Results 11 to 20 of about 1,014 (294)

Magnetic Activity of Different Types of Variable Stars Observed by TESS Mission [PDF]

Universe, 2023
The investigation of the magnetic activity of different types of variable stars holds significant implications for our understanding of the physical processes and evolution of stars.
Ming Zhong, Liyun Zhang, Zilu Yang, Tianhao Su   +3 more
doaj   +2 more sources

Pulsating stars in ω Centauri. Near-IR properties and period-luminosity relations [PDF]

EPJ Web of Conferences, 2017
ω Centauri (NGC 5139) contains many variable stars of different types, including the pulsating type II Cepheids, RR Lyrae and SX Phoenicis stars. We carried out a deep, wide-field, near-infrared (IR) variability survey of ω Cen, using the VISTA telescope.
Navarrete Camila, Catelan Márcio, Contreras Ramos Rodrigo, Alonso-García Javier, Gran Felipe, Dékány István, Minniti Dante   +6 more
doaj   +4 more sources

Pulsating stars in the VMC survey [PDF]

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   +5 more sources

Pulsating star research and the Gaia revolution [PDF]

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   +5 more sources

Comparing the asteroseismic properties of pulsating extremely low-mass pre-white dwarf stars and δ Scuti stars [PDF]

EPJ Web of Conferences, 2017
We present the first results of a detailed comparison between the pulsation properties of pulsating Extremely Low-Mass pre-white dwarf stars (the pre-ELMV variable stars) and δ Scuti stars.
Arias J.P.Sánchez, Córsico A.H., Romero A.D., Althaus L.G.   +3 more
doaj   +4 more sources

Classification of Periodic Variable Stars from TESS [PDF]

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   +2 more sources

Pulsating variable stars as tracers of galactic structure and interaction mechanisms [PDF]

, 2012
My PhD project has been focused on the study of the pulsating variable stars in two ultra-faint dwarf spheroidal satellites of the Milky Way, namely, Leo IV and Hercules; and in two fields of the Large Magellanic Cloud (namely, the Gaia South Ecliptic Pole calibration field, and the 30 Doradus region) that were repeatedly observed in the KS band by ...
Moretti, Maria Ida <1982>
openaire   +3 more sources

Pulsating Variable Stars in the MACHO Bulge database: The Semiregular Variables [PDF]

, 1997
We review the pulsating stars contained in the top 24 fields of the MACHO bulge database, with special emphasis on the red semiregular stars. Based on period, amplitude and color cuts, we have selected a sample of 2000 semiregular variables with ...
Minniti, D., Alcock, C., Allsman, R. A., Alves, D. R., Axelrod, T. S., Becker, A., Bennett, D. P., Cook, K. H., Freeman, K. C., Griest, K., Marshall, S. L., Peterson, B. A., Pratt, M. R., Quinn, P. J., Rodgers, A. W., Stubbs, C. W., Sutherland, W., Tomaney, A., Vandehei, T., Welch, D. L.   +19 more
openaire   +4 more sources

Magnetic and pulsational variability of Przybylski’s star (HD 101065) [PDF]

Monthly Notices of the Royal Astronomical Society, 2018
11 pages, 4 tables, 7 figures, accepted for publication in ...
Hubrig, S., Järvinen, S. P., Madej, Jerzy, Bychkov, V. D., Ilyin, I., Schöller, M., Bychkova, L. V.   +6 more
openaire   +3 more sources

The pulsating variable star population in DDO210 [PDF]

Monthly Notices of the Royal Astronomical Society, 2015
We have probed the pulsating variable star content of the isolated Local Group dwarf galaxy, DDO210 (Aquarius), using archival Advanced Camera for Surveys/$Hubble$ $Space$ $Telescope$ imaging in the F475W and F814W passbands. We find a total of 32 RR Lyrae stars (24 ab-type, 8 c-type) and 75 Cepheid variables. The mean periods of the ab-type and c-type
Ordoñez, Antonio J., Sarajedini, Ata
openaire   +2 more sources