Skip navigation
Skip navigation

Chemical Composition of the Carbon-rich, Extremely Metal Poor Star CS 29498-043: A New Class of Extremely Metal Poor Stars with Excesses of Magnesium and Silicon

Aoki, Wako; Norris, John; Ryan, Sean G; Beers, Timothy C; Anderson, W G

Description

We analyze a high-resolution, high signal-to-noise ratio spectrum of the carbon-rich, extremely metal poor star CS 29498-043, obtained with the Subaru Telescope High Dispersion Spectrograph. We find its iron abundance is extremely low ([Fe/H] = -3.7), placing it among the few stars known with [Fe/H] ≤ -3.5, while Mg and Si are significantly overabundant ([Mg/Fe] = +1.8 and [Si/Fe] = +1.1) compared with stars of similar metallicity without carbon excess. Overabundances of N and Al were also...[Show more]

CollectionsANU Research Publications
Date published: 2002
Type: Journal article
URI: http://hdl.handle.net/1885/75135
Source: Astrophysical Journal, The
DOI: 10.1086/343761

Download

There are no files associated with this item.


Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.

Updated:  23 August 2018/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator