Results 1 to 10 of about 5,486 (160)

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

PLoS ONE, 2021
We study the light curves of pulsating variable stars using a complex network approach to build visibility graphs. We consider various types of variables stars (e.g., Cepheids, δ Scuti, RR Lyrae), build two types of graphs (the normal visibility graph ...
Víctor Muñoz, N. Elizabeth Garcés
doaj   +3 more sources

A Study of Double- and Multi-mode RR Lyrae Variables

Open Astronomy, 2015
We present the results of our new study of known RR Lyrae variable stars. All observations available for these stars in the Catalina Surveys were analyzed, and double-mode variations were identified.
Khruslov A. V.
doaj   +3 more sources

Identifying RR Lyrae Variable Stars in Six Years of the Dark Energy Survey [PDF]

Astrophysical Journal, 2021
Katelyn M Stringer, Alex Drlica-Wagner, Lucas M Macri   +2 more
exaly   +2 more sources

RR Lyrae Stars and Anomalous Cepheids as Population Tracers in Local Group Galaxies

Universe, 2022
We discuss the use and importance of pulsating variable stars as population tracers in Local Group galaxies. Among bright variable crossing the classical instability strip, we mostly focus on RR Lyrae stars and Anomalous Cepheids.
Matteo Monelli, Giuliana Fiorentino
doaj   +1 more source

Proper identification of RR Lyrae Stars brighter than 12.5 mag [PDF]

, 2005
RR Lyrae stars are of great importance for investigations of Galactic structure. However, a complete compendium of all RR-Lyraes in the solar neighbourhood with accurate classifications and coordinates does not exist to this day.
Altmann, Altmann, Altmann, Beers, Dambis, de Boer, Fernley, G. Maintz, Layden, Layden, Maintz, Martin, Mennessier, Schmidt   +13 more
core   +1 more source

Modulation of the Blazhko Cycle in LS Her

The Astronomical Journal, 2023
We present analysis of the RR Lyrae star, LS Her, and confirm the previously reported modulation to its Blazhko cycles. We performed Fourier analysis on two sectors (Sector 24 and 25) of data from the Transiting Exoplanet Survey Satellite (TESS) spanning
Ronald Wilhelm, Kenneth Carrell, Hannah H. Means, Adam Popowicz, Krzysztof Bernacki, Mariusz Frąckiewicz, Marek Szczepański, Adam Dustor, Jaylon Lockett, Jill Taylor, Stasha Youngquist   +10 more
doaj   +1 more source

Revisiting CoRoT RR Lyrae stars: detection of period doubling and temporal variation of additional frequencies [PDF]

, 2014
We search for signs of period doubling in CoRoT RR Lyrae stars. The occurrence of this dynamical effect in modulated RR Lyrae stars might help us to gain more information about the mysterious Blazhko effect.
Baglin, A., Benkő, J. M., Borgne, J. -F. Le, Chapellier, E., Guggenberger, E., Kolenberg, K., Paparó, M., Poretti, E., Szabó, R., Weiss, W. W.   +9 more
core   +5 more sources

Little Bear’s pulsating stars: Variable star census of UMi dSph Galaxy

EPJ Web of Conferences, 2017
Recent observations and a photometric search for variable stars in the Ursa Minor dwarf spheroidal galaxy (UMi dSph) are presented. Our observations were taken at Apache Point Observatory in 2014 and 2016 using the 0.5m ARCSAT telescope and the West ...
Kinemuchi K., Jeffery E., Kuehn C., Grabowski K., Nemec J.   +4 more
doaj   +1 more source

Study of the Blazhko Type RRc stars in the Stripe 82 Region Using SDSS and ZTF

The Astronomical Journal, 2023
RR Lyrae stars (RRLs) are pulsating stars, many of which also show a long-term variation called the Blazhko effect which is a modulation of amplitude and phase of the lightcurve.
Vaidehi Varma, József M. Benkő, Chow-Choong Ngeow   +2 more
doaj   +1 more source

Catalogue of variable stars in Milky Way globular clusters

EPJ Web of Conferences, 2017
Globular cluster variable stars have been studied for more than a century. In the early investigations, more than 90% of the known variables were of the RR Lyrae type.
Clement Christine
doaj   +1 more source