Four New Delta Scuti Pulsators from a Variability Survey of 131 Stars [PDF]
Publications of the Astronomical Society of the Pacific, 2002 In a photometric variability survey of 131 stars with B < 14 mag, we have found four new Delta Scuti stars. We were sensitive to oscillation amplitudes as low as a few mmag.
Alexei V. Filippenko +17 more
core +3 more sources
Fourier decomposition and frequency analysis of the pulsating stars with P<1 d in the OGLE database. I. Monoperiodic Delta Scuti, RRc and RRab variables. Separation criteria and particularities [PDF]
Astronomy & Astrophysics, 2001 The OGLE database is revisited to investigate in more detail the properties of the Fourier parameters. Methodological improvements led us to identify a clear separation among High-Amplitude Delta Scuti (HADS), RRc and RRab stars. The bimodal distribution
Antonello +28 more
core +4 more sources
Variability Analysis of δ Scuti Candidate Stars [PDF]
Publications of the Astronomical Society of the Pacific, 2018 The Hipparcos catalog contains stars suspected to be {\delta} Scuti variables for which extensive ground-based observations and characterization of variability are necessary. Our aim was to characterize variability of 13 candidates to {\delta} Scuti type stars.
Erika Pakštienė +7 more
openaire +2 more sources
Incidence of High-Amplitude δ Scuti-Type Variable Stars [PDF]
Publications of the Astronomical Society of Japan, 2008 Abstract An order-of-magnitude estimate for the incidence of high-amplitude $\delta$ Scuti-type variable stars (HADS) in the $\delta$Scuti area of the H-R diagram was calculated. Using a model for the stellar distribution in the Milky Way, we calculated the number of stars that are expected to fall in the $\delta$Scuti area of the H-R ...
Lee, Yong-Hwa +4 more
openaire +2 more sources
Amplitude variability or close frequencies in pulsating stars -- the Scuti star FG Vir [PDF]
Monthly Notices of the Royal Astronomical Society, 2006 10 pages, 6 figures.
Breger, Michel, Pamiatnych, Aleksiej
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Highlights of Discoveries for δ Scuti Variable Stars From the Kepler Era [PDF]
Frontiers in Astronomy and Space Sciences, 2021 The NASAKeplerand follow-on K2 mission (2009–2018) left a legacy of data and discoveries, finding thousands of exoplanets, and also obtaining high-precision long time-series data for hundreds of thousands of stars, including many types of pulsating variables.
openaire +3 more sources
V 1162 Ori: A multiperiodic delta Scuti star with variable period and amplitude [PDF]
Astronomy & Astrophysics, 2001 We present the results of multisite observations of the delta Scuti star V1162 Ori. The observations were done in the period October 1999 - May 2000, when 18 telescopes at 15 observatories were used to collect 253 light extrema during a total of 290 hours of time-series observations.
Arentoft, T +24 more
openaire +4 more sources
Amplitude Variability of Delta Scuti Stars: 4 CVn [PDF]
International Astronomical Union Colloquium, 2000 AbstractThe amplitude variability of δ Scuti stars is demonstrated by the behavior of the evolved δ Scuti star 4 CVn. The data on 4 CVn covering over 30 yr shows the amplitudes of almost all modes to be extremely variable with a time scales of ten years or longer.
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The ASAS-SN catalogue of variable stars VI: an all-sky sample of δ Scuti stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT We characterize an all-sky catalogue of ∼8400 δ Scuti variables in ASAS-SN, which includes ∼3300 new discoveries. Using distances from Gaia DR2, we derive period–luminosity relationships for both the fundamental mode and overtone pulsators in the WJK, V, Gaia DR2 G, J, H, Ks, and W1 bands.
T Jayasinghe +12 more
openaire +2 more sources
Rotation of stars in NGC 6134 [PDF]
Astronomy & Astrophysics, 2002 12 pages, 7 ...
Rasmussen, M.B. +4 more
openaire +4 more sources