FUSE Observations of EC14026 Stars

P. Chayer; G. Fontaine; M. Fontaine; R. Lamontagne; F. Wesemael; J. Dupuis; U. Heber; R. Napiwotzki; S. Moehler

doi:10.1023/B:ASTR.0000044344.92680.b8

FUSE Observations of EC14026 Stars

P. Chayer, G. Fontaine, M. Fontaine, R. Lamontagne, F. Wesemael, J. Dupuis, U. Heber, R. Napiwotzki, S. Moehler

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18 Citations (Scopus)

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.

Original language	English
Pages (from-to)	359-366
Journal	Astrophysics and Space Science
Volume	291
Issue number	3-4
DOIs	https://doi.org/10.1023/B:ASTR.0000044344.92680.b8
Publication status	Published - 2004

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title = "FUSE Observations of EC14026 Stars",

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.",

author = "P. Chayer and G. Fontaine and M. Fontaine and R. Lamontagne and F. Wesemael and J. Dupuis and U. Heber and R. Napiwotzki and S. Moehler",

note = "“The original publication is available at www.springerlink.com”. Copyright Springer. [Full text of this article is not available in the UHRA]",

year = "2004",

doi = "10.1023/B:ASTR.0000044344.92680.b8",

language = "English",

volume = "291",

pages = "359--366",

journal = "Astrophysics and Space Science",

issn = "0004-640X",

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TY - JOUR

T1 - FUSE Observations of EC14026 Stars

AU - Chayer, P.

AU - Fontaine, G.

AU - Fontaine, M.

AU - Lamontagne, R.

AU - Wesemael, F.

AU - Dupuis, J.

AU - Heber, U.

AU - Napiwotzki, R.

AU - Moehler, S.

N1 - “The original publication is available at www.springerlink.com”. Copyright Springer. [Full text of this article is not available in the UHRA]

PY - 2004

Y1 - 2004

N2 - 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.

AB - 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.

U2 - 10.1023/B:ASTR.0000044344.92680.b8

DO - 10.1023/B:ASTR.0000044344.92680.b8

M3 - Article

SN - 0004-640X

VL - 291

SP - 359

EP - 366

JO - Astrophysics and Space Science

JF - Astrophysics and Space Science

IS - 3-4

ER -

FUSE Observations of EC14026 Stars

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