Image selection done ...
Finally posting "today's post" today! :-)Today we had a student talk about Externally Dispersed Interferometers (EDI). The students are supposed to pick a topic and speak about it.
People put a Michaelson interferometer before the spectrograph and can have a great resolution in doppler variation of lines. This way measuring radial velocities get really better. Nice test made with 51 Pegasus, the historical first planet from Mayor and Queloz (1995). A precision of 11.5 m/s with a test instrument while the original measurements from ELODIE had 30 m/s.
When I worked with CORAVEL data in my master thesis we had 300 m/s hehehehehe I love technology!
Also finished the selection of the images that can be used as flats at the LAICA run. Tomorrow I'll see if they really work ...
posted by Cris Da Rocha @ 9:13 PM
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