Velocity variation of mu Arae observed by HARPS

Illustration of the high-quality radial velocity measurements obtained with HARPS. Here also, the solid line shows the best fit to the measurements, assuming the existence of two planets. The data were obtained over a time span of 80 days and the first points shown are the data from the 8 nights in June. Note that the full span of the vertical axis is only 40 m/s! Error bars indicate the accuracy of the measurements. The lower part of the diagram displays the deviation of the measurements from the best fit.



À propos de l'image

Date de publication:25 août 2004
Communiqués de presse en rapport:eso0427
Taille:800 x 794 px

À propos de l'objet

Nom:mu Arae
Type:Milky Way : Star : Spectral Type : G
Milky Way : Star : Circumstellar Material : Planetary System
Distance:50 années lumière

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