Observations of non-magnetic CP stars - Crossing boundaries

Glenn Wahlgren

    Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

    Abstract

    Abstract in Undetermined
    Observations of chemically peculiar (CP) stars have been conducted for decades and have revealed a variety of spectrum anomalies, most prominent among them are line enhancements of heavy elements. The earlier observations were limited to the optical region and the use of less sensitive detectors, yet are responsible for much of our current characterization of the CP star phenomenon. More recent observations embrace a wider expanse of the electromagnetic spectrum and employ more sensitive detectors that continue to unveil new levels of spectrum peculiarity. The traditional criteria used to distinguish normal from peculiar stars have become blurred, thus in some sense replacing the concept of peculiarity with one of continuity. This presentation will address the observations of the traditional nonmagnetic CP star groups over the past decade, paying particular attention to new avenues of research that have a bearing upon the interpretation of the atmospheres of CP stars and the origins of this phenomenon.
    Original languageEnglish
    Title of host publicationProceedings of the International Astronomical Union
    EditorsJ. Zverko, et al.
    PublisherCambridge University Press
    Pages291-300
    Volume224
    ISBN (Print)0-521-85018-5
    DOIs
    Publication statusPublished - 2005
    EventThe A-star Puzzle - Poprad, Slovakia
    Duration: 2004 Jul 82004 Jul 13

    Publication series

    Name
    Volume224

    Conference

    ConferenceThe A-star Puzzle
    Country/TerritorySlovakia
    CityPoprad
    Period2004/07/082004/07/13

    Subject classification (UKÄ)

    • Astronomy, Astrophysics and Cosmology

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