The hot R Coronae Borealis star DY Centauri is a binary

Autor:	Rao, N. Kameswara, Lambert, David L., Garcia-Hernandez, D. A., Jeffery, C. Simon, Woolf, Vincent M., McArthur, Barbara
Rok vydání:	2012
Předmět:	Astrophysics - Solar and Stellar Astrophysics
Druh dokumentu:	Working Paper
DOI:	10.1088/2041-8205/760/1/L3
Popis:	The remarkable hot R Coronae Borealis star DY Cen is revealed to be the first and only binary system to be found among the R Coronae Borealis (RCB) stars and their likely relatives, including the Extreme Helium stars and the hydrogen-deficient carbon stars. Radial velocity determinations from 1982-2010 have shown DY Cen is a single-lined spectroscopic binary in an eccentric orbit with a period of 39.67 days. It is also one of the hottest and most H-rich member of the class of RCB stars. The system may have evolved from a common-envelope to its current form. Comment: Published in The Astrophysical Journal Letters; one missing reference has been added in order to fit the published version ApJ, 760, L3
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1210.4199 Zobrazit plný text záznamu View this record from Arxiv