Self-consistent simulations reveal that reverse shocks in GRB photospheres stay radiation-mediated down to optical depths of a few tenths, with photons decoupling over a broad radial range and forming a quasi-thermal post-cursor.
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4 Pith papers cite this work. Polarity classification is still indexing.
fields
astro-ph.HE 4years
2026 4verdicts
UNVERDICTED 4representative citing papers
The intensity-tracking pattern in GRB prompt spectra divides into three subclasses: aligned peaks (Type I), Ep before flux (Type II, dominant), and Ep after flux (Type III).
A second coherent radio burst spanning 704-4032 MHz with spectral index -2.18, 54% linear and 22% circular polarization, and an orthogonal polarization angle jump was detected from 2XMM J104608.7-594306, showing rare radio activity in sources thought to be radio-quiet.
Spectral width increases with time in GRB 220426A and GRB 230812B, challenging single-zone emission models and supporting multi-zone prompt emission.
citing papers explorer
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From Internal Collision to Photon Escape: First-Principles Modeling of Radiation-Mediated Shocks in Gamma-Ray Burst Photospheres
Self-consistent simulations reveal that reverse shocks in GRB photospheres stay radiation-mediated down to optical depths of a few tenths, with photons decoupling over a broad radial range and forming a quasi-thermal post-cursor.
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Three Subclasses of the Intensity-tracking Pattern in Gamma-Ray Burst Spectral Evolution
The intensity-tracking pattern in GRB prompt spectra divides into three subclasses: aligned peaks (Type I), Ep before flux (Type II, dominant), and Ep after flux (Type III).
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A bright wideband radio burst from the isolated neutron star 2XMM J104608.7$-$594306
A second coherent radio burst spanning 704-4032 MHz with spectral index -2.18, 54% linear and 22% circular polarization, and an orthogonal polarization angle jump was detected from 2XMM J104608.7-594306, showing rare radio activity in sources thought to be radio-quiet.
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Are Single-Zone Emission models Sufficient to Explain GRB 220426A and GRB 230812B?
Spectral width increases with time in GRB 220426A and GRB 230812B, challenging single-zone emission models and supporting multi-zone prompt emission.