BIROn - Birkbeck Institutional Research Online

    High resolution observations of interstellar Na I towards HD 174632

    Crawford, Ian (1988) High resolution observations of interstellar Na I towards HD 174632. Monthly Notices of the Royal Astronomical Society 233 (4), pp. 923-928. ISSN 0035-8711.

    [img]
    Preview
    Text (Refereed)
    High-resolution observations of interstellar Na I towards HD 174632.pdf - Published Version of Record

    Download (153kB) | Preview

    Abstract

    High-resolution observations of interstellar Na I towards the relatively nearby (180 pc) and lightly reddened, [E(B−V)=0.12] B8V star HD 174632 are presented. There are two distinct interstellar cloud components in this line-of-sight, with heliocentric velocities of about −4.4 and −17.6 km s−1. A third, much weaker, component at about −21.7 km s−1 also appears to be present. Na I column densities for these components have been obtained by line-profile fitting, and estimates have been made of the N(Na I)/N(H) ratios. These are found to be consistent with standard diffuse interstellar clouds. Arguments are presented that these clouds are associated with the boundary between the local low-density interstellar bubble and the neighboring Loop I bubble, at a distance between about 50 and 100 pc from the Sun.

    Metadata

    Item Type: Article
    School: Birkbeck Schools and Departments > School of Science > Earth and Planetary Sciences
    Depositing User: Sarah Hall
    Date Deposited: 20 Aug 2019 08:42
    Last Modified: 22 Aug 2019 04:17
    URI: http://eprints.bbk.ac.uk/id/eprint/28648

    Statistics

    Downloads
    Activity Overview
    78Downloads
    33Hits

    Additional statistics are available via IRStats2.

    Archive Staff Only (login required)

    Edit/View Item Edit/View Item