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Browsing by Author "Yepez, M. A"

Browsing by Author "Yepez, M. A"

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  • Detailed analysis of the variable star population in the globular cluster NGC 7006 
    Arellano Ferro, A; Rojas Galindo, F. C; Bustos Fierro, I. H; Muneer, S; Yepez, M. A; Giridhar, S (Oxford University Press on behalf of Royal Astronomical Society, 2023-02)
    A 5-yr CCD photometric 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 inconsistent classifications, sky coordinates and ...
  • The Globular cluster M10: reassessment of stellar membership, distance, and age using its variable and HB stars 
    Arellano Ferro, A; Yepez, M. A; Muneer, S; Bustos Fierro, I. H; Schroder, K. P; Giridhar, S; Calderon, J. H (Oxford University Press on behalf of the Royal Astronomical Society, 2020-12)
    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 their cluster membership, of all the known ...
  • A new photometric study of M14 (NGC 6402): an interpretation of the horizontal branch and beyond 
    Yepez, M. A; Arellano Ferro, A; Deras, D; Bustos Fierro, I; Muneer, S; Schröder, K. -P (Oxford University Press on behalf of Royal Astronomical Society, 2022-03)
    We present a CCD VI photometric study of the globular cluster M14. Particular attention is given to the variable stars. This allowed new classifications and cluster membership considerations. New variables are reported: 3 ...
  • THE VARIABLE STAR POPULATION IN THE GLOBULAR CLUSTER NGC 6934 
    Yepez, M. A; Ferro, A. A; Muneer, S; Giridhar, S (Instituto de Astronomia, 2018-04)
    We report an analysis of new V and I CCD time-series photometry of the globular cluster NGC 6934. Through the Fourier decomposition of the RR Lyrae light curves the mean values of [Fe/H] and the distance of the cluster ...
  • Variable stars in Palomar 13; an evaporating globular cluster 
    Yepez, M. A; Ferro, A. A; Schoeder, K. P; Muneer, S; Giridhar, S; Allen, C (Elsevier B.V, 2019-08)
    We present new CCD VI photometry of the distant globular cluster Pal 13. Fourier decomposition of the light curves of the three cluster member RRab stars lead to estimations of [Fe/H] = −1.65, and a distance of 23.67 ± ...
  • Variable Stars in Palomar 13; an Evaporating Globular Cluster 
    Yepez, M. A; Ferro, A. Arellano; Schröder, K. P.; Muneer, S; Giridhar, Sunetra; Allen, Christine (Astronomical Society of the Pacific, 2021-06)
    We present new CCD VI photometry of the globular cluster Pal 13. Fourier decomposition of the light curves of RRab stars lead to estimations of [Fe/H]ZW = -1.65±0.15, and a distance to the cluster of 23.67±0.57 kpc. A ...

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