PROBING THE MASS-LOSS HISTORY OF THE YELLOW HYPERGIANT IRC+10420

@article{DinhVTrung2009PROBINGTM,
  title={PROBING THE MASS-LOSS HISTORY OF THE YELLOW HYPERGIANT IRC+10420},
  author={Dinh-V-Trung and S. Muller and Jeremy Lim and Sun Kwok and C. Muthu},
  journal={The Astrophysical Journal},
  year={2009},
  volume={697},
  pages={409-419}
}
We have used the submillimeter array to image the molecular envelope around the yellow hypergiant IRC+10420. Our observations reveal a large and clumpy expanding envelope around the star. The molecular envelope shows a clear asymmetry in {sup 12}CO J = 2-1 emission in the southwest direction. The elongation of the envelope is found even more pronounced in the emission of {sup 13}CO J = 2-1 and SO J {sub K} = 6{sub 5}-5{sub 4}. A small positional velocity gradient across velocity channels is… Expand
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