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Author Ergma, E. V.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ BINARY STARS ♦ COSMIC X-RAY BURSTS ♦ GRAVITATIONAL WAVES ♦ ORBITS ♦ NEUTRON STARS ♦ STAR ACCRETION ♦ STAR BURNING ♦ X-RAY SOURCES ♦ HELIUM ♦ COSMIC RAY SOURCES ♦ COSMIC X-RAY SOURCES ♦ ELEMENTS ♦ EQUIPMENT ♦ FLUIDS ♦ GASES ♦ NONMETALS ♦ RADIATION SOURCES ♦ RARE GASES ♦ STAR EVOLUTION ♦ STARS ♦ X-RAY EQUIPMENT 640103* -- Astrophysics & Cosmology-- Quasi-Stellar, Radio, & X-Ray Sources-- (-1987) ♦ Astrophysics & CosmologyStars & Quasi-Stellar, Radio & X-Ray Sources
Abstract Observational data for two bursters, MXB 1636-53 and MXB 1916-05, are examined in light of two premises: that the short-period close binary systems which they represent are evolving by gravitational-wave emission, and that their x-ray bursts constitute flashes of thermonuclear burning on the surface of an accreting neutron star in the system. In MXB 1636-53 the secondary component may be a roughly-equal-0.6 M/sub sun/ nondegenerate hydrogen dwarf, with accretion taking place onto a ''hot'' neutron star at a near-critical rate for the formation of a pure helium shell (that is, with Z/sub CNO/< or approx. =0.08). For MXB 1916-05 it is hard to accommodate both the theoretical assumptions, especially if Zroughly-equalZ/sub sun//17.
Educational Use Research
Learning Resource Type Article
Publisher Date 1983-03-01
Publisher Place United States
Journal Sov. Astron. Lett.
Volume Number 9
Issue Number 2
Organization Astronomical Council, USSR Academy of Sciences, Moscow


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