Tentative detection of cyclopropenylidene in comets

Yo Ling Chuang*, Yi Jehng Kuan*, Steven B. Charnley

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

摘要

We report the tentative detection of the ring molecule cyclopropenylidene (c-C3H2) in cometary comae. We observed three short-period comets: 73P/Schwassmann–Wachmann 3, 17P/Holmes, 103P Hartley 2, and two Oort Cloud comets: C/2007 N3 (Lulin) and C/2012 F6 (Lemmon) with the Arizona Radio Observatory Submillimeter Telescope (SMT) and the Atacama Large Millimeter/submillimeter Array (ALMA). We tentatively detected c-C3H2 in three of the comets, with molecule production rates in the range of (0.2–3.8) × 1025 molecules s−1, and c-C3H2/H2O mixing ratios of 0.01–0.19 per cent. Evidence from both the single-dish and interferometric data points to the presence of c-C3H2 being of a discrete transient nature and exhibiting an extended spatial distribution, indicating production from the decomposition of organic dust particles in the coma.

原文英語
頁(從 - 到)3439-3447
頁數9
期刊Monthly Notices of the Royal Astronomical Society
534
發行號4
DOIs
出版狀態已發佈 - 2024 11月 1

ASJC Scopus subject areas

  • 天文和天體物理學
  • 空間與行星科學

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