Candidate RR Lyrae Associated with the Ultrafaint Dwarf Galaxy Aquarius III
The Astronomical JournalWe report the search of RR Lyrae in the vicinity of a newly discovered ultrafaint dwarf galaxy, Aquarius III. Based on the known RR Lyrae catalogs and gri -band light curves retrieved from public archives, we identified a RR Lyrae with distance ...
Chow-Choong Ngeow, Anupam Bhardwaj
doaj +1 more source
RR Lyrae Stars In The GCVS Observed By The Qatar Exoplanet Survey [PDF]
, 2014 We used the light curve archive of the Qatar Exoplanet Survey (QES) to investigate the RR Lyrae variable stars listed in the General Catalogue of Variable Stars (GCVS).
Alsubai, K. A. +7 more
core +1 more source
A Catalogue of RR Lyrae Stars from the Northern Sky Variability Survey
, 2006 A search for RR Lyrae stars has been conducted in the publicly available data of the Northern Sky Variability Survey (NSVS). Candidates have been selected by the statistical properties of their variation; the standard deviation, skewness and kurtosis ...
Akerlof +41 more
core +1 more source
Search for high-amplitude Delta Scuti and RR Lyrae stars in Sloan Digital Sky Survey Stripe 82 using principal component analysis [PDF]
, 2012 We propose a robust principal component analysis (PCA) framework for the exploitation of multi-band photometric measurements in large surveys. Period search results are improved using the time series of the first principal component due to its optimized ...
Bartholdi, P. +11 more
core +2 more sources
Search for the Blazhko Effect in Field RR Lyrae Stars Using LINEAR and ZTF Light Curves
The Astronomical JournalWe analyzed the incidence and properties of RR Lyrae stars that show evidence for amplitude and phase modulation (the so-called Blazhko Effect) in a sample of ∼3000 stars with LINEAR and ZTF light curve data collected during the periods of 2002–2008 and ...
Ema Donev, Željko Ivezić
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
The Axial Rotation and Variable Macroturbulence of RR Lyrae and Red Horizontal Branch Stars [PDF]
Astronomical Journal, 2019 We have derived relations between FWHMs and equivalent widths of metallic absorption lines in the spectra of RR Lyrae stars to estimate new upper limits on the axial equatorial rotational velocities of RR Lyrae and metal-poor red horizontal branch (RHB ...
G. Preston +4 more
semanticscholar +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
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
RADIATIVE TRANSFER EFFECTS ON THE COLORS OF RR LYRAE STARS
Odessa Astronomical Publications, 2017 The methods of Davis and Cox (1980), are applied to a series of models described by Bono and Stellingwerf (1994) to deter-mine the colors of RR Lyrae stars.
C. G. Davis
doaj +1 more source