SIMBAD references

2006MNRAS.365.1215Z - Mon. Not. R. Astron. Soc., 365, 1215-1219 (2006/February-1)

Rotational velocities of the giants in symbiotic stars - I. D'-type symbiotics.

ZAMANOV R.K., BODE M.F., MELO C.H.F., PORTER J., GOMBOC A. and KONSTANTINOVA-ANTOVA R.

Abstract (from CDS):

We have measured the rotational velocities (v sini) of the mass donors in a number of D'-type symbiotic stars (SSs), using the cross-correlation function method. Four out of five D' SSs with known v sini appeared to be very fast rotators compared with the catalogues of v sini for the corresponding spectral types. At least three of these stars rotate at a substantial fraction (≳0.5) of the critical velocity. This means that at least in D'-type SSs the cool components rotate faster than isolated giants. If these binary stars are synchronized, their orbital periods should be relatively short (4-60 d). We also briefly discuss the possible origin of the rapid rotation and its connection with mass loss and dust formation.

Abstract Copyright: 2005 The Authors. Journal compilation © 2005 RAS

Journal keyword(s): binaries: symbiotic - stars: late-type - stars: rotation

CDS comments: StHα 190 = EM* StHA 190.

Simbad objects: 7

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2020.10.31-00:38:33

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