Results 61 to 70 of about 266 (162)

The OGLE Collection of Variable Stars. Classical Cepheids in the Magellanic System

, 2016
16 pages, 5 ...
Soszynski, I., Udalski, A., Szymanski, M. K., Skowron, D., Pietrzynski, G., Poleski, R., Pietrukowicz, P., Skowron, J., Mroz, P., Kozlowski, S., Wyrzykowski, L., Ulaczyk, K., Pawlak, M.   +12 more
openaire   +2 more sources

The Cepheid Distance Scale: A Novel Method for Obtaining Mean Magnitudes from Single-epoch Observations

The Astronomical Journal
We present a novel technique for mapping single-phase observations of Cepheids in any given band into their time-averaged values, using strong priors on the known interrelations of the multiwavelength widths of Cepheid period–luminosity (PL) relations ...
Barry F. Madore, Wendy L. Freedman, Kayla Owens   +2 more
doaj   +1 more source

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

Type II Cepheids: period-luminosity-metallicity relations for the Population II distance scale

Frontiers in Astronomy and Space Sciences
Type II Cepheids are a class of pulsating variable stars that play a critical role in our understanding of stellar evolution, distance measurement and tracing the structure and kinematics of old stars in nearby galaxies.
Susmita Das, Susmita Das, Susmita Das, Anupam Bhardwaj, Marcella Marconi   +4 more
doaj   +1 more source

Analysis of pulsating variable stars using the visibility graph algorithm. [PDF]

PLoS One, 2021
Muñoz V, Garcés NE.
europepmc   +1 more source

The OGLE Collection of Variable Stars. Type II Cepheids in the Magellanic System

Acta Astronomica, 2018
BEFORE_PUBLICATION
Soszyński, Igor, Udalski, Andrzej, Szymański, Michał, Wyrzykowski, Łukasz, Ulaczyk, Krzysztof, Poleski, Radosław, Pietrukowicz, Paweł, Kozłowski, Szymon, Skowron, Dorota, Skowron, Jan, Mróz, Przemysław, Rybicki, Krzysztof, Iwanek, Patryk   +12 more
openaire   +3 more sources

Toward a Comprehensive Grid of Cepheid Models with MESA. II. Impact of Physical and Numerical Assumptions on Elemental Abundances

The Astrophysical Journal Supplement Series
Modern tools for modeling stellar evolution, such as the Modules for Experiments in Stellar Astrophysics, offer state-of-the-art implementations of stellar theories.
O. Ziółkowska, R. Smolec, A. Thoul, R. Singh Rathour, V. Hocdé   +4 more
doaj   +1 more source

The Period Radius Relation for Cepheid Variable Stars [PDF]

Monthly Notices of the Royal Astronomical Society, 1973
R. Woolley, B. Carter
openaire   +1 more source

Vaginal-perianal or vaginal-perineal compared with vaginal-rectal culture-based screening for Group B Streptococci (GBS) colonization during the third trimester of pregnancy: a systematic review and meta-analysis. [PDF]

BMC Pregnancy Childbirth, 2022
Nadeau HCG, Bisson C, Chen X, Zhao YD, Williams M, Edwards RK.   +5 more
europepmc   +1 more source

Gaia DR3 Open Cluster Cepheids: A Unified Catalog with Calibrated Period–Age and Period–Wesenheit Relations

The Astronomical Journal
Classical Cepheids (CCs) in Galactic open clusters (OCs) provide essential observational constraints for calibrating the period–age relation (PAR) and the period–Wesenheit relation (PWR) of CCs. However, distant and long-period OC Cepheids remain limited,
Shunhong Deng, Zhihong He, Anbing Ren, Qian Cui, Xiaoyue Zhou, Liming Peng, Chenxin Wang, Ziang Chen, Yangping Luo, Kun Wang   +9 more
doaj   +1 more source