Spectroscopic orbit determination of two metal-weak dwarf stars: HD64491 and HD141851

Grigor Boykov Nikolov; E. Atanasova; Ilian Kh. Iliev; Ernst Paunzen; Ina S. Barzova

Spectroscopic orbit determination of two metal-weak dwarf stars: HD64491 and HD141851

Grigor Boykov Nikolov, E. Atanasova, Ilian Kh. Iliev, Ernst Paunzen, Ina S. Barzova

Institut für Astrophysik

Veröffentlichungen: Beitrag in Fachzeitschrift › Meeting Abstract/Conference Paper

Abstract

Based on high-resolution CCD spectra, radial velocity curves of HD64491 and HD141851 have been studied. Both stars are SB1 spectroscopic binaries with metal-weak characteristics. The PHOEBE code was used to derive the spectroscopic orbit solutions. The following parameters have been calculated for HD64491: Porb = 187.8 days, e = 0.5, a sin i = 0.39AU, q = m2/m1 &lid; 0.65. For the other star HD141851 we have obtained: Porb = 1073 days, e = 0.7, a sin i = 1.15AU, and q = m2/m1 &lid; 0.5.

Originalsprache	Englisch
Seiten (von - bis)	433-434
Seitenumfang	2
Fachzeitschrift	Contributions of the Astronomical Observatory Skalnaté Pleso
Publikationsstatus	Veröffentlicht - 2008

ÖFOS 2012

1030 Physik, Astronomie

Zugriff auf Dokument

http://www.ta3.sk/caosp/Eedition/FullTexts/vol38no2/pp433-434.pdf

Zitationsweisen

@article{dda45e0408ab465bafd251e497825e33,

title = "Spectroscopic orbit determination of two metal-weak dwarf stars: HD64491 and HD141851",

abstract = "Based on high-resolution CCD spectra, radial velocity curves of HD64491 and HD141851 have been studied. Both stars are SB1 spectroscopic binaries with metal-weak characteristics. The PHOEBE code was used to derive the spectroscopic orbit solutions. The following parameters have been calculated for HD64491: Porb = 187.8 days, e = 0.5, a sin i = 0.39AU, q = m2/m1 &lid; 0.65. For the other star HD141851 we have obtained: Porb = 1073 days, e = 0.7, a sin i = 1.15AU, and q = m2/m1 &lid; 0.5.",

author = "Nikolov, {Grigor Boykov} and E. Atanasova and Iliev, {Ilian Kh.} and Ernst Paunzen and Barzova, {Ina S.}",

year = "2008",

language = "English",

pages = "433--434",

journal = "Contributions of the Astronomical Observatory Skalnat{\'e} Pleso",

issn = "1335-1842",

publisher = "Astronomicky Ustav SAV",

}

TY - JOUR

T1 - Spectroscopic orbit determination of two metal-weak dwarf stars: HD64491 and HD141851

AU - Nikolov, Grigor Boykov

AU - Atanasova, E.

AU - Iliev, Ilian Kh.

AU - Paunzen, Ernst

AU - Barzova, Ina S.

PY - 2008

Y1 - 2008

N2 - Based on high-resolution CCD spectra, radial velocity curves of HD64491 and HD141851 have been studied. Both stars are SB1 spectroscopic binaries with metal-weak characteristics. The PHOEBE code was used to derive the spectroscopic orbit solutions. The following parameters have been calculated for HD64491: Porb = 187.8 days, e = 0.5, a sin i = 0.39AU, q = m2/m1 &lid; 0.65. For the other star HD141851 we have obtained: Porb = 1073 days, e = 0.7, a sin i = 1.15AU, and q = m2/m1 &lid; 0.5.

AB - Based on high-resolution CCD spectra, radial velocity curves of HD64491 and HD141851 have been studied. Both stars are SB1 spectroscopic binaries with metal-weak characteristics. The PHOEBE code was used to derive the spectroscopic orbit solutions. The following parameters have been calculated for HD64491: Porb = 187.8 days, e = 0.5, a sin i = 0.39AU, q = m2/m1 &lid; 0.65. For the other star HD141851 we have obtained: Porb = 1073 days, e = 0.7, a sin i = 1.15AU, and q = m2/m1 &lid; 0.5.

M3 - Meeting abstract/Conference paper

SN - 1335-1842

SP - 433

EP - 434

JO - Contributions of the Astronomical Observatory Skalnaté Pleso

JF - Contributions of the Astronomical Observatory Skalnaté Pleso

ER -