A time-series VI study of the variable stars of the globular cluster NGC 6397
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 cluster field. We assessed the membership of the variables with an astrometric analysis based on Gaia DR2 data. The cluster colour-magnitude diagram was differentially
Ahumada, J. A. et al.
Fecha de publicación:
10
2021