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Astrophysics

, Volume 56, Issue 4, pp 461–471 | Cite as

Analysis of the Chemical Composition of the Atmospheres of Stars with Debris Disks and Planetary Systems

  • M. RojasEmail author
  • N. A. Drake
  • C. Chavero
  • C. B. Pereira
  • A. F. Kholtygin
  • D. I. Solovyov
Article
  • 106 Downloads

Spectroscopic studies of seven low mass stars in spectral classes F, G, and K are presented. Four of these (HD 1581, HD 10700, HD 17925, and HD 22484) have debris disks and for two of them (HD 22049 and HD 222582(A + B)) planets are observed. Neither a debris disk nor planets have been observed for one the program stars (HD 20766). High resolution spectral observations of the program stars were made at the 2.2-m telescope of the European Southern Observatory (ESO) during 2008 with the FEROS spectrograph (R = 48000, spectral range 3800-9200 Å). The fundamental parameters of the stars are determined, including effective temperature, acceleration of gravity at the stars’ surface, microturbulence velocity, metallicity, and the abundances of volatile and refractory elements in their atmospheres. The positions of all these stars are indicated on a Hertzsprung-Russell diagram.

Keywords

intermediate and low mass stars stars of solar type stars with planets stars with debris disks— chemical abundances 

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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • M. Rojas
    • 1
    Email author
  • N. A. Drake
    • 1
    • 2
  • C. Chavero
    • 3
  • C. B. Pereira
    • 3
  • A. F. Kholtygin
    • 1
  • D. I. Solovyov
    • 4
  1. 1.Mathematics and Mechanics Faculty and V. V. Sobolev Institute of AstronomySt. Petersburg State UniversitySt. PetersburgRussia
  2. 2.National Astronomical Observatory of BrazilRio de JaneiroBrazil
  3. 3.Cordoba Astronomical ObservatoryCordobaArgentina
  4. 4.St. Petersburg Branch of the Special Astrophysical Observatory of the Russian Academy of SciencesSt. PetersburgRussia

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