Pulkovo compilation of radial velocities for 35495 stars in a common system.
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uvby - β Photoelectric Photometry of the Open Cluster α Per
Absolute photoelectric photometry of stars in the direction of the OpenCluster α Per has been secured and is presented along with ananalysis reinforced with all the available data in Strömgrenuvby-β photometry compiled from the literature. Cluster membershipis analyzed and the physical characteristics of the stars have beendeduced. The membership determined in this paper is compared with thatof proper motion studies and Hipparcos.
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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.
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Membership of low-mass stars in the open cluster Alpha Persei
The results of a combined astrometric, photometric, and spectroscopicsearch for low-mass members in the intermediate-age open cluster AlphaPersei are presented. Over 130 low-mass new members have been identifiedto M(v) about 12.5, almost doubling the previous number of knownmembers. The new membership information suggests a slight upwardrevision of Alpha Per's age to about 8 x 10 exp 7 yr. Alpha Per isnoticeably spatially elongated in a direction parallel to the Galacticplane, most likely due to tidal deformation. Analysis of thedistribution of relative H-alpha emission strengths among Alpha Permembers confirms the view that the mean H-alpha strength decreases inincreasingly older systems. Allowing for survey incompleteness, onecannot reject the idea that the luminosity function is consistent withthe field luminosity function to M(v) about 9 or 10.
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The catalogue of equivalent line widths in the spectra of A- and F-stars.
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Spectroscopic determination of metallicity in the star-members of young open clusters.
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A photometric survey of the Alpha Persei cluster for Delta Scuti variables
To investigate the incidence of Delta Scuti variables in the AlphaPersei cluster, a program of differential photometry was undertakenwhich included 24 A- and F-type stars (V no more than 9.48) in or nearthe Delta Scuti instability strip. All stars in the sample weredetermined to have a high probability of cluster membership on the basisof multiple criteria, including proper motions, radial velocities, andextensive photometric data. Three variables were detected (BD +48 deg894, BD +48 deg 905, and BD +47 deg 842). These are located in theregion of the instability strip and have periods close to thosepredicted from the period-color-luminosity relation. The relativeincidence of Delta Scuti variables in the cluster is approximately 25%.As in the Pleiades cluster, the main-sequence variables may be slowerrotators than the nonvariables in the instability strip. The exclusionof pulsation among main-sequence Am stars in the cluster is alsoconfirmed.
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The radial velocities., luminosities of 77 stars in the field of the alf Per cluster.
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Studies of Stellar Rotation.IV. a Comparison of Rotational Velocities in the Alpha Persei Cluster and the Pleiades
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1967ApJ...148..129K&db_key=AST
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Photometry of the α Persei Cluster.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1960ApJ...132...68M&db_key=AST
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Eigenbewegungen in der Umgebung von α Persei
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