Mass-loss rate by the Mira in the symbiotic binary V1016 Cygni from Raman scattering

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 1025Å --> 6545Å 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.

arXiv comment8 pages, 8 figures, 2 tables

References in corpus (13)

• Mass loss from hot massive stars
• AGB Stars in the Fornax Dwarf Spheroidal Galaxy
• The Local Group Galaxy NGC 6822 and its Asymptotic Giant Branch Stars
• Broad H-alpha wings from the optically thin stellar wind of the hot components in symbiotic binaries
• Raman-Scattering Wings of H alpha in Symbiotic Stars
• On the effect of emission lines on the UBVR photometry
• Raman Scattered O VI $\lambda$ 6825 and the Accretion Disk Emission Model in the Symbiotic Stars V1016 Cygni and HM Sagittae
• Raman Scattered He II Line in the Planetary Nebula M2-9 and the Symbiotic Stars RR Telescopii and He 2-106
• The central binary and surrounding nebula of the symbiotic star V1016 Cygni
• Electron optical depths and temperatures of symbiotic nebulae from Thomson scattering
• Multiwavelength evidence for a 15-year periodic activity in the symbiotic nova V1016 Cygni
• On the Center Shifts of Raman Scattered He II and H$\alpha$ Wings in Symbiotic Stars
• Raman Scattered He II $\lambda$ 6545 Line in the Symbiotic Star V1016 Cygni

Cited by in corpus (7)

• New outburst of the symbiotic nova AG Peg after 165 years
• The Discovery of Raman Scattering in HII Regions
• RAMSES II - RAMan Search for Extragalactic Symbiotic Stars. Project concept, commissioning, and early results from the science verification phase
• Flickering in AGB stars: Probing the nature of accreting companions
• Stellar Wind Accretion and Raman Scattered O VI Features in the Symbiotic Star AG Draconis
• LIN 358: A symbiotic binary accreting above the steady hydrogen fusion limit
• A Monte Carlo Study of Flux Ratios of Raman Scattered O~VI Features at 6825 Å and 7082 Å in Symbiotic Stars