IUE observations and physical processes of interacting binary stars

Details IUE observations and physical processes of interacting binary stars IUE observations and physical processes of interacting binary stars

Jun 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988esasp.281a..67s&link_type=abstract

In ESA, A Decade of UV Astronomy with the IUE Satellite, Volume 1 p 67-76 (SEE N89-10682 01-89)

Astronomy and Astrophysics

Astronomy

1

Binary Stars, Iue, Spaceborne Astronomy, Ultraviolet Astronomy, Accretion Disks, Stellar Activity, Stellar Evolution

Scientific paper

The IUE was used to study processes connected with accretion disk structure and stability, wind accretion and wind-wind collisions, contact systems, and stellar activity in close binary stars. Time dependent phenomena already known from optical studies appear to be even more important in the ultraviolet. The systems show flows which are unstable on timescales of single orbits, variable winds, tidally-induced phenomena, and unstable stellar components. Given that many of the physical processes in interacting binary systems may be nonlinear and highly dependent on the specific details of individual systems, and even on specific times of observation, the reliability of single object analyses and short timescale studies is called into question. Conservative models for mass transfer between components, steady or otherwise, are wrong and need to be corrected in order to properly understand binary star evolution.

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