AD 775 Pulse of Cosmogenic Radionuclides Production as Imprint of a Galactic Gamma-Ray Burst

Abstract

We suggest an explanation of a sharp increase in the abundance of cosmogenic radiocarbon found in tree rings dated AD 775. The increase could originate from high-energy irradiation of the atmosphere by a galactic gamma-ray burst. We argue that, unlike a cosmic ray event, a gamma-ray burst does not necessarily result in a substantial increase in long-lived 10Be atmospheric production. At the same time, the 36Cl nuclide would be generated in the amounts detectable in the corresponding ice core samples from Greenland and Antarctica. These peculiar features allow experimental discrimination of nuclide effects caused by gamma-ray bursts and by powerful proton events.

References in corpus (10)

• A Comprehensive Analysis of Fermi Gamma-Ray Burst Data. I. Spectral Components and Their Possible Physical Origins of LAT/GBM GRBs
• The AD775 cosmic event revisited: the Sun is to blame
• Short versus Long Gamma-Ray Bursts: spectra, energetics, and luminosities
• A new model of cosmogenic production of radiocarbon 14C in the atmosphere
• Gamma Ray Bursts
• Occurrence of extreme solar particle events: Assessment from historical proxy data
• The Galactic Supernova Remnant W49B Likely Originates from a Jet-Driven, Core-Collapse Explosion
• A Near-Infrared and X-ray Study of W49B: A Wind Cavity Explosion
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Cited by in corpus (12)

• Extreme solar events
• A rapid cosmic-ray increase in BC 3372-3371 from ancient buried tree rings in China
• Solar activity around AD 775 from aurorae and radiocarbon
• Modelling Cosmic Radiation Events in the Tree-ring Radiocarbon Record
• A comet could not produce the carbon-14 spike in the 8th century
• A solar super-flare as cause for the 14C variation in AD 774/5 ?
• "Unusual Rainbow and White Rainbow" A new auroral candidate in oriental historical sources
• Variations of 14-C around AD 775 and AD 1795 - due to solar activity
• Has the Earth been exposed to numerous supernovae within the last 300 kyr?
• A transient event in AD 775 reported by al-Tabari: A bolide - not a nova, supernova, or kilonova
• Consequences of Energetic Magnetar-Like Outbursts of Nearby Neutron Stars: ${}^{14}$C Events and the Cosmic Electron Spectrum
• Reply to "Rapid ${}^{14}$C excursion at 3372-3371 BCE not observed at two different locations"