Gamma-burst emission from neutron-star accretion

Technical Report · Tue Aug 30 00:00:00 EDT 1983

DOI:https://doi.org/10.2172/5668516· OSTI ID:5668516

Colgate, S A; Petschek, A G; Sarracino, R

A model for emission of the hard photons of gamma bursts is presented. The model assumes accretion at nearly the Eddington limited rate onto a neutron star without magnetic a field. Initially soft photons are heated as they are compressed between the accreting matter and the star. A large electric field due to relatively small charge separation is required to drag electrons into the star with the nuclei against the flux of photons leaking out through the accreting matter. The photon number is not increased substantially by bremsstrahlung or any other process. Instability in an accretion disc might provide the infalling matter required.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); New Mexico Inst. of Mining and Technology, Socorro (USA); NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5668516
• Report Number(s): LA-UR-83-2586; CONF-8307104-4; ON: DE84001355
• Resource Relation: Conference: Workshop on astronomy and astrophysics, Santa Cruz, CA, USA, 10 Jul 1983
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
NEUTRON STARS
STAR ACCRETION
COSMIC GAMMA BURSTS
GAMMA SPECTRA
INSTABILITY
THEORETICAL DATA
COSMIC RADIATION
DATA
INFORMATION
IONIZING RADIATIONS
NUMERICAL DATA
PRIMARY COSMIC RADIATION
RADIATIONS
SPECTRA
STAR EVOLUTION
STARS
640103* - Astrophysics & Cosmology- Quasi-Stellar
Radio
& X-Ray Sources- (-1987)
640102 - Astrophysics & Cosmology- Stars & Quasi-Stellar
Radio & X-Ray Sources