65 citations · 518 across the 38 of their papers we have counts for
7 papers · 1 filter
On the membership of variable stars in galactic globular clusters: The Oosterhoff gap
Z. Prudil, A. Arellano Ferro
We have performed a critical evaluation of the membership status of all variable stars in globular clusters recorded in the Catalogue of Variable Stars in Globular Clusters (CVSGC)…
An "alien" called Oosterhoff dichotomy?
E. Luongo, V. Ripepi, M. Marconi +4
In this letter we investigate the origin of the Oosterhoff dichotomy, considering recent discoveries related to several ancient merging events of external galaxies with the Milky W…
The variable stars population of the extended young globular cluster NGC 1851
A. Arellano Ferro, C. E. Pérez Parra, M. A. Yepez +3
We report VI CCD photometry of the globular cluster cluster NGC 1851. We aim to study the membership of the variable stars detected in the field of the cluster as listed in the Cat…
The Galactic Bulge exploration III.: Calcium Triplet Metallicities for RR Lyrae Stars
Andrea Kunder, Zdenek Prudil, Claire Skaggs +5
RR Lyrae stars are excellent tracers of stellar populations for old, metal-poor components in the Milky Way Galaxy and the Local Group. Their luminosities have a metallicity-depend…
The variable stars in the field of the bulge cluster NGC 6558
A. Arellano Ferro, L. J. Zerpa Guillen, M. A. Yepez +3
We made a survey of the variable stars in a arcmin centered on the field of the Galactic bulge cluster NGC 6558. A total of 78 variables was found in the fie…
The Galactic bulge exploration II. Line-of-sight velocity templates for single-mode RR~Lyrae stars
Z. Prudil, R. Smolec, A. Kunder +2
We present a new set of tools to derive systemic velocities for single-mode RR~Lyrae stars from visual and near-infrared spectra. We derived scaling relations and line-of-sight vel…
RR Lyrae Stars Belonging to the Candidate Globular Cluster Patchick 99
Evan Butler, Andrea Kunder, Zdenek Prudil +16
Patchick 99 is a candidate globular cluster located in the direction of the Galactic bulge, with a proper motion almost identical to the field and extreme field star contamination.…