27 citations · 49 across the 6 of their papers we have counts for
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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…
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…
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…
NGC 6712: the variable star population of a tidally disrupted globular cluster
D. Deras, A. Arellano Ferro, C. Lázaro +4
We present an analysis of CCD time series photometry of globular cluster NGC 6712. Our main goal is to study the variable star population as indicators of the cluster m…
A new study of the variable star population in the Hercules globular cluster (M13; NGC 6205)
D. Deras, A. Arellano Ferro, C. Lázaro +4
We present the results from CCD time-series photometry of the globular cluster M13 (NGC 6205). From the Fourier decomposition of the light curves of RRab and RRc stars we foun…