Results 51 to 60 of about 267 (119)

TOWARD A BETTER UNDERSTANDING OF THE DISTANCE SCALE FROM RR LYRAE VARIABLE STARS: A CASE STUDY FOR THE INNER HALO GLOBULAR CLUSTER NGC 6723

, 2021
Jae Woo Lee, Mercedes López‐Morales, Kyeongsoo Hong, Young Woon Kang, Brian L. Pohl, A. R. Walker   +5 more
openalex   +1 more source

The Next Generation Virgo Cluster Survey. XXXVII. Distant RR Lyrae Stars and the Milky Way Stellar Halo Out to 300 kpc

The Astrophysical Journal
RR Lyrae stars are standard candles with characteristic photometric variability and serve as powerful tracers of Galactic structure, substructure, accretion history, and dark matter content.
Yuting Feng, Puragra Guhathakurta, Eric W. Peng, Stephen D. J. Gwyn, Laura Ferrarese, Patrick Côté, Jean-Charles Cuillandre, Jane Munsell, Manjima Talukdar   +8 more
doaj   +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

The Optical Gravitational Lensing Experiment. The OGLE-III Catalog of Variable Stars. IX. RR Lyrae Stars in the Small Magellanic Cloud [PDF]

, 2010
I. Soszyński, A. Udalski, M. K. Szymański, M. Kubiak, G. Pietrzyński, Ł. Wyrzykowski, K. Ulaczyk, R. Poleski   +7 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

Fourier decomposition and frequency analysis of the pulsating stars with P < 1day in the OGLE database. II. Multiperiodic RR Lyrae variables in the Galactic Bulge [PDF]

, 2002
P. Moskalik, E. Poretti
openalex   +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. I. M3, M15, AND M92 [PDF]

, 2016
Don A. VandenBerg, Pavel A. Denissenkov, M. Catelan   +2 more
openalex   +1 more source

Photometric Metallicity and Distance for the Two RR Lyrae in Segue II and Ursa Major II Dwarf Galaxies Based on Multiband Light Curves

The Astronomical Journal
Multiband light curves of two RR Lyrae variables in Segue II and Ursa Major II ultrafaint dwarf galaxies were collected from near simultaneous observations using the Lulin One-meter Telescope in Vgri bands.
Chow-Choong Ngeow, Anupam Bhardwaj
doaj   +1 more source

Stellar Atmospheric Parameters of ∼11,000 RR Lyrae Stars from LAMOST Spectra

The Astrophysical Journal Supplement Series
Accurate determination of the stellar atmospheric parameters of RR Lyrae stars (RRLs) requires short individual exposures of the spectra to mitigate pulsation effects.
Jiangtao Wang, Jianrong Shi, Jianning Fu, Weikai Zong, Chunqian Li   +4 more
doaj   +1 more source

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

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