P-mode observations on Alpha Cen A

Details P-mode observations on Alpha Cen A P-mode observations on Alpha Cen A

2001-07-05

arxiv.org/abs/astro-ph/0107099v1

Astronomy and Astrophysics

Astrophysics

4 pages, 4 figures, A&A Letter accepted

Scientific paper

10.1051/0004-6361:20010792

We have made a clear detection of p-mode oscillations in the nearest solar-like G2V star $\alpha$ 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 $\mu$Hz and the amplitude of about 35 cm s$^{-1}$ of these modes are in agreement with theoretical expectations.

Affiliated with

Also associated with

No associations

Rating

P-mode observations on Alpha Cen A does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with P-mode observations on Alpha Cen A, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and P-mode observations on Alpha Cen A will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-652269