Results 201 to 210 of about 577 (218)

The Intermediate-Period Cepheid Strip Stars

Astronomical Journal, 2002
To explore the population of variable stars that fall between RR Lyrae stars and classical Cepheids, we have obtained extensive photometric observations for 56 stars with periods between 0.6 and 1.0 days.
Edward G Schmidt
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Spectra of Population II Cepheid Variable Stars

1958
The physical properties of the population II cepheids have been studied using the following material: photoelectric observations of Arp, low dispersion spectra of Joy, high dispersion spectra taken by Sanford and Abt, and numerous moderate dispersion spectra obtained by the author. Radial velocity curves for ten cepheids are shown.
openaire   +1 more source

A New Approach to the Determination of the Intrintic Colours of the Cepheid Variable Stars

International Astronomical Union Colloquium, 1979
SummaryIntrinsic colours have been determined for 247 of the 275 variable stars listed in the “Catalogue of the Light and Colour Curves of Cepheids in the UBV System” by N. Nikolov. Algorithms for computing intrinsic colour are derived from 59 standard stars.
Gerald E. Kron, Franklin E. Roach
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Domain Adaptation under Data Misalignment: An Application to Cepheid Variable Star Classification

2014 22nd International Conference on Pattern Recognition, 2014
We address a particular scenario within the area of domain adaptation, where a predictive model obtained from a source domain can be applied directly to a target domain. Both source and target domains share the same input or feature space, but we do not impose any restrictions on the marginal and class posterior distributions (both distributions can ...
Ricardo Vilalta, Kinjal Dhar Gupta, Lucas Macri   +2 more
openaire   +1 more source

Period changes in dwarf cepheid variable stars.

Publications of the Astronomical Society of the Pacific, 1978
J. R. Percy, J. M. Matthews, J. D. Wade
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Finding Cepheid Variable Stars in Northern Dwarf Galaxies of the Local Group

2007
Die vorliegende Arbeit “Suche nach Cepheid-artigen Veränderlichen Sternen in nördlichen Zwerggalaxien der Lokalen Gruppe” faßt die Ergebnisse des VarStarDwarves-Projektes für alle “blauen”, periodisch Variablen Sterne (VS) zusammen. Die Zielsetzung des VarStarDwarves-Projekts, das seit 1999 an der Universitäts-Sternwarte München betrieben wird, läßt ...
openaire   +1 more source

When a period is not a full stop: Light-curve structure reveals fundamental parameters of Cepheid and RR Lyrae stars

Monthly Notices of the Royal Astronomical Society, 2020
Earl P Bellinger, Shashi M Kanbur, Anupam Bhardwaj   +2 more
exaly  

A Search for Evolutionary Changes in the Periods of Five Classical Cepheid Stars: R Cru, T Cru, XZ Car, X Lac and WZ Car

NRIAG Journal of Astronomy and Geophysics, 2020
Mohamed Abdel-Sabour, M R Sanad
exaly  

THE ORBIT OF THE CEPHEID VARIABLE STAR X SAGITTARII

Publications of the Astronomical Society of the Pacific, 1909
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Candidates for non-pulsating stars located in the Cepheid instability strip in the Large Magellanic Cloud based on Strömgren photometry

Monthly Notices of the Royal Astronomical Society, 2019
R Smolec, M Kubiak, Paulina Karczmarek   +2 more
exaly