Published April 1977
| Version v1
Report
Cyg X-3: γ-rays from a magnetic accretion disc
Description
In this letter we show that the observed γ-ray luminosity can be produced by an accretion disc around a non-magnetic neutron star or low mass black hole in which the dominant dissipative process in the disc is due to magnetic fields. The shearing motion of the disc increases the azimuthal field strength in the disc until the magnetic pressure is comparable to thermal (or radiation) pressures in the disc. (orig./BJ)
Availability note (English)
Available from ZAED.Abstract (German)
Es wird gezeigt, dass die beobachtete γ-Luminositaet durch Massenaufsammlung in einer Scheibe um einen nichtmagnetischen Neutronenstern oder ein schwarzes Loch niedriger Masse, bei dem der dominante dissipative Prozess in der Scheibe von Magnetfeldern herruehrt, erzeugt werden kann. Die Scherbewegung der Scheibe erhoeht die azimuthale Feldstaerke in der Scheibe bis der magnetische Druck vergleichbar ist mit dem thermischen Druck in der Scheibe. (orig./BJ)Additional details
Publishing Information
- Imprint Pagination
- 5 p.
- Report number
- MPI-PAE/Astro--114
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 8339285
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Resource subtype / Literary indicator
- Non-conventional Literature
- Descriptors DEI
- BLACK HOLES; COSMIC GAMMA SOURCES; GAMMA RADIATION; LUMINOSITY; MAGNETIC FIELDS; NEUTRON STARS; PRESSURE DEPENDENCE; PRIMARY COSMIC RADIATION; STAR ACCRETION
- Descriptors DEC
- COSMIC RADIATION; COSMIC RAY SOURCES; ELECTROMAGNETIC RADIATION; IONIZING RADIATIONS; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; RADIATIONS; STAR EVOLUTION; STARS
Optional Information
- Notes
- 12 refs. To be published in Nature (London).