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Article overview
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Mass-loss rate by the Mira in the symbiotic binary V1016 Cygni from Raman scattering | | Matej Sekeráš
; Augustin Skopal
; | | Date: |
28 Oct 2015 | | Abstract: | The mass-loss rate from Mira variables represents a key parameter in our
understanding of their evolutionary tracks. We introduce a method for
determining the mass-loss rate from the Mira component in D-type symbiotic
binaries via the Raman scattering of atomic hydrogen in the wind from the
giant. Using our method, we investigated Raman HeII 1025AA --> 6545AA
conversion in the spectrum of the symbiotic Mira V1016 Cyg. We determined its
efficiency to be 0.102 and 0.148, and the corresponding mass-loss rate 2.0
(+0.1/-0.2) x 1E-6 and 2.7 (+0.2/-0.1) x 1E-6 M(Sun)/year, using our spectra
from 2006 April and 2007 July,respectively. Our values of the mass-loss rate
that we derived from Raman scattering are comparable with those obtained
independently by other methods. Applying the method to other Mira-white dwarf
binary systems can provide a necessary constraint in the calculation of
asymptotic giant branch evolution. | | Source: | arXiv, 1510.8356 | | Services: | Forum | Review | PDF | Favorites | |
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