IIA Institutional Repository

Browsing by Author "Thévenin, F"

Browsing by Author "Thévenin, F"

Sort by: Order: Results:

  • Chemical composition and evolutionary status of nine UV-bright stars in five globular clusters from VLT/UVES spectra 
    Jasniewicz, G; de Laverny, P; Parthasarathy, M; Lèbre, A; Thévenin, F (EDP Sciences, 2004-08)
    We have derived the chemical composition of nine UV-bright stars belonging to five Galactic globular clusters of various metallicities ([Fe/H] from -1.0 to -2.4 dex). The analyses are based on high resolution spectra ...
  • Chemical composition of HD 179821 (IRAS 19114+0002) 
    Thévenin, F; Parthasarathy, M; Jasniewicz, G (European Southern Observatory, 2000-07)
    A LTE analysis of medium resolution spectra of HD 179821 has been made. Derived atmospheric parameters of HD 179821 are K, and [Fe/H]=-0.5. The position of the star in the H-R diagram, its high radial velocity (Vr=100 ...
  • The evolutionary status of HD 179821 
    Thévenin, F; Jasniewicz, G; Parthasarathy, M (Kluwer Academic Publishers, 2001-08)
    HD 179821 (IRAS 19114+0002) is classified as a moderately metal-poor ([Fe/H] = - 0.5) post-AGB star of Teff = 5660 K and also as a very massive supergiant of Teff = 6750 K. Recent detailed studies of this star are not able ...
  • Late-type giants with infrared excess. I. Lithium abundances 
    Jasniewicz, G; Parthasarathy, M; de Laverny, P; Thévenin, F (European Southern Observatory, 1999-02)
    de la Reza et al. (1997) suggested that all K giants become Li-rich for a short time. During this period the giants are associated with an expanding thin circumstellar shell supposedly triggered by an abrupt internal mixing ...

Search DSpace

Browse

My Account