Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· arXiv e-print (arXiv:0808.2480)
· References in the article
· Citations to the Article (1) (Citation History)
· Refereed Citations to the Article
· SIMBAD Objects (9)
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
Chemical Analysis of Five Red Giants in the Globular Cluster M10 (NGC 6254)
Authors:
Haynes, Sharina; Burks, Geoffrey; Johnson, Christian I.; Pilachowski, Catherine A.
Affiliation:
AA(Center of Excellence in Information Systems, Tennessee State University, Nashville, TN; ), AB(Center of Excellence in Information Systems, Tennessee State University, Nashville, TN), AC(Department of Astronomy, Indiana University, Bloomington, IN; ), AD(Department of Astronomy, Indiana University, Bloomington, IN; )
Publication:
The Publications of the Astronomical Society of the Pacific, Volume 120, Issue 872, pp. 1097-1102. (PASP Homepage)
Publication Date:
10/2008
Origin:
UCP
PASP Keywords:
Star Clusters and Associations
DOI:
10.1086/592717
Bibliographic Code:
2008PASP..120.1097H

Abstract

We have determined Al, ?, Fe-peak, and neutron capture elemental abundances for five red-giant branch (RGB) stars in the Galactic globular cluster M10. Abundances were determined using equivalent width analyses of moderate- resolution (R ˜ 15,000) spectra obtained with the Hydra multifiber positioner and bench spectrograph on the WIYN telescope. The data sample the upper RGB from the luminosity level near the horizontal branch to about 0.5 mag below the RGB tip. We find, in agreement with previous studies, that M10 is moderately metal-poor with [Fe/H] = -1.45 (σ = 0.04). All stars appear enhanced in Al with <[Al/Fe]> = +0.33 (σ = 0.19), but no stars have [Al/Fe] ≳ +0.55. We find the α elements to be enhanced by +0.20 to +0.40 dex and the Fe-peak elements to have [el/Fe] ˜ 0, which are consistent with predictions from type II SNe ejecta. Additionally, the cluster appears to be r-process rich with <[Eu/La]> = +0.41.
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)
   

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints