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Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Subtittle: Radial velocities: The Wilson-Evans-Batten catalogue.
We give a common version of the two catalogues of Mean Radial Velocitiesby Wilson (1963) and Evans (1978) to which we have added the catalogueof spectroscopic binary systems (Batten et al. 1989). For each star,when possible, we give: 1) an acronym to enter SIMBAD (Set ofIdentifications Measurements and Bibliography for Astronomical Data) ofthe CDS (Centre de Donnees Astronomiques de Strasbourg). 2) the numberHIC of the HIPPARCOS catalogue (Turon 1992). 3) the CCDM number(Catalogue des Composantes des etoiles Doubles et Multiples) byDommanget & Nys (1994). For the cluster stars, a precise study hasbeen done, on the identificator numbers. Numerous remarks point out theproblems we have had to deal with.
| Radio continuum emission from stars: a catalogue update.
An updated version of my catalogue of radio stars is presented. Somestatistics and availability are discussed.
| A 1.5 GHz radio survey of the Hyades open stellar cluster
Results of a radio survey of the Hyades open stellar cluster carried outwith the VLA at 1.5 GHz are reported. Seventeen fields containing over150 cataloged stars were mapped down to a limiting sensitivity rangingfrom 0.3 mJy at the centers of the fields to 0.9 mJy at a distance of 20arcmin from field centers. Two stars were detected as radio sources: theevolved spectroscopic binary V471 Tau, consisting of a white dwarf and ared dwarf; and the apparently premain-sequence G+K star spectroscopicbinary HD 27130. The failure to detect any single stars as radio sourcesis generally consistent with the age-rotation-activity paradigm,according to which stellar activity is due to magnetic fields producedby dynamo action in rapidly rotating stars and should decrease with ageas a star spins down due to magnetic braking. It is concluded that theHyades M dwarf population is not more active at radio wavelengths thanthe nearby flare star population, or else the number of flare stars inthe Hyades is much less than presently assumed.
| Mesure des vitesses radiales au prisme objectif dans le champ des Hyades: δ Tau. XIV
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| Helligkeiten und Eigenbewegungen in den Hyaden. Mit 6 Textabbildungen
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| Takýmyýldýz: | Boga |
| Sað Açýklýk: | 04h22m43.18s |
| Yükselim: | +17°21'18.9" |
| Görünürdeki Parlaklýk: | 8.871 |
| özdevim Sað Açýklýk: | -15.9 |
| özdevim Yükselim: | -63 |
| B-T magnitude: | 9.492 |
| V-T magnitude: | 8.923 |
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