ACCRETION FLOW AND DISPARATE PROFILES OF RAMAN SCATTERED O VI λλ 1032, 1038 IN THE SYMBIOTIC STAR V1016 CYGNI
نویسندگان
چکیده
منابع مشابه
Raman Scattered O Vi Λ 6825 and the Accretion Disk Emission Model in the Symbiotic Stars V1016 Cygni and Hm Sagittae
We present the high resolution spectra of the D type symbiotic stars V1016 Cygni and HM Sagittae obtained with the Bohyunsan Optical Echelle Spectrograph (BOES), and investigate the doublepeaked asymmetric profiles of the Raman scattered O VI 6825. This feature is formed through Raman scattering of O VI 1032 by atomic hydrogen with small scattering cross section of ∼ 10 cm, requiring a specific...
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Symbiotic stars are binary systems consisting of a hot star, typically a white dwarf, and a cool giant companion. The wind from the cool star is ionized by the radiation from the hot star, resulting in the characteristic combination of sharp nebular emission lines and stellar molecular absorption bands in the optical spectrum. Most of the emission lines are readily identifiable with common ions...
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In this paper, we argue that in the symbiotic star RR Tel the existence of an accretion disk around the hot companion is strongly implied by the characteristic features exhibited by the Raman-scattered O VI lines around 6830 Å and 7088 Å. High degrees of polarization and double-peaked profiles in the Raman-scattered lines and single-peak profiles for other emission lines are interpreted as line...
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A Monte Carlo method is used to calculate the profiles and the polarization of the Raman scattered O VI lines (λλ6827, 7088) in symbiotic stars, which are believed to be a binary system of a cool giant and a hot star with an emission nebula around it. A point-like isotropic UV radiation source is assumed and a simple spherical wind model is adopted for the kinematics of the scattering material ...
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ژورنال
عنوان ژورنال: Journal of The Korean Astronomical Society
سال: 2015
ISSN: 1225-4614
DOI: 10.5303/jkas.2015.48.2.105