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Discovery of 79 δ Scuti Stars in NGC 3532 Suggests a Decrease of Pulsator Occurrence with Age
The Astrophysical JournalMany A–F type stars do not display δ Scuti pulsations, despite being located within the instability strip. Open clusters provide a unique opportunity to study δ Scuti pulsations among coeval populations with uniform chemical composition. Here we use data
Ian Berry +5 more
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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 δ Scuti variables for which extensive ground-based observations and characterization of variability are necessary. Our aim was to characterize variability of 13 candidates to δ Scuti type stars. We obtained 24 215 CCD images and analyzed stellar light curves using the Period04 program. Twelve δ Scuti
Erika Pakštienė +7 more
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Discovery of New ? Scuti Stars [PDF]
, 2022 Pulsating stars are remarkable objects for stellar astrophysics. Their pulsation frequencies allow us to probe the internal structure of stars. One of the most known groups of pulsating stars is delta Scuti variables which could be used to understand the
Kirmizitas, O. +2 more
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TESS Observations of Seven Newly Identified High-amplitude δ Scuti Stars
The Astrophysical Journal, 2023 We report seven newly identified high-amplitude δ Scuti (HADS) stars. Among them, two stars (TIC 30977864 and TIC 387379145) exhibit pure radial pulsation without the excitation of non-radial modes.
Chenglong Lv +5 more
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Revisiting bright δ Scuti stars and their period–luminosity relation with TESS and Gaia DR3 [PDF]
, 2022 We have used NASA’s TESS mission to study catalogued δ Scuti stars. We examined TESS light curves for 434 stars, including many for which few previous observations exist.
Daniel R Hey +7 more
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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
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The Astrophysical Journal, 2023 In this paper, we present an analysis of the pulsating behavior of Kepler target KIC 9845907. Using the data from Kepler, we detected 85 significant frequencies, including the first overtone f _1 = 17.597 day ^−1 as the dominant frequency, the non-radial
Xiao-Ya Sun +3 more
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Rotation of stars in NGC 6134 [PDF]
Astronomy & Astrophysics, 2002 12 pages, 7 ...
Rasmussen, M.B. +4 more
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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
Delta Scuti stars: Theory [PDF]
, 1998 The purpose of asteroseismology is not only to derive the internal structure of individual stars from their observed oscillation frequencies, but also to test and extend one`s understanding of the physics of matter under the extremes of temperature ...
J. A. Guzik, Guzik, J.A.
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