11 citations · 16 across the 2 of their papers we have counts for
6 papers
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…
NGC 1261: A time-series \emph{VI} study of its variable stars
A. Arellano Ferro, I. H. Bustos Fierro, J. H. Calderón +1
Time-series \emph{VI} CCD photometry of the globular cluster NGC 1261 is employed to study its variable star population. A membership analysis of most variables based on Gaia~DR2 p…
Extraction of globular clusters members with Gaia DR2 astrometry
I. H. Bustos Fierro, J. H. Calderón
In this work we present a method to identify possible members of globular clusters using data from Gaia DR2. The method consists of two stages: the first one based on a clustering…
Metallicity and distance of NGC 6362 from its RR Lyrae and SX Phoenicis stars
A. Arellano Ferro, J. A. Ahumada, I. H. Bustos Fierro +2
New time-series VI CCD photometry of the globular cluster NGC 6362 is studied with the aim of estimating the reddening, mean metallicity and distance of the cluster from its popula…