193 citations · 566 across the 34 of their papers we have counts for
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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…
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…
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…
RR Lyrae stars in the globular cluster Palomar 2
A. Arellano Ferro, I. Bustos Fierro, S. Muneer +1
A CCD VI imaging time-series over 11-year is employed to explore the light curves of stars in the field of Palomar 2. We discovered 20 RRab and 1 RRc variables. A revision of Gaia-…
Decoding the X-ray flare from MAXI J0709-159 using optical spectroscopy and multi-epoch photometry
Suman Bhattacharyya, Blesson Mathew, Savithri H Ezhikode +10
We present a follow-up study on the recent detection of two X-ray flaring events by MAXI/GSC observations in soft and hard X-rays from MAXI J0709-159 in the direction of HD 54786 (…
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…