Recent progress in understanding the eruptions of classical novae

Details Recent progress in understanding the eruptions of classical novae Recent progress in understanding the eruptions of classical novae

Oct 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988stin...9015870s&link_type=abstract

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Physics

Dwarf Novae, Globular Clusters, Hydrodynamics, Matter (Physics), Binary Data, Chemical Composition, Diagnosis, Main Sequence Stars, Mass, Simulation, Three Dimensional Models, X Rays

Scientific paper

Dramatic progress has occurred in the last two decades in understanding the physical processes and events leading up to, and transpiring during the eruption of a classical nova. The mechanism whereby a white dwarf accreting hydrogen-rich matter from a low-mass main-sequence companion produces a nova eruption has been understood since 1970. The mass-transferring binary stellar configuration leads inexorably to thermonuclear runaways detected at distances of megaparsecs. Summarized here are the efforts of many researchers in understanding the physical processes which generate nova eruptions; the effects upon nova eruptions of different binary-system parameters (e.g., chemical composition or mass of the white dwarf, different mass accretion rates); the possible metamorphosis from dwarf to classical novae and back again; and observational diagnostics of novae, including x ray and gamma ray emission, and the characteristics and distributions of novae in globular clusters and in extragalactic systems. While the thermonuclear-runaway model remains the successful cornerstone of nova simulation, it is now clear that a wide variety of physical processes, and three-dimensional hydrodynamic simulations, will be needed to explain the rich spectrum of behavior observed in erupting novae.

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