We present the modes identified for frequencies found in spectroscopic observations of
the Doradus stars HD 189631, QW Puppis, and IR Draconis. A cross-correlation tech-
nique was used to create mean line profiles for HD 189631. Four frequencies and modes
were identified for this star: 1.6774±0.0002 d⁻¹, 1.4174±0.0002 d⁻¹, 0.0714±0.0002 d⁻¹,
and 1.8228 ± 0.0002 d⁻¹ which were identified with the modes (l,m) = (1, +1), (1, +1),
(2,−2), and (1, +1) respectively. A least-squares deconvolution method was implemented
for line profile generation in the study of QW Puppis and IR Draconis. Three frequen-
cies were identified for QW Puppis: 0.055972 ± 0.000004 d⁻¹, 0.064846 ± 0.000004, and
5.219398±0.000002 d⁻¹. These frequencies were identified with the modes (l,m) = (1,−1),
(4,−1), (4, +1). Two frequencies were identified in spectra of the rapidly rotating star IR
Draconis: 0.00515 ± 0.00003 d⁻¹ and 2.35538 ± 0.00004 d⁻¹; which were identified with
(l,m) = (1,−1), and (1, +1) modes respectively. These mode identifications will assist
in modelling the structure and interior conditions of these main sequence, non-radially
pulsating stars.
| Identifer | oai:union.ndltd.org:canterbury.ac.nz/oai:ir.canterbury.ac.nz:10092/8189 |
| Date | January 2013 |
| Creators | Davie, Matthew Wilton |
| Publisher | University of Canterbury. Physics and Astronomy |
| Source Sets | University of Canterbury |
| Language | English |
| Detected Language | English |
| Type | Electronic thesis or dissertation, Text |
| Rights | Copyright Matthew Wilton Davie, http://library.canterbury.ac.nz/thesis/etheses_copyright.shtml |
| Relation | NZCU |
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