Accretion turnoff and rapid evaporation of very light secondaries in low-mass X-ray binaries
1989; IOP Publishing; Volume: 336; Linguagem: Inglês
10.1086/167029
ISSN1538-4357
AutoresM. Ruderman, J. Shaham, M. Tavani,
Tópico(s)Mechanics and Biomechanics Studies
Resumoview Abstract Citations (243) References (27) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Accretion Turnoff and Rapid Evaporation of Very Light Secondaries in Low-Mass X-Ray Binaries Ruderman, M. ; Shaham, J. ; Tavani, M. Abstract The illumination of companion stars in very low mass X-ray binaries by various kinds of radiation from the neighborhood of the neutron star after accretion has terminated or during accretion is considered. If a neutron star's spun-up period approaches 0.001 s, pulsar kHz radiation can quench accretion by pushing surrounding plasma away from the neutron star, and may leave the companion to be evaporated by the high-energy radiation component expected from an 'isolated' millisecond radiopulsar. Expected accretion-powered MeV gamma-rays and e(+ or -) winds may also be effective in evaporating dwarf companions. Neutron star spin-down energy release may sustain the power in these radiation mechanisms even while accretion falls. Accretion-powered soft X-rays may speed the mass loss of highly evolved dwarf companions, particularly those with a large fraction of carbon and oxygen. Publication: The Astrophysical Journal Pub Date: January 1989 DOI: 10.1086/167029 Bibcode: 1989ApJ...336..507R Keywords: Neutron Stars; Stellar Magnetic Fields; Stellar Mass; Stellar Mass Accretion; X Ray Binaries; Gamma Rays; Pulsars; Pulse Duration; Stellar Evolution; Astrophysics; GAMMA RAYS: GENERAL; PULSARS; STARS: ACCRETION; STARS: EVOLUTION; STARS: NEUTRON; X-RAYS: BINARIES full text sources ADS | data products SIMBAD (5)
Referência(s)