Cosmic Rays from Gamma Ray Bursts in the Galaxy
arXiv:astro-ph/0504158 · doi:10.1086/432663
Abstract
The rate of terrestrial irradiation events by galactic gamma-ray bursts (GRBs) is estimated using recent standard-energy results. We assume that GRBs accelerate high-energy cosmic rays, and present results of three-dimensional simulations of cosmic rays moving in the Galactic magnetic field and diffusing through pitch-angle scattering. An on-axis GRB extinction event begins with a powerful prompt gamma-ray and neutron pulse, followed by a longer-lived phase from cosmic-ray protons and neutron-decay protons that diffuse towards Earth. Our results force a reinterpretation of reported ~ 10^{18} eV cosmic-ray anisotropies and offer a rigorous test of the model where high-energy cosmic rays originate from GRBs, which will soon be tested with the Auger Observatory.
arXiv comment9 pages, 4 figures, ApJ Letters, in press. Clarified limit of test-particle approximation, prediction that Auger will not confirm SUGAR source. (Data may not appear onscreen at low magnification.) Simulations at http://heseweb.nrl.navy.mil/gamma/~dermer/invest/sim/index.htm
References in corpus (22)
- Beaming in Gamma-Ray Bursts: Evidence for a Standard Energy Reservoir
- COSMOLOGICAL GAMMA RAY BURSTS AND THE HIGHEST ENERGY COSMIC RAYS
- Gamma-Ray Bursts: Progress, Problems & Prospects
- On the acceleration of Ultra High Energy Cosmic Rays in Gamma Ray Bursts
- MHD Turbulence Revisited
- GRB Energetics and the GRB Hubble Diagram: Promises and Limitations
- The Galactic Habitable Zone and the Age Distribution of Complex Life in the Milky Way
- The Spiral Structure of the Milky Way, Cosmic Rays, and Ice Age Epochs on Earth
- BVRI Observations of the Optical Afterglow of GRB 990510
- The Anisotropy of Cosmic Ray Arrival Direction around 10^18eV
- The Anisotropy of Cosmic Ray Arrival Directions around 10eV
- Astrophysical and Astrobiological Implications of Gamma-Ray Burst Properties
- Neutrino, Neutron, and Cosmic Ray Production in the External Shock Model of Gamma Ray Bursts
- High-Energy Cosmic Rays from Gamma-Ray Bursts
- Terrestrial Implications of Cosmological Gamma-Ray Burst Models
- Southern Hemisphere Observations of a eV Cosmic Ray Source Near the Direction of the Galactic Centre
- Transport of Ionizing Radiation in Terrestrial-like Exoplanet Atmospheres
- Terrestrial Ozone Depletion Due to a Milky Way Gamma-Ray Burst
- UHECR propagation in the Galaxy: clustering versus isotropy
- Life Extinctions By Cosmic Ray Bursts
- The last Gamma Ray Burst in our Galaxy? On the observed cosmic ray excess at particle energy 1 EeV
- Extended GeV-TeV Emission around Gamma-Ray Burst Remnants, and the Case of W49B
Cited by in corpus (26)
- Gamma-Ray Bursts in the Swift Era
- Multi-messenger picture of compact binary mergers
- Numerical relativity simulations of neutron star merger remnants using conservative mesh refinement
- Gamma-Ray Bursts and the Earth: Exploration of Atmospheric, Biological, Climatic and Biogeochemical Effects
- On the Redshift Distribution of Gamma Ray Bursts in the Swift Era
- Astrophysical Ionizing Radiation and the Earth: A Brief Review and Census of Intermittent Intense Sources
- Cosmic Ray Anisotropy as Signature for the Transition from Galactic to Extragalactic Cosmic Rays
- Ultra-high energy cosmic rays, cascade gamma-rays, and high-energy neutrinos from gamma-ray bursts
- Role of Galactic sources and magnetic fields in forming the observed energy-dependent composition of ultrahigh-energy cosmic rays
- Enhanced Cosmological GRB Rates and Implications for Cosmogenic Neutrinos
- Terrestrial Consequences of Spectral and Temporal Variability in Ionizing Photon Events
- High-Energy Cosmic Rays and the Greisen-Zatsepin-Kuzmin Effect
- Climatic and Biogeochemical Effects of a Galactic Gamma-Ray Burst
- A gamma-ray burst remnant in our Galaxy: HESS J1303-631
- Rapid X-ray Declines and Plateaus in Swift GRB Light Curves Explained by A Highly Radiative Blast Wave
- Modeling high-energy cosmic ray induced terrestrial muon flux: A lookup table
- Lookup tables to compute high energy cosmic ray induced atmospheric ionization and changes in atmospheric chemistry
- Astrobiological Effects of Gamma-Ray Bursts in the Milky Way Galaxy
- Superluminous supernovae: No threat from Eta Carinae
- Long-Term Prospects: Mitigation of Supernova and Gamma-Ray Burst Threat to Intelligent Beings
- Gamma-ray bursts and terrestrial planetary atmospheres
- Modeling high-energy cosmic ray induced terrestrial and atmospheric neutron flux: A lookup table
- Gamma-Ray Bursts as a Threat to Life on Earth
- Ultrahigh-energy nuclei, photons, and magnetic fields
- High Energy Cosmic Rays from Local GRBs
- Cosmic connections: from cosmic rays to gamma rays, to cosmic backgrounds and magnetic fields