1. Some preliminary results from the exochannel
From the run: IRa 01
Data: R. Alonso, R. Cautain, P-Y Chabaud, C. Chardes, L. Jorda, C. Surace, …
Follow-up: C. Moutou, M. Deleuil, M. Barbieri, H. Deeg, A. Hatzes, H. Rauer, A. Erikson, S. Aigrain, A. Shporer, D. Rouan, …
CS /04/07

2. Present status of the alarm mode
File transfer between LESIA, IAS and LAM are now working
N0 -> N1 pipeline ready , concatenation of data ready
…. but not in the production mode
N1 data should be soon available
Data presently available at LAM:
Unconcatenated N0 products
One week samples of LCs (build from N0 products)
A few light curves on the complete run duration
The « alarm » pipeline is not in the production mode
 Tests have been made using N0 data (detection and follow up)
CS /04/07

3. From N0 data … … to preliminary LCs
What we have made:
Data were put in the appropriate format
Various pieces concanenated in LCs
Impacts of « cosmic rays » removed
Detrending from low frequency variations
Removal of systematics using PCA
(only for some thousands of windows)
Only hand made, not a pipeline !
CS /04/07

4. A first and quick look
CS /04/07

5. Eclipsing binaries
mv = 12.76
11%
13%
mv = 13.42 6%
CS /04/07

6. Variables stars
0.4%
0.2%
mv = 13.02
mv = 12.43
0.5%
CS /04/07

7. … also some problems
CS /04/07

8. Planet candidates
A number of planet candidates identified in a few 1000 LCs.
Two good candidates with series of deep transits (few %):
One has a period of 5.8 days
The other has a period of 1.5 days
Use of archived data: EXODAT (1 candidate observed by BEST)
 Follow Up triggered for the two candidates:
Photometry : IAC80cm, Wise 1m, BEST, CFHT/Megacam
Spectroscopy : Tautenburg, SOPHIE
Archived data : BEST (1 candidate), EXODAT
CS /04/07

9. First candidate: COROT_001
CS /04/07

10. COROT_001: Detrended LC
CS /04/07

11. COROT_001: Folded LC
CS /04/07

12. COROT_001: Ellipsoidal variation
CS /04/07

13. COROT_001: a secondary transit
CS /04/07

14. COROT_001: Results from the F-Up
Radial velocity variations obtained from Tautenburg/1m
Transit on the sentral star confirmed with IAC/80cm
CS /04/07

15. COROT_001 is an eclipsing binary - the primary is a 0
COROT_001 is an eclipsing binary - the primary is a 0.9 M G5V star - the companion is a M star of M
CS /04/07

16. COROT_002: Light-curve
CS /04/07

17. COROT_002: Detrended LC
CS /04/07

18. COROT_002: Folded LC
CS /04/07

19. COROT_002: no elipsoidal variation
CS /04/07

20. COROT_002: no secondary transit
No feature down to the 3.e-5 level
CS /04/07

21. COROT_002: follow up
SOPHIE: radial velocity variations compatible with the LC ( m/s)
Bisector analysis: not a triple system
Analysis of SOPHIE spectra: 6000K dwarf star (to be confirmed)
Star mass ~ 1.17 (0.33) M
Planet mass ~ 1.32 (0.25) MJup
CS /04/07

22. COROT_002 host a planet: - the planet is a very hot (1
COROT_002 host a planet: - the planet is a very hot (1.5days) giant one: RP ~ (+ 0.3,-0.2) RJup MP ~ 1.32 (0.25) Mjup - the star is a dwarf (~ 6000K) with: M ~ (0.33) M and R ~ 1.2 (-0.2,+0.1) R (parameters to be improved with higher resolution spectra)
CS /04/07

23. What we learned also … Confrontation space/ground
Transit found deeper from the ground than from space …!
Scattered light from the Earth can explain the difference
(correction with an approximate value of 640e-/px/32sec)
Background correction by hand !
We have to improve our organisation for the F-Up
CS /04/07