NGC 2419: a large and extreme second generation in a currently undisturbed cluster
We analyse complementary Hubble Space Telescope and Subaru data for the globular cluster NGC 2419. We make a detailed analysis of the horizontal branch (HB), which is composed of two main groups of stars: the luminous blue HB stars, which extend by evolution into the RR Lyrae and red HB region, and a fainter, extremely blue population. We examine
di Criscienzo, M. et al.
Fecha de publicación:
7
2011