Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    Probing the Structure of Kepler ZZ Ceti Stars with Full Evolutionary Models-based Asteroseismology

    271966.pdf (1.298Mb)
    Access Status
    Open access
    Authors
    Romero, A.
    Córsico, A.
    Castanheira, B.
    Gerónimo, F.
    Kepler, S.
    Koester, D.
    Kawka, Adela
    Althaus, L.
    Hermes, J.
    Bonato, C.
    Gianninas, A.
    Date
    2017
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Romero, A. and Córsico, A. and Castanheira, B. and Gerónimo, F. and Kepler, S. and Koester, D. and Kawka, A. et al. 2017. Probing the Structure of Kepler ZZ Ceti Stars with Full Evolutionary Models-based Asteroseismology. Astrophysical Journal. 851 (1): Article ID 60.
    Source Title
    Astrophysical Journal
    DOI
    10.3847/1538-4357/aa9899
    ISSN
    0004-637X
    School
    Curtin Institute of Radio Astronomy (Physics)
    Remarks

    This is an author-created, un-copy edited version of an article accepted for publication in Astrophysical Journal. The publisher is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at 10.3847/1538-4357/aa9899

    URI
    http://hdl.handle.net/20.500.11937/72468
    Collection
    • Curtin Research Publications
    Abstract

    We present an asteroseismological analysis of four ZZ Ceti stars observed with the Kepler spacecraft: GD 1212, SDSS J113655.17+040952.6, KIC 11911480, and KIC 4552982, based on a grid of full evolutionary models of DA white dwarf (WD) stars. We employ a grid of carbon–oxygen core models, characterized by a detailed and consistent chemical inner profile for the core and the envelope. In addition to the observed periods, we take into account other information from the observational data, such as amplitudes, rotational splittings, and period spacing, as well as photometry and spectroscopy. For each star, we present an asteroseismological model that closely reproduces their observed properties. The asteroseismological stellar mass and effective temperature of the target stars are (0.632 0.027 ± M☉, 10737 ± 73 K) for GD 1212, (0.745 0.007 ± M☉, 11110 ± 69 K) for KIC 4552982, (0.5480 0.01 ± M☉, 12,721 ± 228 K) for KIC11911480, and (0.570 0.01 ± M☉, 12,060 ± 300 K) for SDSS J113655.17+040952.6. In general, the asteroseismological values are in good agreement with the spectroscopy. For KIC 11911480 and SDSS J113655.17+040952.6 we derive a similar seismological mass, but the hydrogen envelope is an order of magnitude thinner for SDSS J113655.17+040952.6, which is part of a binary system and went through a common envelope phase.

    Related items

    Showing items related by title, author, creator and subject.

    • Supernova remnant mass accumulated during the star formation history of the z = 3.8 radio galaxies 4c41.17 and TN J2007-1316
      Rocca-Volmerange, B.; Drouart, Guillaume; Breuck, C. (2015)
      In this paper, we show that the supernova remnant (SNR) masses accumulated from core-collapse supernovae (SNe) along the star formation history of two powerful z = 3.8 radio galaxies, 4C41.17 and TN J2007-1316, reach up ...
    • The molecular gas content of ULIRG type 2 quasars at z < 1
      Rodríguez, M.; Villar-Martín, M.; Emonts, B.; Humphrey, A.; Drouart, Guillaume; García Burillo, S.; Pérez Torres, M. (2014)
      We present new results of CO(1-0) spectroscopic observations of four Sloan Digital Sky Survey (SDSS) type 2 quasars (QSO2) at z ~ 0.3, observed with the 30-m IRAM radio telescope. The QSO2 have infrared luminosities in ...
    • A Candidate Massive Black Hole in the Low-Metallicity Dwarf Galaxy Pair Mrk 709
      Reines, A.; Plotkin, R.; Russell, Thomas; Mezcua, M.; Condon, J.; Sivakoff, G.; Johnson, K. (2014)
      The incidence and properties of present-day dwarf galaxies hosting massive black holes (BHs) can provide important constraints on the origin of high-redshift BH seeds. Here we present high-resolution X-ray and radio ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.