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| Paper: |
Broad Hα Wings in Active Symbiotic Stars: The Case of Z Andromedae |
| Volume: |
362, The Seventh Pacific Rim Conference on Stellar Astrophysics |
| Page: |
228 |
| Authors: |
Skopal, A.A.; Otsuka, M.; Tamura, S.; Vittone, A.A.; Errico, L.; Wolf, M. |
| Abstract: |
During the major 2000-2003 outburst of the symbiotic prototype Z And, broad Hα wings extending to about ±2 000km s−1 developed. We fitted them with the model of a bipolar stellar wind from the hot star. We determined the corresponding mass-loss rates as 2.3×10−6MSolar yr−1 at the maximum, 3.3×10−6MSolar yr−1 during the 2002/03 re-brightening and 1.6×10−6MSolar yr−1 at the end of the outburst, in 2003 November. A possibility of Raman scattering as the responsible process for the broad Hα wings is briefly discussed. |
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