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J/A+A/595/A59 Observational properties of Hipparcos stars (Maedler+, 2016)
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Beginning of ReadMe :J/A+A/595/A59 Observational properties of Hipparcos stars (Maedler+, 2016)
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Stellar twins measure the distance of the Pleiades.
Maedler T., Jofre P., Gilmore G., C Worley C., Soubiran C.,
Blanco-Cuaresma S., Hawkins K., Casey A.R.
<Astron. Astrophys. 595, A59 (2016)>
=2016A&A...595A..59M (SIMBAD/NED BibCode)
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ADC_Keywords: Stars, nearby ; Parallaxes, trigonometric ; Photometry, infrared
Keywords: stars: distances - stars: solar-type - parallaxes
Abstract:
Since the release of the Hipparcos catalogue in 1997, the distance to
the Pleiades open cluster has been heavily debated. The distance
obtained from Hipparcos and those by alternative methods differ by 10
to 15%. As accurate stellar distances are key to understanding stellar
structure and evolution, this dilemma puts the validity of some
stellar evolution models into question. Using our model-independent
method to determine parallaxes based on twin stars, we report
individual parallaxes of 15 FGK type stars in the Pleiades in
anticipation of the astrometric mission Gaia. These parallaxes give a
mean cluster parallax of 7.42+/-0.09mas,which corresponds to a mean
cluster distance of 134.8+/-1.7pc. This value agrees with the
current results obtained from stellar evolution models.
Description:
Basic observational properties (coordinates, parallax, photometry, S/N,
program ID) of Hipparcos stars used in the determination of the twin
distance of the Pleiades stars.