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.

Bildnachweis:

ESO

Über das Bild

ID:eso0618d
Typ:Beobachtung
Veröffentlichungsdatum:18. Mai 2006
Dazugehörige Veröffentlichungen:eso0618
Größe:1015 x 1444 px

Über das Objekt

Name:HD 69830
Typ:Milky Way : Star : Circumstellar Material : Planetary System
Entfernung:40 Lichtjahre
Kategorie:Exoplanets

Bildformate

Großes JPEG
349,6 KB

Farben & Filter

SpektralbereichTeleskop
OptischESO 3.6-metre telescope
HARPS