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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