Phase folded measurements of HD 69830

The HARPS radial velocity measurements of HD 69830 are folded with the orbital periods of the three discovered planets: 8.67, 31.6 and 197 days, respectively. In each case, the contribution of the two other planets has been subtracted. The solid line shows the best fit to the measurements, corresponding to minimum masses of 10.2, 11.8 and 18.1 Earth masses. Note that the full span of the vertical axis is only 13 m/s! Error bars indicate the accuracy of the measurements. The integration time was 4 minutes on average for the first 18 measurements (shown as open dots), and was increased to 15 minutes for the remaining points (full dots). The latter measurements are therefore of much higher quality.

Crédit:

ESO

À propos de l'image

Identification:eso0618d
Type:Observation
Date de publication:18 mai 2006
Communiqués de presse en rapport:eso0618
Taille:1015 x 1444 px

À propos de l'objet

Nom:HD 69830
Type:Milky Way : Star : Circumstellar Material : Planetary System
Distance:40 années lumière
Catégorie:Exoplanets

Formats des images

Grand JPEG
349,6 Kio
JPEG taille écran
288,8 Kio

Couleurs & filtres

DomaineTélescope
VisibleESO 3.6-metre telescope
HARPS