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.

Credit:

ESO

Bookmark and Share

About the Image

Id:eso0618d
Type:Observation
Release date:18 May 2006
Related releases:eso0618
Size:1100 x 1470 px

About the Object

Name:HD 69830
Type:• Milky Way : Star : Circumstellar Material : Planetary System
Distance:40 light years

Image Formats

JPEG grande
348.6 KB
Screensize JPEG
288.4 KB

Wallpapers

1024x768
191.0 KB
1280x1024
271.7 KB
1600x1200
308.1 KB
1920x1200
281.4 KB
2048x1536
400.8 KB

Colours & filters

BandTelescope
Optical ESO 3.6-metre telescope
HARPS

Also see our