Other
Scientific paper
Feb 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003noao.prop..456d&link_type=abstract
NOAO Proposal ID #2003A-0456
Other
Scientific paper
We have found a super-Li-rich F-dwarf in NGC 6633, an iron-poor analogue of the better studied Hyades and Praesepe open clusters. This (currently) unique star may be the smoking gun for the action of diffusion, models of which predict a narrow ``Li-Peak'' at roughly the right temperature. Such strong evidence for the action of diffusion has not been seen in the F-stars of other young clusters and we hypothesize that this may be due to the low overall metallicity of NGC 6633. If diffusion is prevalent in all the hot F-stars of NGC 6633, then models make quite specific predictions about the behavior of Be abundances, which we will test using the Keck I/HIRES combination. We should see ``Be-Peak'' stars with 10 times overabundant Be at temperatures 100- 250 K cooler than the Li-Peak; we should see ``Be-Dip'' stars with factors of 2-3 underabundances at temperatures a little lower than this; and most strikingly, we should see no Be in our super-Li-rich dwarf.
Deliyannis Constantine P.
Jeffries Robin D.
Steinhauer Aaron
No associations
LandOfFree
Beryllium Abundances in NGC 6633 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Beryllium Abundances in NGC 6633, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Beryllium Abundances in NGC 6633 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-912481