Other
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...207.7703s&link_type=abstract
American Astronomical Society Meeting 207, #77.03; Bulletin of the American Astronomical Society, Vol. 37, p.1292
Other
Scientific paper
We present a detailed chemical abundance analysis of the parent star of the transiting extrasolar planet TrES-1. Based on high-resolution Keck/HIRES and HET/HRS spectra, we have determined abundances relative to the Sun for 16 elements (Na, Mg, Al, Si, Ca, Sc, Ti, V, Cr, Mn, Co, Ni, Cu, Zn, Y, and Ba). The resulting average abundance of <[X/H]> = -0.02± 0.06 is in good agreement with initial estimates of solar metallicity based on iron. We compare the elemental abundances of TrES-1 with those of the sample of stars with planets, searching for possible chemical abundance anomalies. TrES-1 appears not to be chemically peculiar in any measurable way. We investigate possible signs of selective accretion of refractory elements in TrES-1 and other stars with planets, and find no statistically significant trends of metallicity [X/H] with condensation temperature Tc. We use published abundances and kinematic information for the sample of planet-hosting stars (including TrES-1) and several statistical indicators to provide an updated classification in terms of their likelihood to belong to either the thin disk or the thick disk of the Milky Way Galaxy. TrES-1 is found to be a very likely member of the thin disk population. By comparing α -element abundances of planet hosts and a large control sample of field stars, we also find that metal-rich ([Fe/H]> 0.0) stars with planets appear to be systematically underabundant in [α /Fe] by ˜ 0.1 dex with respect to comparison field stars. The reason for this signature is unclear, but systematic differences in the analysis procedures adopted by different groups cannot be ruled out.
Carney Bruce W.
Laird John B.
Latham Dave W.
Sozzetti Alessandro
Torres Gabino
No associations
LandOfFree
Chemical Composition of the Planet-Harboring Star TrES-1 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 Chemical Composition of the Planet-Harboring Star TrES-1, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chemical Composition of the Planet-Harboring Star TrES-1 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1281831