The Red Giant Branch Luminosity Function Bump ⋆
نویسنده
چکیده
We present observational estimates of the magnitude difference between the luminosity function red giant branch bump and the horizontal branch (∆F555W HB ), and of star counts in the bump region (Rbump), for a sample of 54 Galactic globular clusters observed by the HST. The large sample of stars resolved in each cluster, and the high photometric accuracy of the data allowed us to detect the bump also in a number of metal
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