Electron-Positron Pair Cascades and Precursors in Gamma-Ray Bursts

Abstract

Gamma-ray burst sources with a high luminosity can produce electron-positron pair cascades in their environment as a result of back-scattering of a seed fraction of their original hard spectrum. The resulting spectral modifications offer the possibility of diagnosing not only the compactness parameter of the gamma-ray emitting region but also the baryonic density of the environment external to the burst.

Ap.J. in press; aaspp4, 12 pages, 2 figs

References in corpus (4)

• Relativistic Winds from Compact Gamma-Ray Sources: II. Pair Loading and Radiative Acceleration in Gamma-ray Bursts
• Relativistic Winds from Compact Gamma-ray Sources: I. Radiative Acceleration in the Klein-Nishina Regime
• Flash-Heating of Circumstellar Clouds by Gamma Ray Bursts
• Compton Echoes from Gamma-ray Bursts

Cited by in corpus (42)

• The Physics of Gamma-Ray Bursts
• Gamma-Ray Bursts
• The Physics of Gamma-Ray Bursts and Relativistic Jets
• Gamma-Ray Bursts: Progress, Problems & Prospects
• Theories of Gamma-Ray Bursts
• A Complete Reference of the Analytical Synchrotron External Shock Models of Gamma-Ray Bursts
• A decade of Gamma-Ray Bursts observed by $Fermi$-LAT: The 2${}^{nd}$ GRB catalog
• GeV emission from Gamma Ray Bursts: a radiative fireball?
• Precursors of short gamma-ray bursts
• Thermalization in Relativistic Outflows and the Correlation between Spectral Hardness and Apparent Luminosity in Gamma-ray Bursts
• GeV and higher energy photon interactions in gamma-ray burst fireballs and surroundings
• Early Afterglow Emission from a Reverse Shock as a Diagnostic Tool for GRB Outflows
• Deceleration of a Relativistic, Photon-Rich Shell: End of Preacceleration, Damping of MHD Turbulence, and the Emission Mechanism of Gamma-Ray Bursts
• Radiation Front Sweeping the Ambient Medium of Gamma-Ray Bursts
• Science objectives of the Einstein Probe mission
• Pure and loaded fireballs in SGR giant flares
• On the origin of GeV emission in gamma-ray bursts
• Gamma-Ray Burst Afterglows in Pulsar-Wind Bubbles
• Precursors and electron-positron pair loading from erupting fireballs
• Beam Models for Gamma-Ray Bursts Sources: Outflow Structure, Kinematics and Emission Mechanisms
• Probing strong-field QED with Doppler-boosted PetaWatt-class lasers
• Precursors in Short Gamma-ray Bursts as a Possible Probe of Progenitors
• GRBs and the 511 keV emission of the Galactic bulge
• Afterglow emission from pair-loaded blast waves in gamma-ray bursts
• GRB 990123 revisited: Further Evidence for a Reverse Shock
• Electromagnetic Catastrophe in Ultrarelativistic Shocks and the Prompt Emission of Gamma-Ray Bursts
• Pair loading in Gamma-Ray Burst Fireball And Prompt Emission From Pair-Rich Reverse Shock
• Identifying Gamma-Ray Burst Remnants Through Positron Annihilation Radiation
• Nearby SN-Associated GRB~190829A: Environment, Jet Structure, and VHE Gamma-Ray Afterglows
• The origin of the optical flashes: The case study of GRB 080319B and GRB 130427A
• Gamma Ray Bursts and their links with Supernovae and Cosmology
• Magnetic field amplification by a plasma cavitation instability in relativistic shock precursors
• Microphysics of Relativistic Collisionless Electron-ion-positron Shocks
• PICSAR-QED: a Monte Carlo module to simulate Strong-Field Quantum Electrodynamics in Particle-In-Cell codes for exascale architectures
• X-ray Lines From Gamma-ray Bursts
• Creation of Electron--Positron Wind in Gamma-Ray Bursts and Its Effect on the Early Afterglow Emission
• Particle Acceleration, Magnetic Field Generation, and Associated Emission in Collisionless Relativistic Jets
• Electron slingshot acceleration in relativistic preturbulent shocks explored via emitted photon polarization
• Can past gamma-ray bursts explain both INTEGRAL and ATIC/PAMELA/Fermi anomalies simultaneously?
• Subphotospheric emission from short gamma-ray bursts: Protons mold the multi-messenger signals
• A Simple Test of the External Shock Model for the Prompt Emission in Gamma-Ray Bursts
• Temporal variability in early afterglows of short gamma-ray bursts