Results 11 to 20 of about 23,538 (190)
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
THE RR LYRAE VARIABLES AND HORIZONTAL BRANCH OF NGC 6656 (M22), [PDF]
, 2013 The first calibrated broadband UBVI time-series photometry is presented for the RR Lyrae variable stars in NGC6656 (M22), with observations spanning a range of twenty-two years. We have also redetermined the variability types and periods for the RR Lyrae
Andrea Kunder +12 more
openalex +3 more sources
A geometric framework for outlier detection in high‐dimensional data
WIREs Data Mining and Knowledge Discovery, Volume 13, Issue 3, May/June 2023., 2023 A geometric framework exploiting the metric structure of a data set allows to (1) conceptualize outlier detection on a general level and (2) to conduct outlier detection in a principled and canonical way in very different high‐dimensional and/or non‐tabular data types such as functions (A.1), graphs (B.1), or images (C.1).
Moritz Herrmann +2 more
wiley +1 more source
Infrared K-band Photometry of Field RR Lyrae Variable Stars [PDF]
Astronomical Journal, 2019 We present multi-epoch infrared photometry in the Ks-band for 74 bright RR Lyrae variable stars tied directly to the Two-Micron All-Sky Survey (2MASS) photometric system. We systematize additional K-band photometry from the literature to the 2MASS system
A. Layden +4 more
semanticscholar +1 more source
ASAS-SN Discovery of 4880 Bright RR Lyrae Variable Stars [PDF]
, 2018 We present a catalog of 4880 newly identified RR Lyrae variable stars (4433 RRab, 446 RRc and 1 RRd) found during the search for supernovae by the All-Sky Automated Survey for Supernovae (ASAS-SN).
T. Jayasinghe +9 more
semanticscholar +1 more source
THE RR LYRAE VARIABLE POPULATION IN THE PHOENIX DWARF GALAXY [PDF]
, 2014 We present the first detailed study of the RR Lyrae variable population in the Local Group dSph/dIrr transition galaxy, Phoenix, using previously obtained HST/WFPC2 observations of the galaxy.
A. Ordoñez +2 more
semanticscholar +1 more source
The Milky Way Revealed by Variable Stars. I. Sample Selection of RR Lyrae Stars and Evidence for Merger History [PDF]
Astrophysical Journal Supplement Series, 2021 In order to study the Milky Way, RR Lyrae (RRL) variable stars identified by Gaia, ASAS-SN, and ZTF sky survey projects have been analyzed as tracers in this work.
I. Ablimit +4 more
semanticscholar +1 more source
CU Comae: A New Field Double-Mode RR Lyrae Variable, the Most Metal-poor Discovered to Date [PDF]
, 2000 We report the discovery of a new double-mode RR Lyrae variable (RRd) in the field of our Galaxy: CU Comae. CU Com is the sixth such RRd identified to date and is the most metal-poor RRd ever detected.
G. Clementini +14 more
semanticscholar +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 +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 +10 more
doaj +1 more source