RR LYRAE STARS IN THE GLOBULAR CLUSTER PALOMAR 2
نویسندگان
چکیده
A CCD VI imaging time-series over 11-year is employed to explore the light curves of stars in field Palomar 2. We discovered 20 RRab and 1 RRc variables. revision Gaia-DR3 data enabled us identify 10 more variables confirm nature 6 them one RGB. The cluster membership discussed, 18 are most likely members. Fourier curve decomposition for 11 best quality member leads independent estimates distance 27.2 ± 1.8 kpc [Fe/H]ZW = -1.39 0.55. as Oo I type.
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ژورنال
عنوان ژورنال: Revista Mexicana De Astronomia Y Astrofisica
سال: 2023
ISSN: ['0185-1101']
DOI: https://doi.org/10.22201/ia.01851101p.2023.59.01.01