Results 31 to 40 of about 12,020 (316)
Magnetic and pulsational variability of Przybylski’s star (HD 101065) [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 11 pages, 4 tables, 7 figures, accepted for publication in ...
Hubrig, S. +6 more
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The pulsating variable star population in DDO210 [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 We have probed the pulsating variable star content of the isolated Local Group dwarf galaxy, DDO210 (Aquarius), using archival Advanced Camera for Surveys/$Hubble$ $Space$ $Telescope$ imaging in the F475W and F814W passbands. We find a total of 32 RR Lyrae stars (24 ab-type, 8 c-type) and 75 Cepheid variables. The mean periods of the ab-type and c-type
Ordoñez, Antonio J., Sarajedini, Ata
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Period Changes and Evolution in Pulsating Variable Stars [PDF]
, 2016 We review ways in which observations of the changing periods of pulsating variable stars can be used to detect and directly measure their evolution. We briefly describe the two main techniques of analysis -- (O-C) analysis and wavelet analysis -- and results for pulsating variable star types which are reasonably periodic: type I and II Cepheids, RR ...
Hilding R. Neilson +2 more
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A statistical study of pulsating stars. Third paper The variable stars in Messier 5
Communications, Faculty Of Science, University of Ankara Series A1Mathematics and Statistics, 1956 Bu yazıda küresel yıldız kümesi Messier 5 deki değişen yıldızlar tetk ik edilm iştir, 'K(I); A(2); A(3) ve A(4) ün nüm erik değerleri tablo halin de g österilm iştir.Şekilde A (2) değerleri m ütekabil log P değerlerine göre izdüşürülmüş* tü r.
E. A. Kreiken
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Chaotic Pulsations in Variable Stars with Harmonic Mode Coupling [PDF]
, 1991 Some variable stars show multi-periodic behaviour with, among others, peaks in their power spectra at harmonically spaced frequencies with ratios 1:2:4. Such modes are nonlinearly coupled by two second-harmonic interactions and their amplitude equations are shown by a Painlevé analysis to be nonintegrable in a hamiltonian sense.
Verheest, Frank, Hereman, Willy
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Pulsating Variable Stars in Local Group Dwarf Galaxies [PDF]
International Astronomical Union Colloquium, 2000 AbstractPulsating variables stars have had a long and prominent history in helping to map out the local Universe. Current observational techniques now make it possible to identify examples of all non-degenerate radial pulsating variables throughout much of the Local Group.
Mario Mateo
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Uncorrelated Amplitude and Frequency Variations of the Harmonics in SX Phoenicis Star XX Cygni
The Astronomical Journal, 2023 Harmonics are quite common in pulsating stars. They are always considered to mimic the behaviors of their independent parent pulsation modes, and are not taken for key information in asteroseismology.
Jia-Shu Niu, Yue Liu, Hui-Fang Xue
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HISTOGRAMS OF PERIODS DISTRIBUTION AND MODE IDENTIFICATIONS OF RRc LYR STARS
Odessa Astronomical Publications, 2017 On the base of GCVS (General Catalogue of Variable Stars) sampling (381 stars with the known periods) has been carried out the analysis of periods of RRc Lyr stars.
V. P. Bezdenezhnyi
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Equidistant frequency triplets in pulsating stars: The Combination Mode Hypothesis [PDF]
, 2006 Multiplet structures are a common feature in pulsating stars, and can be the consequence of rotational splitting, mode interaction or sinusoidal amplitude variations.
Breger, M., Kolenberg, K.
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Pulsation among TESS A and B stars and the Maia variables [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT Classification of over 50 000 TESS stars in sectors 1–18 has resulted in the detection of 766 pulsating main-sequence B stars as well as over 5000 δ Scuti, 2300 γ Doradus, and 114 roAp candidates. Whereas it has been assumed that high-frequency pulsations among B-type main-sequence stars are confined to the early B-type β Cephei
L A Balona, D Ozuyar
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