Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20917221r&link_type=abstract
2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #172.21; Bulletin of the American Astronomical Society,
Astronomy and Astrophysics
Astronomy
Scientific paper
Theories of thick disk formation can be differentiated by observable abundance ratios. Old metal-poor stars in a thick disk made during the accretion of satellite galaxies may show abundance ratio variations as a function of galactic radius. If the thick disk formed during a slow dissipational collapse, abundance ratio gradients may exist in the metal-poor stars in the vertical direction. Conversely, a thick disk made in a burst of high star formation should have a more uniform abundance ratio distribution, but have very few metal-poor stars. We have begun observations of a sample of candidate metal-poor thick disk stars selected from the RAVE survey. These stars cover a range of positions within the Galaxy in order to test whether the distribution of their abundance ratios are consistent with any of the present theories of thick disk formation.
Funding for this research, provided by the National Science Foundation through AST-0508996 as well as the Keck and Moore Foundations, is gratefully acknowledged.
Fulbright Jon
RAVE Collaboration
Ruchti Gregory R.
Wyse Rosemary F.
No associations
LandOfFree
Elemental Abundances of Metal-Poor Thick Disk Stars from the RAVE Survey 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 Elemental Abundances of Metal-Poor Thick Disk Stars from the RAVE Survey, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Elemental Abundances of Metal-Poor Thick Disk Stars from the RAVE Survey will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1162900