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| Paper: |
Interaction between AGB Wind and Nova Outburst: The Case of
V407 Cyg, a Symbiotic Star |
| Volume: |
445, Why Galaxies Care about AGB Stars II: Shining Examples and Common Inhabitants |
| Page: |
319 |
| Authors: |
Deguchi, S.; Koike, K.; Kuno, N.; Takahashi, S.; Matsunaga, N.; Nakashima, J. |
| Abstract: |
We report on the time variation of SiO maser emission from the symbiotic
star V407 Cyg after the classical nova outburst with concurrent
γ-ray emission in 2010 March. The SiO J=1–0, v=2 line at
42.821 GHz has been detectable persistently, but the line profile
exhibited a dramatic change two weeks after the outburst. A new persistent
component appeared at the lower velocity side in the spectrum three weeks
later. The observation indicates that the SiO emitting regions were
terminated in a time-scale of two weeks by the hot wind of the nova, but
the region was replenished quickly by cool molecular gases expelled from
the mira, possibly through the first Lagrangian point of the binary system. |
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