Spectroscopic mode identification of main-sequence non-radially pulsating stars

被引：1

作者：

Maisonneuve, F. ^{[1
]}

Pollard, K. R. ^{[1
]}

Cottrell, P. L. ^{[1
]}

Kilmartin, P. M. ^{[1
]}

Wright, D. J. ^{[2
]}

De Cat, P. ^{[2
]}

机构：

[1] Univ Canterbury, Dept Phys & Astron, Christchurch 1, New Zealand

[2] Observ Royal Belgique, B-1180 Brussels, Belgium

来源：

ASTROPHYSICS AND SPACE SCIENCE | 2010年 / 328卷 / 1-2期

关键词：

gamma-Doradus; beta-Cephei; HD; 40745; 61068; Spectroscopy; Non-radial pulsations; Mode identification; Variable stars;

D O I：

10.1007/s10509-009-0219-z

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We are undertaking an extensive observational campaign of a number of non-radially pulsating stars using the high-resolution HERCULES spectrograph on the 1.0-m telescope at the Mt John University Observatory. This is part of a large world-wide multi-site campaign to improve mode-identification techniques in non-radially pulsating stars, particularly for g-mode pulsators. This paper outlines our campaign and presents preliminary results for one gamma Doradus star, HD 40745, and one beta Cephei star, HD 61068. We have used a representative cross-correlation line-profile technique presented by Wright in 2008 to extract line profiles and these have then been analyzed using the FAMIAS package due to Zima published in 2006 to derive a spectroscopic mode identification.

引用

页码：105 / 108

页数：4

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