Results 111 to 120 of about 224 (157)

A New Catalog of 100,000 Variable TESS A-F Stars Reveals a Correlation between δ Scuti Pulsator Fraction and Stellar Rotation

open access: yesThe Astrophysical Journal
δ Scuti variables are found at the intersection of the classical instability strip and the main sequence on the Hertzsprung–Russell diagram. With space-based photometry providing millions of light curves of A-F type stars, we can now probe the occurrence
Keyan Gootkin   +5 more
doaj   +1 more source

Discovery of {delta} Scuti type oscillations in two Algol-type binaries: DY Aqr and BG Peg [PDF]

open access: yes, 2009
[No abstract ...
Soydugan, E.   +6 more
core  

A Note on the Variation of Delta Scuti. [PDF]

open access: yesProc Natl Acad Sci U S A, 1940
Sterne TE.
europepmc   +1 more source

Establishing Baselines for Six Short-period δ Scuti Variables

open access: yesThe Astronomical Journal
As part of our variable star follow-up program, we have examined a number of stars from the Asteroid Terrestrial-impact Last Alert System (ATLAS) survey. Using a combination of our own data, ATLAS data, and other archival data, we confirmed the published
Christiana Z. Suggs   +2 more
doaj   +1 more source

Short-period Variables in TESS Full-frame Image Light Curves Identified via Convolutional Neural Networks

open access: yesThe Astronomical Journal
The Transiting Exoplanet Survey Satellite (TESS) mission measured light from stars in ∼85% of the sky throughout its 2 yr primary mission, resulting in millions of TESS 30-minute-cadence light curves to analyze in the search for transiting exoplanets. To
Greg Olmschenk   +11 more
doaj   +1 more source

The photometry of three variable stars with Short Period: CY Aqr, GP And, and BP Peg [PDF]

open access: yes, 2011
[[abstract]]In this work, the observations present new times of maximum light with three variable stars in this investigation include GP And, BP Peg, and CY Aqr. The analysis of the light curve for each of the variables were showed small period changes.
李奇欣
core  

A Search of Periodic Variable Stars in the LMC by JWST Photometry

open access: yesThe Astrophysical Journal Supplement Series
Based on high-resolution near-infrared photometric data from the James Webb Space Telescope (JWST) targeting the Large Magellanic Cloud, this study attempts to evaluate the feasibility and sensitivity limits of variable star detection in crowded stellar ...
Jiyu Wang   +5 more
doaj   +1 more source

Application of the HF precision-velocity technique to the study of [delta] Scuti variables [PDF]

open access: yes, 1985
In conventional radial-velocity techniques, wavelength calibration in stellar spectra is limited by collimation and guiding errors. These errors can be largely eliminated by imposing absorption lines of known wavelengths on the spectra. The most suitable
Yang, Stephenson
core  

New Variables Stars Discovered by Data Minig Images Taken during Recent Asteroid Photometric Observations. II. Results from July 2015 through December 2016 [PDF]

open access: yes, 2017
This paper follows the previous publication of new variables discovered at Astronomical Observatory, DSFTA, University of Siena, while observing asteroids in order to determine their rotational periods.
Alessandro Marchini   +16 more
core  

Le magnétisme dans les étoiles delta Scuti [PDF]

open access: yes
Δ Scuti (δ Sct) variables are stars exhibiting variations in their luminosity from low radial order pressure modes and mixed modes, and these pulsations typically last anywhere from a few minutes to several hours.
Thomson-Paressant, Keegan
core   +2 more sources

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