Identification of temperature anomaly RR Lyrae stars in LAMOST survey, misclassification and binarities
Sign Up to like & getrecommendations! Published in 2020 at "Research in Astronomy and Astrophysics"
DOI: 10.1088/1674-4527/20/6/94
Abstract: RR Lyrae stars, a well-known type of pulsating variable stars, have been known about for more than a century. A large amount of photometric data on RR Lyrae stars has been accumulated by space- and… read more here.
Keywords: lyrae stars; survey; temperature anomaly; anomaly lyrae ... See more keywords
Modelling the stellar halo with RR-Lyrae stars
Sign Up to like & getrecommendations! Published in 2021 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stab3711
Abstract: A seven-parameter distribution function (DF) is fitted to 20 000 RR-Lyrae stars for which only astrometric data are available. The observational data are predicted by the DF in conjunction with the gravitational potential of a self-consistent… read more here.
Keywords: lyrae stars; halo lyrae; modelling stellar; halo ... See more keywords
Photometric and radial-velocity time series of RR Lyrae stars in M3: analysis of single-mode variables
Sign Up to like & getrecommendations! Published in 2017 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stx382
Abstract: We present the first simultaneous photometric and spectroscopic investigation of a large set of RR Lyrae variables in a globular cluster. The radial-velocity data presented comprise the largest sample of RVs of RR Lyrae stars… read more here.
Keywords: lyrae stars; radial velocity; rrab stars; time series ... See more keywords
Variable stars in local group galaxies - IV. RR Lyrae stars in the central regions of the low-density galaxy Crater II
Sign Up to like & getrecommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/sty1645
Abstract: We present a search and analysis of variable stars in the recently discovered Crater~II dwarf galaxy. Based on $B$, $V$, $I$ data collected with the Isaac Newton Telescope (FoV$\sim$0.44 square degrees) we detected 37 variable… read more here.
Keywords: crater; galaxy; lyrae stars; local group ... See more keywords
The Carnegie RR Lyrae Program: Mid-infrared Period-Luminosity relations of RR Lyrae stars in Reticulum
Sign Up to like & getrecommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/sty1959
Abstract: We analysed 30 RR Lyrae stars (RRLs) located in the Large Magellanic Cloud (LMC) globular cluster Reticulum that were observed in the 3.6 and 4.5 $\mu$m passbands with the Infrared Array Camera (IRAC) on board… read more here.
Keywords: lyrae stars; mid infrared; period luminosity; luminosity relations ... See more keywords
Masses of RR Lyrae Stars with Different Chemical Abundances in the Galactic Field
Sign Up to like & getrecommendations! Published in 2019 at "Astronomy Reports"
DOI: 10.1134/s1063772919020069
Abstract: The surface gravities and effective temperatures have been added to a compilative catalog published earlier, which includes the relative abundances of several chemical elements for 100 field RR Lyrae stars. These atmoshperic parameters and evolutionary… read more here.
Keywords: field; stars different; masses lyrae; chemical abundances ... See more keywords