A catalogue of eclipsing variables
A new catalogue of 6330 eclipsing variable stars is presented. Thecatalogue was developed from the General Catalogue of Variable Stars(GCVS) and its textual remarks by including recently publishedinformation about classification of 843 systems and making correspondingcorrections of GCVS data. The catalogue1 represents thelargest list of eclipsing binaries classified from observations.
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Updated Elements for Southern Eclipsing Binaries
Analysis of ASAS-3 data for 442 southern eclipsing binaries yielded 131stars with incorrect periods listed in the GCVS catalog
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Stars with the Largest Hipparcos Photometric Amplitudes
A list of the 2027 stars that have the largest photometric amplitudes inHipparcos Photometry shows that most variable stars are all Miras. Thepercentage of variable types change as a function of amplitude. Thiscompilation should also be of value to photometrists looking forrelatively unstudied, but large amplitude stars.
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Common chromospheres - roundchroms - as a means for the study of binary systems
An independent method based on the concept of common chromospheres -roundchroms - is proposed for the determination of the radii of the maincomponents of RS CVn-type close binary systems. The essence of themethod is in the coincidence of the radius of the main component of thebinary system with the equipotential zero-velocity surface for somevalues of the Jacobi constant. As an illustration, the method is appliedto a sample of 15 RS CVn-type systems, and as a result the revised radiiof the main components in the systems are determined. The mainparameters, particularly the volumes, electron concentrations and massesof the roundchroms, are obtained as well. Empirical dependences of theelectron concentration in the roundchrom, n_e, and of the 2800 Mg iidoublet luminosity, L(Mg ii), on intercomponent distance a werediscovered, the first in the form n_e~a^-0.85 and the second in the formL(Mg ii)~a^1.66. The formation of a roundchrom in close binary systemsis inevitable, and the roundchrom is as essential a physical formationfor binary systems as are the corona and chromosphere for single stars.
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Improved Astrometry for Variable Stars
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A survey of the radio continuum emission of RS Canum Venaticorum and related active binary systems
Observations of 77 RS CVn and related active binary systems were madewith VLA at a continuum frequency of 4.86 GHz. The results are combinedwith other VLA observations to produce a total number of observedsources of 122. A search for correlations of radio properties withvarious systemic and stellar parameters is performed. Significantcorrelations are found between the normalized radio luminosityL(6)/L(bol) and the normalized soft X-ray luminosity L(x)/L(bol). It issuggested that the close correlation between low-level 6-cm emission andthe hot component of the soft X-ray emission observed by the Einsteinsolid state spectrometer is caused by both emissions being produced bythe same thermal electrons.
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A uvby, beta photometric survey of southern hemisphere
A uvby, beta photometric study of southern hemisphere eclipsing binarystars has been undertaken at Cerro Tololo Inter-American Observatory.The standardized colors and V magnitudes for 288 binaries at quadratureand/or at minimum are presented, along with an indication of theaccuracy of the standardization and photometry. Discussions of theresolving time of the pulse-counting photometers and of the atmosphericextinction at CTIO are included.
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Results of the Bamberg Southern Hemisphere Sky Patrol [erratum: 1969MNSSA..28...79S]
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Identification List of the New Variable Stars Nominated in 1968
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Langfristige Periodenkontrolle fur Bedeckungsveranderliche der Bamberger Liste.
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Elements for Four Bamberg Variables
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Bright Southern BV-Stars
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The Red 0,0 CN Bands in Late Type Giants
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INHABITED SKY
