15 citations · 57 across the 14 of their papers we have counts for
14 papers
A Homogenized Catalogue of Variable Stars in the Globular Cluster M22: Membership, Physical Parameters, and Distance
M. A. Yepez, B. Moreno-Amaro, M. Ornelas-Castañeda +2
We present a photometric analysis of the variable stars in the field of the globular cluster M22 (NGC 6656), using time-series photometry from the literature and from OGLE and Gaia…
The variable stars in the compact halo globular cluster NGC 5634 visited again
A. Arellano Ferro, R. Michel, M. A. Yepez +3
We present new time-series CCD \emph{VR} photometry of the globular cluster NGC 5634. We aim to use the known RR Lyrae stars, members of the cluster, as indicators of mean metallic…
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 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…
Long term CCD photometry of the distant cluster NGC 2419: the CMD revisited
A. Arellano Ferro, S. Muneer, Sunetra Giridhar +4
Employing \emph{VI} images of NGC 2419 acquired over 17 years, light curves for most of the known variables in the field of the cluster are produced. A cluster membership analysis…
Variable stars in the field of the Galactic bulge globular cluster NGC 6522
A. Arellano Ferro, Z. Prudil, M. A. Yepez +2
We present a comprehensive analysis of the variable stars projected on the field of the Galactic bulge globular cluster NGC 6522, offering valuable insights into their characterist…
The variable stars in the field of NGC 6139: A critical approach to their reddening and membership
M. A. Yepez, A. Arellano Ferro, I. Bustos Fierro +1
We present a CCD time-series analysis of the globular cluster NGC 6139 and its variable star population. Using the astrometric data available in -DR3 we performed a memb…
Detailed analysis of the variable star population in the globular cluster NGC 7006
A. Arellano Ferro, F. C. Rojas Galindo, I. H. Bustos Fierro +3
A five year CCD photometric \emph{VI} time-series of NGC 7006 is employed to perform a detailed analysis of the known population of variable stars. In the process we have corrected…
A new visit to the variable stars in M56 and its colour magnitude diagram structure
D. Deras, A. Arellano Ferro, I. Bustos Fierro +1
We present a CCD photometric study and a membership analysis of the globular cluster M56 (NGC 6779). This produced a decontaminated CMD from field stars, which enabled a bette…
A new photometric study of M14 (NGC 6402): An interpretation of the Horizontal Branch and beyond
M. A. Yepez, A. Arellano Ferro, D. Deras +3
We present a CCD photometric study of the globular cluster M14. Particular attention is given to the variable stars. This allowed new classifications and cluster membership co…
A time-series VI study of the variable stars of the globular cluster NGC 6397
J. A. Ahumada, A. Arellano Ferro, I. Bustos Fierro +4
We present a new time-series VI CCD photometry of the globular cluster NGC 6397, from which we obtained and analysed the light curves of 35 variables carefully identified in the cl…
The globular cluster M10: Reassessment of stellar membership, distance and age using its variable and HB stars
A. Arellano Ferro, M. A. Yepez, S. Muneer +4
Time-series VI CCD photometry of the globular cluster M10 (NGC 6254) is employed to perform a detailed identification, inspection of their light curves, their classification and th…
CCD \emph{VI} time-series of the extremely metal poor globular cluster M92: revisiting its variable star population
M. A. Yepez, A. Arellano Ferro, D. Deras
We present an analysis of \emph{VI} CCD time-series photometry of the Oo II type globular cluster M92. The variable star population of the cluster is studied with the aim of revisi…
The variable star population in the globular cluster NGC 6934
M. A. Yepez, A. Arellano Ferro, S. Muneer +1
We report an analysis of new and CCD time-series photometry of the globular cluster NGC 6934. Through the Fourier decomposition of the RR Lyrae light curves, the mean value…