Results 21 to 30 of about 2,498,592 (293)
RR Lyrae stars in the GCVS observed by the Qatar Exoplanet Survey [PDF]
, 2015 This publication was made possible by NPRP grant # X-019-1-006 from the Qatar National Research Fund (a member of Qatar Foundation). AAF is grateful to DGAPA-UNAM for grant number IN104612.We used the light curve archive of the Qatar Exoplanet Survey to ...
Bramich, Daniel Martyn +7 more
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Multifilter Time-series Observations of Eleven Blue Short-period ATLAS Variable Stars
The Astronomical Journal, 2023 Eleven periodic variable stars were observed photometrically through two to four filters from the set UBVR _C I _C . Phase-folded data for each star cover full cycles of variation.
C. Koen, V. Schaffenroth, A. Kniazev
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Galaxies, 2021 Eclipsing systems are essential objects for understanding the properties of stars and stellar systems. Eclipsing systems with pulsating components are furthermore advantageous because they provide accurate constraints on the component properties, as well
Patricia Lampens
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An Observer's View on the Future of Asteroseismology
Frontiers in Astronomy and Space Sciences, 2019 Scientific research is a continuous process, and the speed of future progress can be estimated by the pace of finding explanations for previous research questions. In this observer's based view of stellar pulsation and asteroseismology, we start with the
Margit Paparó
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Forward Modeling the Orbits of Companions to Pulsating Stars from Their Light Travel Time Variations
, 2020 Mutual gravitation between a pulsating star and an orbital companion leads to a time-dependent variation in path length for starlight traveling to Earth.
Murphy, Simon J. +5 more
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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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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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Pulsating variable stars in the Magellanic Clouds [PDF]
Proceedings of the International Astronomical Union, 2008 AbstractPulsating variable stars can be powerful tools to study the structure, formation and evolution of galaxies. I discuss the role that the Magellanic Clouds' pulsating variables play in our understanding of the whole Magellanic System, in light of results on pulsating variables produced by extensive observing campaigns like the MACHO and OGLE ...
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Pulsating stars in ω Centauri. Near-IR properties and period-luminosity relations
EPJ Web of Conferences, 2017 ω Centauri (NGC 5139) contains many variable stars of different types, including the pulsating type II Cepheids, RR Lyrae and SX Phoenicis stars. We carried out a deep, wide-field, near-infrared (IR) variability survey of ω Cen, using the VISTA telescope.
Navarrete Camila +6 more
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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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