Release 11.12 ("Hergest Ridge")


Gclusters :: Bibliographic item "gc499"

Article ID: gc499
AuthorMonelli, M. et al.
TitleThe Absolute Age of the Globular Cluster M15 Using Near-infrared Adaptive Optics Images from PISCES/LBT
JournalThe Astrophysical Journal, Volume 812, Issue 1, article id. 25, 12 pp.
Year of publication2015 (on gclusters from 2015-11-25 10:14:20 )
Abstract(...) We investigated the absolute age of M15 by means of two methods: (i) by determining the age from the position of the main-sequence turnoff (MSTO), and (ii) by the magnitude difference between the MSTO and the well-defined knee detected along the faint portion of the MS. We derive consistent values of the absolute age of M15, that is, 12.9 ± 2.6 Gyr and 13.3 ± 1.1 Gyr, respectively.
TagsNGC 7078

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