Two Populations and Models of Gamma Ray Bursts

Abstract

Gamma-ray burst statistics are best explained by a source population at cosmological distances, while spectroscopy and intensity histories of some individual bursts imply an origin on Galactic neutron stars. To resolve this inconsistency I suggest the presence of two populations, one at cosmological distances and the other Galactic. I build on ideas of Shemi and Piran (1990) and of Mészáros and Rees (1993) involving the interaction of fireball debris with surrounding clouds to explain the observed intensity histories in bursts at cosmological distances. The distances to the Galactic population are undetermined because they are too few to affect the statistics of intensity and direction; I explain them as resulting from magnetic reconnection in neutron star magnetospheres.

25pp., WU-JIK-92-6

Cited by in corpus (125)

• Collapsars - Gamma-Ray Bursts and Explosions in "Failed Supernovae"
• Spectra and Light Curves of Gamma-Ray Burst Afterglows
• The Physics of Gamma-Ray Bursts
• Gamma-Ray Bursts and the Fireball Model
• Optical and Long Wavelength Afterglow from Gamma-Ray Bursts
• Gamma-Ray Bursts
• The Physics of Gamma-Ray Bursts and Relativistic Jets
• Generation of Magnetic Fields in the Relativistic Shock of Gamma-Ray-Burst Sources
• Hyper-Accreting Black Holes and Gamma-Ray Bursts
• Gamma-Ray Bursts: Progress, Problems & Prospects
• The Dynamics and Light Curves of Beamed Gamma Ray Burst Afterglows
• Gamma-Ray Bursts in the Swift Era
• Wind Interaction Models for Gamma-Ray Burst Afterglows: The Case for Two Types of Progenitors
• How to Tell a Jet from a Balloon: A Proposed Test for Beaming in Gamma Ray Bursts
• Predictions for The Very Early Afterglow and The Optical Flash
• On The Synchrotron Self-Compton Emission from Relativistic Shocks and Its Implications for Gamma-Ray Burst Afterglows
• Poynting Jets from Black Holes and Cosmological Gamma-Ray Bursts
• The Synchrotron Shock Model Confronts a `Line of Death' in the BATSE Gamma-Ray Burst Data
• High-energy Neutrino Astronomy: The Cosmic Ray Connection
• GRB990123, The Optical Flash and The Fireball Model
• Variability in GRBs - A Clue
• Hydrodynamic Time Scales and Temporal Structure of GRBs
• Expanding Relativistic Shells and Gamma-Ray Burst Temporal Structure
• Overall Evolution of Jetted Gamma-ray Burst Ejecta
• Images and Spectra From the Interior of a Relativistic Fireball
• A Generic Dynamical Model of Gamma-ray Burst Remnants
• Probing the Cosmic Reionization History and Local Environment of Gamma-Ray Bursts through Radio Dispersion
• The central engine of gamma-ray bursters
• Gamma-ray Bursts - A Puzzle Being Resolved
• The optical counterpart to gamma-ray burst GRB970228 observed using the Hubble Space Telescope
• Hydrodynamics of a Relativistic Fireball: the Complete Evolution
• Can X-ray emission powered by a spinning-down magnetar explain some GRB light curve features?
• Synchrotron Self Absorption in GRB Afterglow
• Beaming, Baryon-Loading, and the Synchrotron Self-Compton Component in Gamma-Ray Burst Blast Waves Energized by External Shocks
• X-ray Destruction of Dust Along the Line of Sight to Gamma-Ray Bursts
• Merging White Dwarf/Black Hole Binaries and Gamma-Ray Bursts
• Gamma-Ray Burst Polarization: Limits from RHESSI Measurements
• Gamma-ray Burst 080319B: Evidence for Relativistic Turbulence, Not Internal Shocks
• Yet Another Model of Gamma-Ray Bursts
• The Inverse Compton Emission Spectra in the Very Early Afterglows of Gamma-Ray Bursts
• On the Optical Light Curves of Afterglows from Jetted Gamma-ray Burst Ejecta: Effects of Parameters
• Super-Eddington Atmospheres that Don't Blow Away
• Possible Evidence for Relativistic Shocks in Gamma-Ray Bursts
• A Turbulent Model of Gamma-Ray Burst Variability
• Resolving Gamma-Ray Burst 000301C with a Gravitational Microlens
• Towards a complete theory of Gamma Ray Bursts
• Constraints on the Synchrotron Emission Mechanism in GRBs
• Gamma-ray bursts: optical afterglows in the deep Newtonian phase
• Gamma-Ray Burst Afterglows from Realistic Fireballs
• Variability of GRB Afterglows Due to Interstellar Turbulence
• Spectra of Unsteady Wind Models of Gamma-Ray Bursts
• The distances of short-hard GRBs and the SGR connection
• Pure and loaded fireballs in SGR giant flares
• Shock Breakout in Type Ibc Supernovae and Application to GRB 060218/SN 2006aj
• Observational Prospects for Afterglows of Short Duration Gamma-ray Bursts
• Energetics and beaming of gamma-ray burst triggers
• Properties of GRB Lightcurves from Magnetic Reconnection
• Precursors and electron-positron pair loading from erupting fireballs
• Spectral Lags of Gamma-Ray Burst From Ginga and BATSE
• MultiPulse {\it Fermi} Gamma-Ray Bursts. I. Evidence of the Transition from Fireball to Poynting-flux-dominated Outflow
• Effects of the Geometry of the Line-Forming Region on the Properties of Cyclotron Resonant Scattering Lines
• The External Shock Model of Gamma-Ray Bursts: Three Predictions and a Paradox Resolved
• Intrinsic Parameters of GRB990123 from Its Prompt Optical Flash and Afterglow
• Gamma-Ray Bursts: Afterglows and Central Engines
• Spectral Features from Ultrarelativistic Ions in Gamma-Ray Bursts?
• Observations and Theoretical Implications of GRB 970228
• A Reverse-Shock Model for the Early Afterglow of GRB 050525A
• The Pulse Scale Conjecture and the Case of BATSE Trigger 2193
• The Redshift of GRB 970508
• Cyclotron Line Formation in a Radiation-driven Outflow
• When Do Internal Shocks End and External Shocks Begin? Early-Time Broadband Modelling of GRB 051111
• GRB 090227B: the missing link between the genuine short and long GRBs
• No flares from Gamma-Ray Burst afterglow blast waves encountering sudden circumburst density change
• A Shotgun Model for Gamma Ray Bursts
• Multi-wavelength observations of afterglow of GRB 080319B and the modeling constraints
• Radiative Efficiencies of Continuously Powered Blast Waves
• Gamma Ray Bursts and Bursters
• Gamma-ray bursts: afterglows from cylindrical jets
• Prompt Gamma-ray and Early Afterglow Emission in the External Shock Model
• Implications of the Visible and X-Ray Counterparts to GRB970228
• Gamma-ray bursts in normal and extreme star-forming galaxies
• Relative spectral lag: an new redshift indicator to measure the cosmos with gamma-ray bursts
• Inverse Compton cooling in Klein-Nishina regime and GRB prompt spectrum
• Radio observations of GRB 100418a: Test of an energy injection model explaining long-lasting GRB afterglows
• Snapshot Identification of Gamma Ray Burst Optical Afterglows
• Matter-affected neutrino oscillations in ordinary and mirror stars and their implications for gamma-ray bursts
• Jetlike structures in low-mass binary neutron star merger remnants
• Emission and absorption lines of gamma-ray bursts affected by the relativistic motion of fireball ejecta
• A White Dwarf Merger Paradigm for Supernovae and Gamma-Ray Bursts
• Radio and Optical Follow-up Observations and Improved IPN Position of GRB 970111
• Gamma-ray Burst Models: General Requirements and Predictions
• Relativistic Mass Ejecta from Phase-transition-induced Collapse of Neutron Stars
• Neutrino oscillations and gamma-ray bursts
• The FWHM of local pulses and the corresponding power-law index of gamma-ray burst FRED pulses
• Dependence of Temporal Properties on Energy in Long-Lag, Wide-Pulse Gamma-Ray Bursts
• Postmerger multimessenger analysis of binary neutron stars: Effect of the magnetic field strength and topology
• Modeling the Linear Polarization of GRB Afterglows Across the Electromagnetic Spectrum
• Prospects of calibrating afterglow modeling of short GRBs with gravitational wave inclination angle measurements and resolving the Hubble tension with a GW-GRB association event
• Gamma-Ray Bursts and Related Phenomena
• Fireball and cannonball models of gamma ray bursts confront observations
• Gamma-ray burst afterglows as probes of galactic and intergalactic dust
• An energy-conserving dynamical model of GRB afterglows from magnetized forward and reverse shocks
• Stability of the Forward/Reverse Shock System Formed by the Impact of a Relativistic Fireball on an Ambient Medium
• Early GeV afterglows from gamma-ray bursts in pulsar wind bubbles
• Overall Spectral Properties of Prompt Emissions with Diverse Segments in Swift/BAT Short Gamma-ray Bursts
• Roles of the kinetic and dynamic mechanisms in the $L_p-E_p$ relation
• The benefit of simultaneous seven-filter imaging: 10 years of GROND observations
• No Radio Afterglow from the Gamma-Ray Burst of February 28, 1997
• Afterglow Light Curve Modulated by a Highly Magnetized Millisecond Pulsar
• Self-gravitating collapsing star and black hole spin-up in long gamma ray bursts
• Linking Short Gamma Ray Bursts and their Host Galaxies
• Cosmological Models of Gamma-Ray Bursts
• The Expected Duration of Gamma-Ray Bursts in the Impulsive Hydrodynamic Models
• Emission from Bow Shocks of Beamed Gamma-Ray Bursts
• Relationship between the rise width and the full width of gamma-ray burst pulses and its implications in terms of the fireball model
• Gamma-Ray Bursts and Binary Neutron Star Mergers
• Detection of Prompt Fast-Variable Thermal Component in Multi-Pulse Short Gamma-Ray Burst 170206A
• Afterglow Linear Polarization Signatures from Steep GRB Jets: Implications for Orphan Afterglows
• Full analytical ultrarelativistic 1D solutions of a planar working surface
• Time-Integrated Gamma-Ray Burst Synchrotron Spectra from Blast Wave/Cloud Interactions
• Exploring the pattern of the Galactic HI foreground of GRBs with the ATCA
• What do $\gamma$-ray bursts look like?
• Propagation of a realistic magnetar jet through binary neutron star merger medium and implications for short gamma-ray bursts
• GRB variabilities and following gravitational waves induced by gravitational instability in NDAFs
• A semi-analytical solution to the forward-reverse shock hydrodynamics of the gamma-ray burst afterglow