Results 71 to 80 of about 995 (187)

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

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

RR Lyrae variables in globular clusters and nearby galaxies [PDF]

International Astronomical Union Colloquium, 2004
AbstractI point out that the Oosterhoff dichotomy for globular cluster and field RR Lyrae stars may place the strongest constraints so far on the number of dwarf spheroidal-like protogalactic fragments that may have contributed to the formation of the Galactic halo.
openaire   +2 more sources

Pulsating star research and the Gaia revolution

EPJ Web of Conferences, 2017
In this article we present an overview of the ESA Gaia mission and of the unprecedented impact that Gaia will have on the field of variable star research.
Eyer Laurent, Clementini Gisella, Guy Leanne P., Rimoldini Lorenzo, Glass Florian, Audard Marc, Holl Berry, Charnas Jonathan, Cuypers Jan, Ridder Joris De, Evans Dafydd W., de Fombelle Gregory Jevardat, Lanzafame Alessandro, Lecoeur-Taibi Isabelle, Mowlavi Nami, Nienartowicz Krzysztof, Riello Marco, Ripepi Vincenzo, Sarro Luis, Süveges Maria   +19 more
doaj   +1 more source

Metal‐rich RR Lyrae Variables. I. The Evolutionary Scenario

The Astrophysical Journal, 1997
This paper presents evolutionary computations which investigate the theoretical predictions concerning metal rich RR Lyrae pulsators found both in the Galactic field and in the Galactic bulge. The main aim of this investigation is to provide a homogeneous evolutionary context for further analyses concerning the pulsational properties of these evolving ...
Bono, Giuseppe, Caputo, Filippina, Cassisi, Santi, Castellani, Vittorio, Marconi, Marcella   +4 more
openaire   +2 more sources

Faint (and bright) variable stars in the satellites of the Milky Way

EPJ Web of Conferences, 2017
I describe two ongoing projects related with variable stars in the satellites of the MilkyWay. In the first project, we are searching for dwarf Cepheid stars (a.k.a δ Scuti and/or SX Phe) in some of the classical dwarf spheroidal galaxies. Our goal is to
Vivas A. Katherina
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

PERIOD CHANGE SIMILARITIES AMONG THE RR LYRAE VARIABLES IN OOSTERHOFF I AND OOSTERHOFF II GLOBULAR SYSTEMS [PDF]

, 2010
Andrea Kunder, A. R. Walker, P. B. Stetson, G. Bono, J. M. Nemec, R. De Pietri, M. Monelli, S. Cassisi, G. Andreuzzi, M. Dall’Ora, Alessandra Di Cecco, M. Zoccali   +11 more
openalex   +1 more source

Stellar Variability and Distance Indicators in the Near-infrared in Nearby Galaxies. I. RR Lyrae and Anomalous Cepheids in Draco Dwarf Spheroidal

The Astronomical Journal
The Draco Dwarf spheroidal (dSph) galaxy is one of the nearest and the most dark-matter-dominated satellites of the Milky Way. We obtained multiepoch near-infrared (NIR, JHK _s ) observations of the central region of Draco dSph covering a sky area of ∼21′
Anupam Bhardwaj, Marina Rejkuba, Chow-Choong Ngeow, Marcella Marconi, Vincenzo Ripepi, Abhinna Sundar Samantaray, Harinder P. Singh   +6 more
doaj   +1 more source

RR Lyrae variables in Omega Centauri: a theoretical route

, 2001
11 pages with 9 eps figs, newpasp.sty, to be published in the "Omega Centauri: a Unique Window into Astrophysics" (Cambridge, Aug. 2001), ASP Conf. Ser. edited by F. van Leeuwen, G.
Castellani V, DEGL'INNOCENTI, SCILLA, Marconi M.   +2 more
openaire   +3 more sources

The Privileged Life of a Theoretical Observer. [PDF]

Sol Phys, 2022
Gough D.
europepmc   +1 more source