6533b7dafe1ef96bd126f485

RESEARCH PRODUCT

A three-dimensional smoothed particle hydrodynamics simulation of the active phase of SS Cyg-type discs and its implications for the mass transfer burst model

Gaetano BelvedereDiego MolteniG. Lanzafame

subject

PhysicsComputer simulationAstrophysics::High Energy Astrophysical PhenomenaCataclysmic variable starAstronomy and AstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysicsOrbital periodInstabilityAccretion (astrophysics)Smoothed-particle hydrodynamicsSpace and Planetary ScienceMass transferAstrophysics::Solar and Stellar AstrophysicsAstrophysics::Earth and Planetary AstrophysicsDwarf novaAstrophysics::Galaxy Astrophysics

description

We perform a smoothed particle hydrodynamics (SPH) three-dimensional simulation of the outburst phase of the accretion disc of a typical SS Cyg-like dwarf nova in the framework of the mass transfer burst model (MTBM), where we assume that the active phase is triggered by a sudden increase in the accretion rate due to some instability in the secondary's atmosphere. The evolution of the accretion disc is followed for a single orbital period, starting from the initial quiescent disc configuration obtained by us in a previous paper. This is a suitable integration time for determining the geometrical and physical properties of the disc in the impulsive phase and is comparable with observed outburst time-scales

yearjournalcountryeditionlanguage
1993-08-15Monthly Notices of the Royal Astronomical Society
https://doi.org/10.1093/mnras/263.4.839