Other
Scientific paper
Dec 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994aas...185.2109r&link_type=abstract
American Astronomical Society, 185th AAS Meeting, #21.09; Bulletin of the American Astronomical Society, Vol. 26, p.1345
Other
2
Scientific paper
The technique of Doppler Tomography has been used to reconstruct images of the accretion regions in the short-period Algol-type binaries RS Vul, U Sge, U CrB, beta Per, S Equ, TX UMa and SW Cyg. Hα difference profiles of these systems show single and/or double-peaked emission features at most phases outside of primary eclipse, and absorption features throughout primary eclipse, except at mid-eclipse. A Back Projection Tomography code was used to generate the sources of Hα emission in the orbital plane of the binary. The tomograms show clear evidence of a gas flow along the predicted free-fall path of the gas stream as well as asymmetric disk-like structures both on and around the mass gainer. Another source of Hα emission is associated with the cool magnetically active secondary. The gas stream source was strongest in U CrB while the disk emission was strongest in SW Cyg. Observations of U Sge in June 1993 show evidence of a strong almost Keplerian accretion disk, but in June 1994 the emission from this binary was predominantly from the gas stream. The disk emission seen in the Algols is reminiscent of that seen in the cataclysmic variables (e.g., U Gem).
Albright Geary E.
Bowles Larissa M.
Richards Mercedes T.
No associations
LandOfFree
Doppler Tomography of Accretion Regions in Algol Binaries does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Doppler Tomography of Accretion Regions in Algol Binaries, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Doppler Tomography of Accretion Regions in Algol Binaries will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1318990