Spiral shocks and subday variability in SS 433

Details Spiral shocks and subday variability in SS 433 Spiral shocks and subday variability in SS 433

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...390..639c&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 390, no. 2, May 10, 1992, p. 639-644.

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11

Accretion Disks, Hydrodynamics, Shock Waves, Stellar Spectra, Variable Stars, Black Body Radiation, Computational Astrophysics, Computerized Simulation, Spectrum Analysis, Two Dimensional Models

Scientific paper

A two-dimensional numerical simulation of fluid hydrodynamics in the accretion disk of the SS 433 system is performed. It is shown that the disk must have quasi-stationary two-armed spiral shocks. The blackbody spectrum of the disk is calculated. The spectrum clearly shows subday variabilities in the optical component. Future observation of such a variability could throw more light on the nature of the SS 433 system. It is suggested that the spiral shocks provide the necessary viscosity to sustain a supercritical accretion.

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