The interacting binary V 393 Scorpii: another clue for Double Periodic Variables
arXiv:0911.0691 · doi:10.1017/S1743921310003376
Abstract
We give a brief report on spectroscopic properties of V 393 Scorpii. H alfa emission and shape and radial velocity of He I 5875 are modulated with the long cycle. The long cycle is explained as a relaxation cycle in the circumprimary disc, that cumulates the mass transferred from the donor until certain instability produces disc depletion.
2 pages, 2 figures in encapsulated postscript format. To be published in Proceedings IAU Symposium No.262, 2009