Determining the inclination of the rotation axis of a sun-like star

Laurent Gizon, S. K. Solanki

    Research output: Contribution to journalArticle

    Abstract

    Asteroseismology provides us with the possibility of determining the angle, i, between the direction of the rotation axis of a pulsating Sun-like star and the line of sight. A knowledge of i is important not just for obtaining improved stellar parameters, but also in order to determine the true masses of extrasolar planets detected from the radial velocity shifts of their central stars. By means of Monte Carlo simulations, we estimate the precision of the measurement of i and other stellar parameters. We find that the inclination angle can be retrieved accurately when i ≳ 30° for stars that rotate at least twice as fast as the Sun.

    Original languageEnglish (US)
    Pages (from-to)1009-1019
    Number of pages11
    JournalAstrophysical Journal
    Volume589
    Issue number2 I
    DOIs
    StatePublished - Jun 1 2003

    Fingerprint

    axes of rotation
    inclination
    sun
    stars
    asteroseismology
    planet
    extrasolar planets
    radial velocity
    line of sight
    simulation
    shift
    estimates
    parameter

    Keywords

    • Planetary systems
    • Stars: fundamental parameters
    • Stars: oscillations
    • Stars: rotation

    ASJC Scopus subject areas

    • Astronomy and Astrophysics
    • Space and Planetary Science

    Cite this

    Determining the inclination of the rotation axis of a sun-like star. / Gizon, Laurent; Solanki, S. K.

    In: Astrophysical Journal, Vol. 589, No. 2 I, 01.06.2003, p. 1009-1019.

    Research output: Contribution to journalArticle

    Gizon, Laurent ; Solanki, S. K. / Determining the inclination of the rotation axis of a sun-like star. In: Astrophysical Journal. 2003 ; Vol. 589, No. 2 I. pp. 1009-1019.
    @article{1c56b15cdcc54ee5a1dc1af143363992,
    title = "Determining the inclination of the rotation axis of a sun-like star",
    abstract = "Asteroseismology provides us with the possibility of determining the angle, i, between the direction of the rotation axis of a pulsating Sun-like star and the line of sight. A knowledge of i is important not just for obtaining improved stellar parameters, but also in order to determine the true masses of extrasolar planets detected from the radial velocity shifts of their central stars. By means of Monte Carlo simulations, we estimate the precision of the measurement of i and other stellar parameters. We find that the inclination angle can be retrieved accurately when i ≳ 30° for stars that rotate at least twice as fast as the Sun.",
    keywords = "Planetary systems, Stars: fundamental parameters, Stars: oscillations, Stars: rotation",
    author = "Laurent Gizon and Solanki, {S. K.}",
    year = "2003",
    month = "6",
    day = "1",
    doi = "10.1086/374715",
    language = "English (US)",
    volume = "589",
    pages = "1009--1019",
    journal = "Astrophysical Journal",
    issn = "0004-637X",
    publisher = "IOP Publishing Ltd.",
    number = "2 I",

    }

    TY - JOUR

    T1 - Determining the inclination of the rotation axis of a sun-like star

    AU - Gizon, Laurent

    AU - Solanki, S. K.

    PY - 2003/6/1

    Y1 - 2003/6/1

    N2 - Asteroseismology provides us with the possibility of determining the angle, i, between the direction of the rotation axis of a pulsating Sun-like star and the line of sight. A knowledge of i is important not just for obtaining improved stellar parameters, but also in order to determine the true masses of extrasolar planets detected from the radial velocity shifts of their central stars. By means of Monte Carlo simulations, we estimate the precision of the measurement of i and other stellar parameters. We find that the inclination angle can be retrieved accurately when i ≳ 30° for stars that rotate at least twice as fast as the Sun.

    AB - Asteroseismology provides us with the possibility of determining the angle, i, between the direction of the rotation axis of a pulsating Sun-like star and the line of sight. A knowledge of i is important not just for obtaining improved stellar parameters, but also in order to determine the true masses of extrasolar planets detected from the radial velocity shifts of their central stars. By means of Monte Carlo simulations, we estimate the precision of the measurement of i and other stellar parameters. We find that the inclination angle can be retrieved accurately when i ≳ 30° for stars that rotate at least twice as fast as the Sun.

    KW - Planetary systems

    KW - Stars: fundamental parameters

    KW - Stars: oscillations

    KW - Stars: rotation

    UR - http://www.scopus.com/inward/record.url?scp=0042788831&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=0042788831&partnerID=8YFLogxK

    U2 - 10.1086/374715

    DO - 10.1086/374715

    M3 - Article

    VL - 589

    SP - 1009

    EP - 1019

    JO - Astrophysical Journal

    JF - Astrophysical Journal

    SN - 0004-637X

    IS - 2 I

    ER -