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FUSE Observations of EC14026 Stars

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Abstract

We present a FUSE abundance analysis of EC14026 stars. We compare the abundances of heavy elements in the atmospheres of EC14026 stars to non-pulsating stars with similar atmospheric parameters, and investigate whether weak stellar winds could explain the coexistence of variable and non-variable sdB stars in the log g – Teff diagram. We also present preliminary results on time-dependent diffusion calculations of iron in presence of radiative levitation and mass loss, and show how weak stellar winds can affect the diffusive equilibrium between gravitational settling and radiative support.

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References

  • Bergeron, P., Wesemael, F., Michaud, G. and Fontaine, G.: 1988,ApJ 332, 964.

    CAS  Google Scholar 

  • Bill‘eres, M., Fontaine, G., Brassard, P. and Liebert, J.: 2002, ApJ 578, 515.

    Google Scholar 

  • Charpinet, S., Fontaine, G. and Brassard, P.: 2001, PASP 113, 775.

    Google Scholar 

  • Charpinet, S., Fontaine, G., Brassard, P., Chayer, P., Rogers, F.J., Iglesias, C.A. and Dorman, B.: 1997, ApJ 483, L123.

    Google Scholar 

  • Fontaine, G. and Chayer, P.: 1997, in: A. Philip, J. Liebert, and R. Saffer (eds). Third Conf. on Faint Blue Stars (Schenectady: Davis), 169.

  • Kilkenny, D., Koen, C., O’Donoghue, D. and Stobie, R.S.: 1997, MNRAS 285, 640.

    Google Scholar 

  • Koen, C., Kilkenny, D., O’Donoghue, D., van Wyk, F. and Stobie, R.S.: 1997, MNRAS 285, 645.

    Google Scholar 

  • Michaud, G., Bergeron, P., Heber, U. and Wesemael, F.: 1989, ApJ 338, 417.

    Google Scholar 

  • Michaud, G., Bergeron, P., Wesemael, F. and Fontaine, G.: 1985, ApJ 299, 741.

    CAS  Google Scholar 

  • O’Donoghue, D., Lynas-Gray, A.E., Kilkenny, D., Koen, C. and Stobie, R.S.: 1997, MNRAS 285, 657.

    Google Scholar 

  • O’Toole, S.J., Heber, U., Chayer, P., Fontaine, G., O’Donoghue, D. and Charpinet, S.: 2004, in: P.F.L. Maxted (eds.), Extreme Horizontal Branch Stars and Related Objects, Ap&SS 291, 427.

  • Stobie, R.S., Kawaler, S.D., Kilkenny, D., O’Donoghue, D. and Koen, C.: 1997, MNRAS 285, 651.

    Google Scholar 

  • Unglaub, K. and Bues, I.: 1998,A&A 338, 75.

    Google Scholar 

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Authors and Affiliations

  1. Bloomberg Center for Physics and Astronomy, Johns Hopkins University, 3400 N Charles St., Baltimore, MD, USA

    P. Chayer & J. Dupuis

  2. Department of Physics and Astronomy, University of Victoria, USA

    P. Chayer

  3. Département de Physique, Université de Montréal, USA

    G. Fontaine, M. Fontaine, R. Lamontagne & F. Wesemael

  4. Dr. Remeis-Sternwarte, Astronomisches Institut der Universität Erlangen-Nürnberg, Germany

    U. Heber & R. Napiwotzki

  5. Institut für Theoretische Physik und Astrophysik der Universität Kiel, Germany

    S. Moehler

Authors
  1. P. Chayer
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  2. G. Fontaine
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  3. M. Fontaine
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  4. R. Lamontagne
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  5. F. Wesemael
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  6. J. Dupuis
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  7. U. Heber
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  8. R. Napiwotzki
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  9. S. Moehler
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Chayer, P., Fontaine, G., Fontaine, M. et al. FUSE Observations of EC14026 Stars. Astrophys Space Sci 291, 359–366 (2004). https://doi.org/10.1023/B:ASTR.0000044344.92680.b8

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  • DOI: https://doi.org/10.1023/B:ASTR.0000044344.92680.b8

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