Doppler tomography of the gas stream in short-period Algol binaries

Details Doppler tomography of the gas stream in short-period Algol binaries Doppler tomography of the gas stream in short-period Algol binaries

Jan 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995apj...438l.103r&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 438, no. 2, p. L103-L106

Astronomy and Astrophysics

Astrophysics

32

Accretion Disks, Angular Momentum, Astrophysics, Binary Stars, Emission Spectra, Gas Streams, H Alpha Line, Image Reconstruction, Astronomical Observatories, Doppler Effect, Imaging Techniques, Roche Limit, Telescopes, Tomography

Scientific paper

Doppler tomography of H alpha difference profiles of four short-period Algol-type binaries has revealed the gas stream due to Roche lobe overflow and disklike structures around the mass gainer. The position of the gas stream in the Doppler tomogram closely follows the predicted free fall path from the inner Lagrangian point in the rotating reference frame. In U CrB, U Sge, RS Vul, and beta Per, the disklike structures in the tomograms are asymmetric distributions of gas extending out to several times the synchronous rotation rate of the primary star. These tomograms display the first distinct 'images' of gas streams in the Algols, and in the entire class of interacting binaries.

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