Now showing items 1-6 of 6
Three case studies in spectroscopic mode identification of non-radially pulsating stars
(University of Canterbury. Physics and Astronomy, 2011)
Gravity modes present in gamma Doradus stars probe the deep stellar interiors and are thus of particular interest in asteroseismology. Mode identification will improve the knowledge of these stars considerably and allow ...
A spectroscopic study of detached binary systems using precise radial velocities
(University of Canterbury. Physics and Astronomy, 2004)
Spectroscopic orbital elements and/or related parameters have been determined for eight binary systems, using radial-velocity measurements that have a typical precision of about 15 ms⁻¹. The orbital periods of these systems ...
Exploration of s-process elemental abundances in globular cluster stars using medium- and high-resolution spectra.
(University of Canterbury. Physics and Astronomy, 2009)
This thesis has used medium- and high-resolution spectral data to derive elemental abundances, in particular light and heavy s-process elemental abundances, for groups of giant stars in the globular clusters 47 Tuc, NGC ...
Spectroscopic mode identification in a sample of non-radially pulsating stars
(University of Canterbury. Physics and Astronomy, 2008)
This thesis has analysed spectroscopic data for three stars in detail, the β Cephei star V2052 Ophiuchus, the γ Doradus star QW Puppis and the γ Doradus candidate star HD139095. Twelve other candidate γ Doradus stars have ...
A spectroscopic and dynamical study of binary and other Cepheids
(University of Canterbury. Physics and Astronomy, 2002)
High resolution observations have been made of a number of southern Cepheids to make an observational and theoretical study of Cepheid variables using radial velocities. The stars studied were part of a long term programme ...
Spectral Matching for Elemental Abundances of Evolved Stars of Globular Clusters
(University of Canterbury. Physics and Astronomy, 2013)
In order to understand the origin of globular clusters, large samples of their stars need to be observed and analyzed for their chemical composition. This is especially true for the complex, multimetallic cluster ω Centauri, ...