Results 41 to 50 of about 5,541 (198)
Pulsating stars in ω Centauri. Near-IR properties and period-luminosity relations
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 +6 more
doaj +1 more source
Photometry of Variable Stars from THU-NAOC Transient Survey I: The First 2 Years [PDF]
, 2015 In this paper, we report the detections of stellar variabilities from the first 2-year observations of sky area of about 1300 square degrees from the Tsinghua University-NAOC Transient Survey (TNTS). A total of 1237 variable stars (including 299 new ones)
Chen, Juncheng +11 more
core +2 more sources
Progress report on the K2 RR Lyrae survey
EPJ Web of Conferences, 2017 We have initiated a large survey with K2, to observe thousands of RR Lyrae stars along the ecliptic. The high photometric precision and the 70-90-day continuous coverage will allow us to investigate the light variation of these galactic structure tracer ...
Szabó Róbert
doaj +1 more source
RR Lyrae binary systems in the Galactic bulge
EPJ Web of Conferences, 2017 The possibility of a direct mass measurement of RR Lyrae variable stars in binary systems has remained elusive for many years, due to the apparent paucity of such systems.
Hajdu Gergely, Catelan Márcio
doaj +1 more source
Variability in NGC 3201 Giant Stars
The Astronomical Journal, 2023 We present the analysis of 510 light curves in V and I bands of 255 giant stars in the globular cluster NGC 3201. Our aim is to expand the sample of new types of variables reported in a previous study. These variables show a short period ( P _V < 0.6 day)
C. C. Cortés +4 more
doaj +1 more source
, 2014 We present optical and near-infrared UBVRIJHK photometry of stars in the Galactic globular cluster M4 (NGC 6121) based upon a large corpus of observations obtained mainly from public astronomical archives. We concentrate on the RR Lyrae variable stars in
Bono, G. +8 more
core +1 more source
Bulge RR Lyrae stars in the VVV tile $\textit{b201}$
, 2015 The VISTA Variables in the V\'ia L\'actea (VVV) Survey is one of the six ESO public surveys currently ongoing at the VISTA telescope on Cerro Paranal, Chile. VVV uses near-IR ($ZYJHK_{\rm s}$) filters that at present provide photometry to a depth of $K_{\
Catelan, M. +7 more
core +1 more source
The Astrophysical Journal, 2023 We present new empirical infrared period–luminosity–metallicity (PLZ) and period–Wesenheit–metallicity (PWZ) relations for RR Lyae based on the latest Gaia Early Data Release 3 (EDR3) parallaxes.
Joseph P. Mullen +10 more
doaj +1 more source
Serendipitous discovery of RR Lyrae stars in the Leo V ultra-faint galaxy
, 2017 During the analysis of RR Lyrae stars discovered in the High cadence Transient Survey (HiTS) taken with the Dark Energy Camera at the 4-m telescope at Cerro Tololo Inter-American Observatory, we found a group of three very distant, fundamental mode ...
Carlin, Jeffrey L. +11 more
core +1 more source
The Determination Of Reddening From Intrinsic VR Colors Of RR Lyrae Stars [PDF]
, 2009 New R-band observations of 21 local field RR Lyrae variable stars are used to explore the reliability of minimum light (V-R) colors as a tool for measuring interstellar reddening.
Alcock +34 more
core +3 more sources