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Results 1 - 10
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1,292
A double-lined spectroscopic orbit for the young star HD 34700
, 2003
"... We report high-resolution spectroscopic observations of the young star HD 34700, which confirm it to be a double-lined spectroscopic binary. We derive an accurate orbital solution with a period of 23.4877 ± 0.0013 days and an eccentricity of e = 0.2501 ± 0.0068. The stars are found to be of similar ..."
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We report high-resolution spectroscopic observations of the young star HD 34700, which confirm it to be a double-lined spectroscopic binary. We derive an accurate orbital solution with a period of 23.4877 ± 0.0013 days and an eccentricity of e = 0.2501 ± 0.0068. The stars are found to be of similar
Chromospheric activity of the double-lined spectroscopic
, 1999
"... We present simultaneous spectroscopic observations taken during four observing runs (1996 to 1999) of Hα, Hβ, Hǫ, Ca ii H & K, and Ca ii IRT lines of the chromospherically active binary BF Lyn. Both components have strong emission in the Hǫ, Ca ii H & K and Ca ii IRT lines and a strong filli ..."
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We present simultaneous spectroscopic observations taken during four observing runs (1996 to 1999) of Hα, Hβ, Hǫ, Ca ii H & K, and Ca ii IRT lines of the chromospherically active binary BF Lyn. Both components have strong emission in the Hǫ, Ca ii H & K and Ca ii IRT lines and a strong
A DOUBLE-LINED DWARF BINARY
, 2005
"... New spectroscopic and photometric observations of HD 144110 have been used to obtain an improved orbital element solution and determine some basic properties of the system. This chromospherically active, double-lined spectroscopic binary has an orbital period of 1.6714012 days and a circular orbit. ..."
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New spectroscopic and photometric observations of HD 144110 have been used to obtain an improved orbital element solution and determine some basic properties of the system. This chromospherically active, double-lined spectroscopic binary has an orbital period of 1.6714012 days and a circular orbit
The Astrophysical Journal Letters, 742:L1 (6pp), 2011 November 20 doi:10.1088/2041-8205/742/1/L1 C © 2011. The American Astronomical Society. All rights reserved. Printed in the U.S.A. FIRST VISUAL ORBIT FOR THE PROTOTYPICAL COLLIDING-WIND BINARY WR 140
"... Wolf–Rayet (WR) stars represent one of the final stages of massive stellar evolution. Relatively little is known about this short-lived phase and we currently lack reliable mass, distance, and binarity determinations for a representative sample. Here we report the first visual orbit for WR 140 ( = H ..."
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to 2009, covering most of the highly eccentric, 7.9 year orbit. Combining our results with the recently improved double-line spectroscopic orbit of Fahed et al., we find the WR 140 system is located at a distance
The Spectroscopic Orbits of Three Double-lined Eclipsing Binaries: I. BG Ind,
, 905
"... We present the spectroscopic orbit solutions of three double-lines eclipsing binaries, BG Ind, IM Mon and RS Sgr. The first precise radial velocities (RVs) of the components were determined using high resolution echelle spectra obtained at Mt. John University Observatory in New Zealand. The RVs of t ..."
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We present the spectroscopic orbit solutions of three double-lines eclipsing binaries, BG Ind, IM Mon and RS Sgr. The first precise radial velocities (RVs) of the components were determined using high resolution echelle spectra obtained at Mt. John University Observatory in New Zealand. The RVs
1 Nearby Hipparcos Eclipsing Binaries for Color – Surface Brightness Calibration
, 1999
"... This paper contains the list of Hipparcos eclipsing binaries that fulfill the following conditions: the star is classified in the Hipparcos Catalogue as EA-type eclipsing binary and its parallax is either larger than 5 mas or it is five times larger than its mean error. An eclipsing binary with know ..."
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with known distance and with photometric and double-line spectroscopic orbits determined can be used in the process of calibrating the relation between the stellar surface brightness and the color that is crucial for the method of the distance determination by means of eclipsing binaries. This list is being
FIRST VISUAL ORBIT FOR THE PROTOTYPICAL COLLIDING-WIND BINARY WR 140
- THE ASTROPHYSICAL JOURNAL LETTERS, 742:L1 (6PP), 2011
, 2011
"... Wolf–Rayet (WR) stars represent one of the final stages of massive stellar evolution. Relatively little is known about this short-lived phase and we currently lack reliable mass, distance, and binarity determinations for a representative sample. Here we report the first visual orbit for WR 140 ( = H ..."
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to 2009, covering most of the highly eccentric, 7.9 year orbit. Combining our results with the recently improved double-line spectroscopic orbit of Fahed et al., we find the WR 140 system is located at a distance
The orbit of the double-lined Wolf-Rayet Binary HDE 318016 ( = WR 98)
, 2002
"... We present the discovery of OB type absorption lines superimposed to the emission line spectrum and the first double-lined orbital elements for the massive Wolf-Rayet binary HDE 318016 (=WR 98), a spectroscopic binary in a circular orbit with a period of 47.825 days. The semiamplitudes of the orbita ..."
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We present the discovery of OB type absorption lines superimposed to the emission line spectrum and the first double-lined orbital elements for the massive Wolf-Rayet binary HDE 318016 (=WR 98), a spectroscopic binary in a circular orbit with a period of 47.825 days. The semiamplitudes
NEW PRECISION ORBITS OF BRIGHT DOUBLE-LINED SPECTROSCOPIC BINARIES. V. THE AM STARS HD 434 AND 41 SEXTANTIS
"... We have detected the secondary component in two previously known spectroscopic binaries, HD 434 and 41 Sex, and for the first time determined double-lined orbits for them. Despite the relatively long period of 34.26 days and a moderate eccentricity of 0.32, combined with the components ’ rotationall ..."
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We have detected the secondary component in two previously known spectroscopic binaries, HD 434 and 41 Sex, and for the first time determined double-lined orbits for them. Despite the relatively long period of 34.26 days and a moderate eccentricity of 0.32, combined with the components
Results 1 - 10
of
1,292
