Exoplanet Working Group

1
Exoplanet Working Group

• CoRoT Week 9
• ESTEC Dec 5-9 2005

2
Program of the EWG session

• Morning
• - Points to be discussed
• - Blind Test 2 present status (C. Moutou) ? (P.
  Barge) - Light-curve analysis within Blind test1
  (M. Kodachenko)- Exoplanet detection threshold
  (F. Pont)- Periodic dip in the LCs planet or
  stellar spot? (J. Cabrera)
• Afternoon (splinter session)
• Photometric templates - Overview of the
  problem (P. Guterman) - Construction and
  optimization (A. Llebaria) - Assignation
  procedure (F. Karioty) Oversampling -
  General aspects and the exo side (P. Barge) -
  Proposed detection procedure (C. Quentin) -
  Requirements for the AP (W. Weiss) Europlanet
  (H. Lammer)
• Expected planetary populations (G.
  Wuchterl)

3
Points to be discussed during the exo-sessions

• ? Proposed organization for the detection
  activities
• ? A proposal to tune the scientific objectives
  with a statistics of the planets at 10-15 days
  period (changing the first long run into a series
  of short run of 40-50 days)
• ? Why and when information on transit candidates,
  from exowarning, will be given to the Follow-up
  group
• ? Publication rules for CoRoT/Follow-up papers

4
Reminder of Blind Test 1

• Detection in synthetic light-curves simulated in
  realistic conditions
• Five different teams were using various methods
  for detrending and detection
• Joining the results we learned a lot
• False alarms never appear on the same LC
• Stellar activity doesnt seem to limit detection
• Eclipsing binaries are the main source of
  ambiguity
• and have more secure detection capacity

5
Blind Test 2

• We want to play in color using the three colored
  channels of CoRoT
• The exercise focus on discrimination rather than
  detection
• A bit late not an easy task to simulate things
  in a not too unrealistic way !
• An opportunity to continue working in common and
  to learn !

6
After BT2

• A proposal
• To continue working in common with true CoRoT
  data
• To federate the effort for the analysis of the
  Light-curves