Results 61 to 70 of about 363 (172)
Evidence for an Overluminosity of the Variable Star RR Lyrae, and a Revised Distance to the LMC [PDF]
The Astrophysical Journal, 2008 4 pages, 4 figures (emulateapj format).
Catelan, M., Cortes, C.
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Pulsation Properties of Blazhko and Non-Blazhko RRab Stars
The Astrophysical Journal Supplement SeriesIn this study, we conduct a comparative analysis of the properties of Blazhko and non-Blazhko RRab stars. We identified 1054 non-Blazhko and 785 Blazhko RRab stars in the photometric data observed by the K2 mission, which, combined with those 37 stars ...
Peng Zong +10 more
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The Astrophysical Journal Letters, 2023 RR Lyrae variables are excellent Population II distance indicators thanks to their well-defined period–luminosity relations (PLRs) at infrared wavelengths.
Anupam Bhardwaj +11 more
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RR Lyrae Variable Stars in the CCD/Transit Instrument Survey
The Astronomical Journal, 1996 Abstract : RR Lyrae variable stars have long been recognized as important tools in probing the mass, chemical distribution and kinematics of the Galaxy from the inner recesses of the nuclear bulge to the outer environs of the distant Galactic halo. This dissertation chronicles an RR Lyrae variable star survey from a thorough description of the initial ...
Charles J. Wetterer +3 more
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The RR Lyrae Luminosity Metallicity Relation Revisited
The Astronomical JournalWe utilize a set of internally consistent absolute ages for a sample of ten Galactic globular clusters to determine the variation of the slope with the zero point of the M _V (RR) ∼ [Fe/H] relation for RR Lyrae variables.
Ata Sarajedini
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The Astronomical JournalWe conduct an asteroseismological analysis on the non-Blazhko ab-type RR Lyrae star EPIC 248846335, employing the Radial Stellar Pulsations module of the Modules for Experiments in Stellar Astrophysics based on the set of stellar parameters.
Peng Zong +11 more
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The Astronomical Journal, 2023 Noting the weakest modulation and relatively high metal abundance of the ab-type RR Lyrae star V838 Cyg, we collected the photometric data of this star from several sky surveys to carry out an in-depth analysis. The O − C diagram shows that the pulsation
L.-J. Li +3 more
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Faint (and bright) variable stars in the satellites of the Milky Way
EPJ Web of Conferences, 2017 I describe two ongoing projects related with variable stars in the satellites of the MilkyWay. In the first project, we are searching for dwarf Cepheid stars (a.k.a δ Scuti and/or SX Phe) in some of the classical dwarf spheroidal galaxies. Our goal is to
Vivas A. Katherina
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The RR Lyrae variable stars in the globular cluster IC 4499
The Astronomical Journal, 1979 Periods and light curves are presented for 75 RR Lyrae variables in the globular cluster IC 4499. Of these, 52 are of the ab type with a mean period of 0.578 +- 0.009 and 23 are c type with a mean period of 0.351 +- 0.004. The cluster belongs to Oosterhoff group I (the short-period group) and has the greatest frequency of RR Lyrae variables of the ...
C. C. Clement +2 more
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Pulsating star research and the Gaia revolution
EPJ Web of Conferences, 2017 In this article we present an overview of the ESA Gaia mission and of the unprecedented impact that Gaia will have on the field of variable star research.
Eyer Laurent +19 more
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