Release 11.12 ("Hergest Ridge")


Gclusters :: Bibliographic item "gc463"

Article ID: gc463
AuthorMucciarelli, A.; Lovisi, L.; Lanzoni, B.; Ferraro, F. R.
TitleThe Helium Abundance in the Metal-poor Globular Clusters M30 and NGC 6397
JournalThe Astrophysical Journal, Volume 786, Issue 1, article id. 14, 8 pp.
Year of publication2014 (on gclusters from 2014-06-12 16:02:18 )
AbstractWe present the helium abundance of the two metal-poor clusters M30 and NGC6397. Helium estimates have been obtained by using the high-resolution spectrograph FLAMES at the ESO Very Large Telescope and by measuring the HeI line at 4471 A in 24 and 35 horizontal branch stars in M30 and NGC6397, respectively. This sample represents the largest dataset of He abundances collected so far in metal-poor clusters...
Also available at:http://arxiv.org/abs/1403.0595
TagsNGC 7099 , NGC 6397

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