Release 11.12 ("Hergest Ridge")
Article ID: gc347 | |
Author | Roh, Dong-Goo et al. |
Title | Two Distinct Red Giant Branches in the Globular Cluster NGC 288 |
Journal | The Astrophysical Journal Letters, Volume 733, Issue 2, article id. L45, |
Year of publication | 2011 (on gclusters from 2013-07-03 16:24:38 ) |
Abstract | We report the presence of two distinct red giant branches (RGBs) in the globular cluster NGC 288 from the narrowband calcium and Strömgren b and y photometry obtained at the CTIO 4 m Blanco telescope. The RGB of NGC 288 is clearly split into two in the hk [=(Ca - b) - (b - y)] index, while the split is not shown in the b - y color. Unlike other globular clusters with multiple populations reported thus far, the horizontal branch of NGC 288 is only mildly extended... |
Tags | NGC 288 |
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