P-mode observations on Alpha Cen A
天体物理学
2016-08-30 v1
摘要
We have made a clear detection of p-mode oscillations in the nearest solar-like G2V star Cen A with the CORALIE spectrograph on the 1.2-m Swiss telescope at the ESO La Silla Observatory. We report the 5 nights of observation on this star in May 2001 during which 1260 high precision radial velocity measurements were obtained. The power spectrum clearly shows several identifiable peaks between 1.7 and 3 mHz. The average large splitting of 105.7 Hz and the amplitude of about 35 cm s of these modes are in agreement with theoretical expectations.
引用
@article{arxiv.astro-ph/0107099,
title = {P-mode observations on Alpha Cen A},
author = {Francois Bouchy and Fabien Carrier},
journal= {arXiv preprint arXiv:astro-ph/0107099},
year = {2016}
}
备注
4 pages, 4 figures, A&A Letter accepted