水蛇座β星中的类太阳振荡:短时标高振幅振荡事件的证据
天体物理学
2007-05-23 v1
摘要
利用UCLES和CORALIE对G2亚巨星水蛇座β星进行的视向速度测量显示,在1.0 mHz处存在明显的功率过剩。在UCLES数据中,我们发现了短时标、高振幅振荡事件的证据。如果这种“星震”被确认为亚巨星的一个特征,那么它将使得精确测量模式频率和进行星震学分析变得更加困难。
引用
@article{arxiv.astro-ph/0202471,
title = {Solar-Like Oscillations in beta Hydri: Evidence for Short-Lived High-Amplitude Oscillations},
author = {T. R. Bedding and H. Kjeldsen and I. K. Baldry and F. Bouchy and R. P. Butler and F. Carrier and F. Kienzle and G. W. Marcy and S. J. O'Toole and C. G. Tinney},
journal= {arXiv preprint arXiv:astro-ph/0202471},
year = {2007}
}
备注
4 pages, latex, eps figures, To appear in Proc. IAU Colloq. 185: "Radial and Nonradial Pulsations as Probes of Stellar Physics", edited by C. Aerts, T.R. Bedding and J. Christensen-Dalsgaard, ASP Conf. Series, Vol. 259, p. 464