38 more
semanticscholar   +1 more source

Gamma-Ray Burst Afterglows in the Multimessenger Era: Numerical Models and Closure Relations [PDF]

open access: yesAstrophysical Journal, 2019
Gamma-ray bursts (GRBs) associated with gravitational wave events are, and will likely continue to be, viewed at a larger inclination than GRBs without gravitational wave detections.
G. Ryan, H. V. Eerten, L. Piro, E. Troja
semanticscholar   +1 more source

GAMMA RAY BURST FOLLOW-UPS WITH BOOTES

open access: yesOdessa Astronomical Publications, 2014
The Burst Observer and Optical Transient Exploring System (BOOTES), is a global robotic observatory network, which started in 1998 with Spanish leadership devoted to study optical emissions from gamma ray bursts (GRBs) that occur in the Universe.
Sergey Guziy   +16 more
doaj   +1 more source

Fair Weather Neutron Bursts From Photonuclear Reactions by Extensive Air Shower Core Interactions in the Ground and Implications for Terrestrial Gamma‐ray Flash Signatures

open access: yesGeophysical Research Letters, 2021
We report on anomalously long duration (2 ms) count rate bursts following the impact of cosmic ray showers near a 7.62 cm x⊘7.62 cm LaBr3 scintillation detector at the High Altitude Water Cherenkov array in Mexico, previously described by Stenkin et al. (
Gregory S. Bowers   +26 more
doaj   +1 more source

Dark gamma-ray bursts [PDF]

open access: yesPhysical 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   +3 more sources

Size of shell universe in light of Fermi GBM transient associated with GW150914

open access: yesPhysics Letters B, 2016
The possible burst occurred in location and temporal consistence with gravitational wave event GW150914, as reported by Fermi GBM, offers a new way of constraining models with extra dimensions.
Merab Gogberashvili   +2 more
doaj   +1 more source

Absolute Magnitude Distribution And Light Curves Of Gamma-Ray Burst Supernovae [PDF]

open access: yes, 2008
Photometry data were collected from the literature and analyzed for supernovae that are thought to have a gamma-ray burst association. There are several gamma-ray burst afterglow light curves that appear to have a supernova component.
Bloom   +9 more
core   +3 more sources

Superlong gamma-ray bursts [PDF]

open access: yesAstronomy 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 ...
Ya. Yu. Tikhomirova, Boris E. Stern
openaire   +3 more sources

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