Spiral-shells and nascent bipolar outflow in CIT 6: Hints for an eccentric-orbit binary?

Hyosun Kim, Sheng Yuan Liu, Naomi Hirano, Ronny Zhao-Geisler, Alfonso Trejo, Hsi Wei Yen, Ronald E. Taam, Francisca Kemper, Jongsoo Kim, Do Young Byun, Tie Liu

Research output: Contribution to journalConference article

Abstract

We present the essential results pointed out in a recently published paper, Kim et al. 2015, Astrophys. J., 814, 61. The carbon star CIT 6 reveals evidences for a binary in a high-resolution CO line emission map of its circumstellar envelope taken with the Submillimeter Array. The morphology of the outflow described by the spiral-shell pattern, bipolar (or possibly multipolar) outflow, one-sided interarm gaps, and double spiral feature point to a plausible scenario that CIT 6 is a binary system in an eccentric orbit with the mass losing star evolving from the AGB.

Original languageEnglish (US)
Article number072018
JournalJournal of Physics: Conference Series
Volume728
Issue number7
DOIs
StatePublished - Aug 8 2016
Event11th Pacific Rim Conference on Stellar Astrophysics: Physics and Chemistry of the Late Stages of Stellar Evolution - Hong Kong, China
Duration: Dec 14 2015Dec 17 2015

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Kim, H., Liu, S. Y., Hirano, N., Zhao-Geisler, R., Trejo, A., Yen, H. W., Taam, R. E., Kemper, F., Kim, J., Byun, D. Y., & Liu, T. (2016). Spiral-shells and nascent bipolar outflow in CIT 6: Hints for an eccentric-orbit binary? Journal of Physics: Conference Series, 728(7), [072018]. https://doi.org/10.1088/1742-6596/728/7/072018