Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aspc..348..257p&link_type=abstract
Astrophysics in the Far Ultraviolet: Five Years of Discovery with FUSE ASP Conference Series, Vol. 348, Proceedings of the Confe
Astronomy and Astrophysics
Astrophysics
Scientific paper
The FUSE spacecraft has provided us with new insights into the physics of accretion and mass flow in the Algol binaries. Highlights from eclipse/totality observations of three systems with B-type primaries (V356 Sgr, TT Hya, and RY Per) are presented. The location of the hot circumstellar plasma that produces prominent emission lines from C III, N II, N III, O VI, Si III, Si IV, and Fe III has been mapped. The O VI region is located well outside the orbital plane with a component formed near the site of the gas stream impact but the moderate-ionization species appear to originate in the accretion disk. It is argued that the flow perpendicular to the orbital plane is caused from a splash of material as the gas stream impacts the mass gainer's photosphere or inner accretion disk.
Peters Geraldine Joan
Polidan Ronald S.
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