Results 91 to 100 of about 363 (172)

Stellar Pulsation and Evolution: A Combined Theoretical Renewal and Updated Models (SPECTRUM). I. Updating Radiative Opacities for Pulsation Models of Classical Cepheid and RR-Lyrae

The Astrophysical Journal
Pulsating stars are universally recognized as precise distance indicators and tracers of stellar populations. Their variability, combined with well-defined relationships between pulsation properties and intrinsic evolutionary parameters such as ...
Giulia De Somma, Marcella Marconi, Santi Cassisi, Roberto Molinaro   +3 more
doaj   +1 more source

Caught in the Act: Observations of the Double-mode RR Lyrae V338 Boo during the Disappearance of a Pulsation Mode

The Astrophysical Journal
New results on the behavior of the double-mode RR Lyrae V338 Boo are presented. The Transiting Exoplanet Survey Satellite (TESS) observed this star again in 2022, and an observing campaign of the American Association of Variable Star Observers (AAVSO ...
Kenneth Carrell, Ronald Wilhelm, Andrew Tom, Horace Smith, Adam Popowicz, Gary Hug, Stephen M. Brincat, Fabio Salvaggio, Keith Nakonechny, Darrell Lee, Teófilo Arranz Heras, Tony Vale, Davide Mortari, André Steenkamp, Ralph Rogge, Jacek Checinski   +15 more
doaj   +1 more source

San Pedro meeting on Wide Field Variability Surveys: Some concluding comments

EPJ Web of Conferences, 2017
This is a written version of the closing talk at the 22nd Los Alamos Stellar pulsation conference on wide field variability surveys. It comments on some of the issues which arise from the meeting.
Feast Michael W.
doaj   +1 more source

The ancient stellar population of M 32: RR Lyrae variable stars confirmed [PDF]

, 2011
G. Fiorentino, R. Contreras Ramos, Eline Tolstoy, G. Clementini, Abhijit Saha   +4 more
openalex   +1 more source

Classification of Periodic Variable Stars from TESS

The Astrophysical Journal Supplement Series
The number of known periodic variable stars has increased rapidly in recent years. As an all-sky transit survey, the Transiting Exoplanet Survey Satellite (TESS) plays an important role in detecting low-amplitude variable stars.
Xinyi Gao, Xiaodian Chen, Shu Wang, Jifeng Liu   +3 more
doaj   +1 more source

Light and Color Curves of Six Field RR Lyrae Variable Stars [PDF]

, 2002
Alicia S. Day, Andrew C. Layden, D. W. Hoard, Gabriel Brammer, Kathy L. Cooksey, Jorge Cuadra, Shadrian Holmes, Erika Labbé, Rodolfo Montez   +8 more
openalex   +1 more source

Candidate RR Lyrae Associated with the Ultrafaint Dwarf Galaxy Aquarius III

The Astronomical Journal
We report the search of RR Lyrae in the vicinity of a newly discovered ultrafaint dwarf galaxy, Aquarius III. Based on the known RR Lyrae catalogs and gri -band light curves retrieved from public archives, we identified a RR Lyrae with distance ...
Chow-Choong Ngeow, Anupam Bhardwaj
doaj   +1 more source

Constraints on the Distance Moduli, Helium and Metal Abundances, and Ages of Globular Clusters from their RR Lyrae and Non-variable Horizontal-branch Stars. III. M55 and NGC 6362 [PDF]

, 2018
Don A. VandenBerg, Pavel A. Denissenkov
openalex   +1 more source

Three-dimensional Reddening Maps of the Magellanic Clouds Constructed by RR Lyrae Stars

The Astronomical Journal
We present the first three-dimensional reddening maps of the Large and Small Magellanic Clouds (LMC and SMC) constructed using fundamental-mode RR Lyrae stars (RRab) from the Optical Gravitational Lensing Experiment (OGLE) survey.
Shun-Xuan He, Yang Huang
doaj   +1 more source

Period Changes of Mira Variables, RR Lyrae Stars, and Type II Cepheids [PDF]

, 2013
Smith, Horace A.
openalex   +1 more source