Results 61 to 70 of about 5,541 (198)

Multicolour CCD photometry of the variable stars in globular cluster M3 [PDF]

, 2006
We present time series data on the variable stars of the galactic globular cluster Messier 3 (M3). We give BVI light curves for 226 RR Lyrae, 2 SX Phe and 1 W Vir type variables, along with estimated fundamental photometric parameters such as intensity ...
Akerlof, Alard, Alard, Alcock, Alcock, Arellano Ferro, Bailey, Bakos, Bakos, Benkő, Benkő, Blazhko, Buchler, Cacciari, Carretta, Castellani, Castellani, Catelan, Catelan, Clement, Clement, Clement, Clement, Clement, Clementini, Corwin, Corwin, Cudworth, Dziembowski, G. Á. Bakos, Greenstein, Guhathakurta, Hartman, J. M. Benkő, J. Nuspl, Jerzykiewicz, Jurcsik, Jurcsik, Jurcsik, Jurcsik, Kaluzny, Kolláth, Kukarkin, Kukarkin, Larink, Layden, Mallik, Marconi, Moskalik, Murtagh, Müller, Nemec, Oaster, Olech, Olech, Olech, Oosterhoff, Panov, Press, Pritzl, Purdue, Roberts, Rood, Schechter, Smith, Soszyński, Stellingwerf, Stetson, Stetson, Strader, Szabó, Szeidl, Szeidl, Tucholke, Uglesich, Van Albada, Walker, Welty   +77 more
core   +2 more sources

Pulsating stars in the VMC survey

EPJ Web of Conferences, 2017
The VISTA survey of the Magellanic Clouds system (VMC) began observations in 2009 and since then, it has collected multi-epoch data at Ks and in addition multi-band data in Y and J for a wide range of stellar populations across the Magellanic system ...
Cioni Maria-Rosa L., Ripepi Vincenzo, Clementini Gisella, Groenewegen Martin A.T., Moretti Maria I., Muraveva Tatiana, Subramanian Smitha   +6 more
doaj   +1 more source

Precise Empirical Determination of Metallicity Dependence of Near-infrared Period–Luminosity Relations for RR Lyrae Variables

The Astrophysical Journal Letters, 2023
RR Lyrae variables are excellent Population II distance indicators thanks to their well-defined period–luminosity relations (PLRs) at infrared wavelengths.
Anupam Bhardwaj, Marcella Marconi, Marina Rejkuba, Richard de Grijs, Harinder P. Singh, Vittorio F. Braga, Shashi Kanbur, Chow-Choong Ngeow, Vincenzo Ripepi, Giuseppe Bono, Giulia De Somma, Massimo Dall’Ora   +11 more
doaj   +1 more source

Relationship between the Elemental Abundances and the Kinematics of Galactic-Field RR Lyrae Stars

, 2017
Data of our compiled catalog containing the positions, velocities, and metallicities of 415 RR~Lyrae variable stars and the relative abundances [el/Fe] of 12~elements for 101 RR~Lyrae stars, including four $\alpha$~elements (Mg, Ca, Si, and Ti), are used
Gozha, M. L., Koval', V. V., Marsakov, V. A.   +2 more
core   +1 more source

Pulsation Properties of Blazhko and Non-Blazhko RRab Stars

The Astrophysical Journal Supplement Series
In this study, we conduct a comparative analysis of the properties of Blazhko and non-Blazhko RRab stars. We identified 1054 non-Blazhko and 785 Blazhko RRab stars in the photometric data observed by the K2 mission, which, combined with those 37 stars ...
Peng Zong, Jian-Ning Fu, Jie Su, Bing-Kai Zhang, Gao-Chao Liu, Weichao Sun, Jiaxin Wang, Bo Zhang, Xueying Hu, Zhongrui Bai, Weikai Zong   +10 more
doaj   +1 more source

Two Different Weak Modulations in ab-type RR Lyrae Variable V838 Cyg, and Potential Influence of Metal Abundance on Blazhko Modulation

The Astronomical Journal, 2023
Noting the weakest modulation and relatively high metal abundance of the ab-type RR Lyrae star V838 Cyg, we collected the photometric data of this star from several sky surveys to carry out an in-depth analysis. The O − C diagram shows that the pulsation
L.-J. Li, S.-B. Qian, X.-D. Shi, L.-Y. Zhu   +3 more
doaj   +1 more source

Concerning the Distance to the Center of the Milky Way and its Structure [PDF]

, 2010
The distance to the Galactic center inferred from OGLE RR Lyrae variables observed in the direction of the bulge is Ro=8.1+-0.6 kpc. An accurate determination of Ro is hindered by countless effects that include an ambiguous extinction law, a bias for ...
Majaess, Daniel J.
core   +2 more sources

Analysis of RR Lyrae Stars in the Northern Sky Variability Survey [PDF]

The Astronomical Journal, 2006
68 pages, 26 figures, 9 tables, accepted to ...
Kinemuchi, K., Smith, H. A., Wozniak, P. R., McKay, T. A., Collaboration., the ROTSE   +4 more
openaire   +2 more sources

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

Variable stars in Local Group Galaxies - II. Sculptor dSph [PDF]

, 2016
We present the identification of 634 variable stars in the Milky Way dSph satellite Sculptor based on archival ground-based optical observations spanning $\sim$24 years and covering $\sim$ 2.5 deg$^2$.
Bernard, E. J., Bono, G., Cassisi, S., Dall'Ora, M., Ferraro, I., Fiorentino, G., Gallart, C., Iannicola, G., Martínez-Vázquez, C. E., Monelli, M., Stetson, P. B., Walker, A. R.   +11 more
core   +2 more sources