A purely geometric distance to the binary star Atlas, a member of the Pleiades

@article{Zwahlen2004APG,
  title={A purely geometric distance to the binary star Atlas, a member of the Pleiades},
  author={N. Zwahlen and Pierre L. North and Yves Debernardi and Laurent Eyer and Franck Galland and Martin A. T. Groenewegen and C. Hummel Laboratoire d'Astrophysique de l'EPFL and Obs. Geneve and Observatoire de Grenoble and Leuven and European Southern Observatory},
  journal={Astronomy and Astrophysics},
  year={2004},
  volume={425}
}
We present radial velocity and new interferometric measurements of the double star Atlas, which permit, with the addition of published interferometric data, to precisely derive the orbital parameters of the binary system and the masses of the components. The derived semi-major axis, compared with its measured angular size, allows to determine a distance to Atlas of 132 ± 4 pc in a purely geometrical way. Under the assumption that the location of Atlas is representative of the average distance… Expand

Figures and Tables from this paper

Eclipsing binaries as standard candles: HD 23642 and the distance to the Pleiades
We present a reanalysis of the light curves of HD 23642, a detached eclipsing binary star in the Pleiades open cluster, with emphasis on a detailed error analysis. We compare the masses and radii ofExpand
The Araucaria Project: High-precision orbital parallax and masses of the eclipsing binary TZ~Fornacis
Context: Independent distance estimates are particularly useful to check the precision of other distance indicators, while accurate and precise masses are necessary to constrain evolution models.Expand
The Pleiades eclipsing binary HD 23642 revisited
Context. HD 23642 is the only known eclipsing binary in the Pleiades, and therefore of importance in determining the distance to this cluster. Aims. To use new photometric and spectroscopic data inExpand
The Araucaria project: High-precision orbital parallax and masses of eclipsing binaries from infrared interferometry
Context. The precise determinations of stellar mass at $\sim$1% provide important constraints on stellar evolution models. Accurate parallax measurements can also serve as independent benchmarks forExpand
Distances, depth structure, and kinematics of the Magellanic Clouds from disentangling spectra of eclipsing binaries and Cepheids
Abstract Spectroscopy and photometry of eclipsing binaries and Cepheids (using the Baade–Wesselink method) yield primary distance markers applicable to the Local Group of galaxies. The technique ofExpand
Stellar twins determine the distance of the Pleiades
Since the release of the Hipparcos catalog in 1997, the distance to the Pleiades open cluster has been heavily debated. The distance obtained from Hipparcos and those by alternative methods differ byExpand
Parallaxes and proper motions for 20 open clusters as based on the new Hipparcos catalogue
Context. A new reduction of the astrometric data as produced by the Hipparcos mission has been published, claiming that the accuracies for nearly all stars brighter than magnitude Hp = 8 areExpand
Interferometry and the Fundamental Properties of Stars
For many decades the determination of accurate fundamental parameters for stars (masses, radii, temperatures, luminosities, etc.) has mostly been the domain of eclipsing binary systems. That hasExpand
Pseudomagnitude Distances: Application to the Pleiades cluster
The concept of pseudomagnitude was recently introduced by Chelli et al. (2016), to estimate apparent stellar diameters using a strictly observational methodology. Pseudomagnitudes are distanceExpand
From Hipparcos to Gaia
Abstract The measurement of the positions, distances, motions and luminosities of stars represents the foundations of modern astronomical knowledge. Launched at the end of the eighties, the ESAExpand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 14 REFERENCES
The distance to the Pleiades from orbital solution of the double-lined eclipsing binary HD 23642
Combining precise B,V photoelectric photometry and radial velocities, we have been able to derive a firm orbital solution and accurate physical parameters for the newly discovered eclipsing binary HDExpand
Computing the Parallax of the Pleiades from the Hipparcos Intermediate Astrometry Data: An Alternative Approach
The inconsistency between the mean parallax of the Pleidaes open cluster from the Hipparcos catalog and that obtained from the stellar evolution theory and photometric measurements is probed byExpand
A distance of 133–137 parsecs to the Pleiades star cluster
TLDR
The orbital parameters of the bright double star Atlas in the Pleiades are reported, using long-baseline optical/infrared interferometry, to derive a firm lower bound of D > 127’pc, with the most likely range being 133 < D < 137 pc. Expand
Navy Prototype Optical Interferometer Observations of the Double Stars Mizar A and Matar
We present a detailed analysis of two spectroscopic binaries based on new observations obtained with the Navy Prototype Optical Interferometer (NPOI). While the data calibration needs refinement,Expand
The Problem of Hipparcos Distances to Open Clusters. I. Constraints from Multicolor Main-Sequence Fitting*
Parallax data from the Hipparcos mission allow the direct distance to open clusters to be compared with the distance inferred from main-sequence (MS) fitting. There are surprising differences betweenExpand
Automated spectroscopic abundances of A and F-type stars using echelle spectrographs - I. Reduction of ELODIE spectra and method of abundance determination
This paper presents an automated method to determine detailed abundances for A and F-type stars. This method is applied on spectra taken with the ELODIE spectrograph. Since the standard reductionExpand
Transits of Venus : new views of the solar system and galaxy : proceedings of the 196th Colloquium of the International Astronomical Union, held in Preston, Lancashire, United Kingdom, 7-11 June 2004
Part I. Transits of Venus: History, Results and Legacy: Part II. The AU and the PC Part III. Transits, the Solar System and Extra-Solar Planets Part IV. The Jeremiah Horrocks Memorial Public LectureExpand
An introduction to the bootstrap
Statistics is the science of learning from experience, especially experience that arrives a little bit at a time. The earliest information science was statistics, originating in about 1650. ThisExpand
Spectral disentangling of close binary st
  • 2003
...
1
2
...