Properties of the molecular clump and the associated ultracompact H II region in the gas shell of the expanding H II region Sh 2-104

Young Chol Minh, Kee Tae Kim, Chi Hung Yan, Yong Sun Park, Seokho Lee, Dharam Vil Lal, Tatsuhiko Hasegawa, X. Z. Zhang, Yi Jeng Kuan

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    We study the physical and chemical properties of the molecular clump hosting a young stellar cluster, IRAS 20160+3636, which is believed to have formed via the "collect and collapse" process. Physical parameters of the UC H ii region associated with the embedded cluster are measured from the radio continuum observations. This source is found to be a typical Galactic UC H ii region, with a B0.5 type exciting star, if it is ionized by a single star. We derive a CN/HCN abundance ratio larger than 1 over this region, which may suggest that this clump is being affected by the UV radiation from the H ii region.

    Original languageEnglish
    Pages (from-to)179-185
    Number of pages7
    JournalJournal of the Korean Astronomical Society
    Volume47
    Issue number5
    DOIs
    Publication statusPublished - 2014 Oct 1

    Keywords

    • ISM: Abundances
    • ISM: HII regions
    • ISM: Molecules
    • Individual: Sh 2-104

    ASJC Scopus subject areas

    • Astronomy and Astrophysics
    • Space and Planetary Science

    Fingerprint Dive into the research topics of 'Properties of the molecular clump and the associated ultracompact H II region in the gas shell of the expanding H II region Sh 2-104'. Together they form a unique fingerprint.

    Cite this