Results 101 to 110 of about 1,219 (138)

Stellar Variability and Distance Indicators in the Near-infrared in Nearby Galaxies. II. Pulsating Stars in the Carina Dwarf Spheroidal

The Astronomical Journal
We present homogeneous, near-infrared ( JHK _s bands) time-series observations of the classical Carina dwarf spheroidal (dSph) galaxy to determine accurate and precise distances using the pulsating stars as standard candles.
Chow-Choong Ngeow, Anupam Bhardwaj, Prashant Nishad, Susmita Das   +3 more
doaj   +1 more source

A study of pulsation & rotation in a sample of A-K type stars in the Kepler field. [PDF]

Astrophys Space Sci, 2018
Chowdhury S, Joshi S, Engelbrecht CA, De Cat P, Joshi YC, Paul KT.   +5 more
europepmc   +1 more source

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

The 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, Marc Hon, Daniel Huber, Daniel R. Hey, Timothy R. Bedding, Simon J. Murphy   +5 more
doaj   +1 more source

Citation-based clustering of publications using CitNetExplorer and VOSviewer. [PDF]

Scientometrics, 2017
van Eck NJ, Waltman L.
europepmc   +1 more source

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

Proc Natl Acad Sci U S A, 1940
Sterne TE.
europepmc   +1 more source

Establishing Baselines for Six Short-period δ Scuti Variables

The 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, Eric G. Hintz, Denise C. Stephens   +2 more
doaj   +1 more source

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

The 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, Richard K. Barry, Stela Ishitani Silva, Jeremy D. Schnittman, Agnieszka M. Cieplak, Brian P. Powell, Ethan Kruse, Thomas Barclay, Siddhant Solanki, Bianca Ortega, John Baker, Mamani Yesenia Helem Salinas   +11 more
doaj   +1 more source

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

The 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, Xiaodian Chen, Jianxing Zhang, Ziming Yan, Shu Wang, Licai Deng   +5 more
doaj   +1 more source

Stability and Dynamics of Three-mode Coupling in δ Scuti Stars

The Astrophysical Journal
Recent observations of δ Scuti stars find evidence of nonlinear three-mode coupling in their oscillation spectra. There are two types of three-mode coupling likely to be important in δ Scuti stars: (i) direct coupling, in which two linearly unstable ...
Mohammed Mourabit, Nevin N. Weinberg
doaj   +1 more source

A New Catalog of 100,000 Variable \emph{TESS} A-F Stars Reveals a Correlation Between $δ$ Scuti Pulsator Fraction and Stellar Rotation

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 rate of δ Scuti pulsations in detail.
Gootkin, Keyan, Hon, Marc, Huber, Daniel, Hey, Daniel R., Bedding, Timothy R., Murphy, Simon J.   +5 more
openaire   +2 more sources