Numerical simulation of the magnetospheric gate model for the x-ray bursters

Conference · Thu Jan 01 00:00:00 EST 1981

DOI:https://doi.org/10.1063/1.33232· OSTI ID:6139865

Starrfield, S G; Kenyon, S; Truran, J W; Sparks, W M

A Lagrangian, fully implicit, one-dimensional hydrodynamic computer code was used to investigate the evolution of a gas cloud impacting the surface of a 20 km, 1 Msub solar neutron star. This gas is initially at rest with respect to the surface of the neutron star, extends to 185 km above the surface, and is optically thick. The infall results in a burst which lasts about 0.1 seconds and reaches a peak luminosity and effective temperature of 2.4 x 10/sup 5/ Lsub solar and 9 x 10/sup 6/; respectively. The burst was followed by a phase of oscillations with a period 0.2 seconds.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Arizona State Univ., Tempe (USA). Dept. of Physics; Illinois Univ., Urbana (USA). Dept. of Astronomy; NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6139865
• Report Number(s): LA-UR-81-2685; CONF-810871-3; ON: DE82000581; TRN: 82-001122
• Resource Relation: Journal Volume: 77; Conference: Workshop on gamma ray transients and related astrophysical phenomena, La Jolla, CA, USA, 5 Aug 1981
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC X-RAY SOURCES
COMPUTERIZED SIMULATION
NEUTRON STARS
X RADIATION
BINARY STARS
COSMIC GASES
LUMINOSITY
STAR ACCRETION
STAR EVOLUTION
ULTRAHIGH TEMPERATURE
COSMIC RAY SOURCES
ELECTROMAGNETIC RADIATION
FLUIDS
GASES
IONIZING RADIATIONS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
RADIATIONS
SIMULATION
STARS
640103* - Astrophysics & Cosmology- Quasi-Stellar
Radio
& X-Ray Sources- (-1987)