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Local stellar kinematics from Hipparcos data
Published 1997“…(shortened) From a kinematically unbiased subsample of the Hipparcos catalogue we have redetermined as a function of colour the kinematics of main-sequence stars. …”
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Corrections to the Hipparcos proper motions in declination for 807 stars
Published 2008-01-01“…We used the data on latitude variations obtained from observations with 10 classical photographic zenith tubes (PZT) in order to improve the Hipparcos proper motions in declinations µδ for 807 stars. …”
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Corrections to the Hipparcos Proper Motions in Declination for 807 Stars
Published 2008-12-01“…Though the accuracy of the star coordinates in the Hipparcos Catalogue is by two orders of magnitude better than that of the star coordinates from the PZT observations, the large number of observations performed a much longer time interval makes it possible to correct the Hipparcos proper motions and to improve their accuracy with respect to the accuracy given in the Hipparcos Catalogue. …”
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The properties of main-sequence stars from Hipparcos data
Published 1997“…We received a sample of 6840 Hipparcos stars south of declination -26 degrees that (i) have MK spectral types in the Michigan catalogues and (ii) had spectroscopic parallaxes that placed them within 80 pc of the Sun. …”
Conference item -
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Photoelectric Vilnius photometry of Hipparcos turn-off region stars
Published 1999-12-01Get full text
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Summary of the RAS Discussion Meeting on HIPPARCOS and the H-R Diagram
Published 1997Journal article -
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Astrometric star catalogues as combination of Hipparcos/Tycho catalogues with ground-based observations
Published 2004-01-01“…The successful ESA mission Hipparcos provided very precise parallaxes positions and proper motions of many stars in optical wavelength. …”
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Modeling and Calibration of Gaia, Hipparcos, and Tycho-2 Astrometric Data for the Detection of Dark Companions
Published 2024-01-01“…To facilitate the efficient and reliable detection of these companions via combined analyses involving the Gaia, Hipparcos, and Tycho-2 catalogs, we introduce an astrometric modeling framework. …”
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Photographic zenith tubes observations to improve HIPPARCOS proper motion in declination of some stars
Published 2005-01-01“…The HIPPARCOS mission period of a few years only is not enough to determine the precise proper motions for some stars, with the standard error of proper motions of about 1 mas/year, but groundbased data covering a few decades with positional errors one or two orders higher than HIPPARCOS ones are nevertheless useful for checking or improving some HIPPARCOS proper motions (mostly of double and multiple stars). …”
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The luminosity function of main-sequence stars within 80 parsecs from Hipparcos data
Published 1997“…The basic data discussed here consist of parallaxes and apparent magnitudes of more than 6000 stars with delta < -26 degrees from the Hipparcos Catalogue which were selected from the Michigan Spectral Catalogue to have estimated spectroscopic distances within 80 parsecs. …”
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Corrected μβ for stars of Hipparcos catalogue from independent latitude observations over many decades
Published 2011-01-01“…On the other hand, with regard that about two decades have elapsed since the Hipparcos ESA mission observations (the epoch of Hipparcos catalogue is 1991.25), the error of apparent places of Hipparcos stars has increased by nearly 20 mas because of proper motion errors. …”
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Corrected mu_delta for Stars of Hipparcos Catalogue from Independent Latitude Observations over Many Decades
Published 2011-06-01“…Because ofthis, nowadays, there are numerous astrometric ground--basedobservations (made over many decades) of some stars included inthe Hipparcos Catalogue (ESA 1997). We used these latitude datafor the inverse investigations -- to improve the proper motions indeclination $mu_{delta}$ of the mentioned Hipparcos stars. …”
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On a New Technique for Discovering Variable Stars
Published 2003-12-01Subjects: Get full text
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Dynamical Architectures of S-type Transiting Planets in Binaries. I. Target Selection Using Hipparcos and Gaia Proper Motion Anomalies
Published 2024-01-01“…We present a volume-limited catalog of up to 300 pc of 66 stars hosting planets and planet candidates from Kepler, K2, and TESS with significant Hipparcos-Gaia proper motion anomalies, which indicates the presence of companions. …”
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بررسی سینماتیکی ستارگان محلی در فاصله 15 پارسکی از خورشید با استفاده از داده های ماهواره HIPPARCOS
Published 2020-11-01“…در کار حاضر تلاش گردیده یک نمونه از حرکت ستارگان در نزدیکی خورشید با استفاده از داده های ماهواره Hipparcos بررسی شود. سه جزء سرعت 493 ستاره با فاصله 15 پارسک از خورشید از سرعت انتقالی، سرعت شعاعی و پارالکس آن ها بدست خواهد آمد. …”
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Corrections of proper motions in declination by using ILS data
Published 2006-01-01“…There are nowadays numerous astrometric ground{based observations of some stars referred to Hipparcos Catalogue, made at many observatories during the last century. …”
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