Stellar Seismology in Alpha Eridani
Abstract
Variations in the line profiles, of some stars Be, has been detected in spectra of high resolution and high relationship sinal/noise. Since 1990 the star Be Eridani has been monitored by spectroscicopy in the National Laboratory of Astrophysics. Through the analysis of those variations we can evidence some periods in the lines profiles of HeIl6678=C5. Those results have been interpreted in terms of non radial pulsations . In an observacional sampling , of four successive nights of observations, a predominant period of 1.35 days in that sample, suggests to be a non radial pulsation of mode of gravity (g), with l =3D 2 or 3 based on the phase diagram.
- Publication:
-
IX Latin American Regional IAU Meeting, "Focal Points in Latin American Astronomy"
- Pub Date:
- November 1998
- Bibcode:
- 1998larm.confE.192L