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Radial Velocity follow-up of SWASP-North candidates with SOPHIE (1.93-m OHP) G. Hébrard & F. Bouchy (IAP/OHP)

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Presentation on theme: "Radial Velocity follow-up of SWASP-North candidates with SOPHIE (1.93-m OHP) G. Hébrard & F. Bouchy (IAP/OHP)"— Presentation transcript:

1 Radial Velocity follow-up of SWASP-North candidates with SOPHIE (1.93-m OHP) G. Hébrard & F. Bouchy (IAP/OHP)

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3 July 2006: telescope integration Aug 2006: first light

4 - Fiber fed cross-dispersed echelle spectrograph - Res = 40’000 (H.E.) = 75’000 (H.R.) - 2k x 4k EEV 15  m pixel CCD nm (39 orders) - two pairs of 3’’ optical fibers - gain of 10 in efficiency / ELODIE - present precision of 4-5 m/s in H.R. Perruchot. Kohler, Bouchy, et al Bouchy, Hébrard, Udry, et al. 2010

5 mv  RV [m/s] in 1 hour (H.E.) vsini < 2 km/svsini ~ 5 km/svsini ~ 10 km/s Photon noise uncertainties m/s of systematic in H.E. mode

6 1 - CCD Charge Transfer Inefficiency function of flux level at low S/N (Bouchy et al. 2008) Correction of systematic effects

7 2 - Seeing effect due to imperfect fiber scrambling effect (Boisse et al. 2010) Correction of systematic effects

8 3 - Moon light contamination Correction of systematic effects

9 Blended Eclipsing Binaries (inside seeing) Deep inspection of CCFs Bisector Span Amplitude change With CCF template

10 Reprocessing of all SOPHIE data in our IAP database: - moon light correction - computation of CCFs with F0, G2 and K5 masks - Bisector span computation - Complete listing of all observations

11 SOPHIE ++ ADC telescope New N2 Dewar filling system + thermal isolation improvement 2 2 New Fiber scambling New Calibration Unit

12 Expected end of optimisation phase : mid 2011 Expected accuracy ~ 1-2 m/s Developpement of AstrAcad : an automatic 50-cm telescope for photometric follow-up (2012)

13 Goals : establish the true nature of transiting events characterize the true mass of secure planets determine central star parameters Main Actors : G. Hébrard, F. Bouchy (IAP/OHP) C. Moutou (LAM) / Udry (Geneva) B. Loeillet (IAP/LAM ) I. Boisse (IAP ) A.Santerne (LAM ) Cameron, Pollacco, Skillen, Barros, Faedi (WASP) SWASP-North follow-up with SOPHIE

14 WASP days/ 0.5 M Jup West et al. (2009) WASP day / 1.4 M Jup Hebb et al. (2009) WASP days / 7.3 M Jup Joshi et al. (2009) WASP day / 1.8 M Jup Pollacco et al. (2008) WASP days / 0.9 M Jup Cameron et al. (2007) WASP days / 0.9 M Jup Cameron et al. (2007) WASP days / 0.3 M Jup Bouchy et al. (2010) WASP days / 0.5 M Jup Skillen et al. (2009) Published SuperWASP planets with SOPHIE RVs WASP days / 3.0 M Jup Christian et al. (2009)

15 New SuperWASP planets with SOPHIE RVs WASP days / 1.7 M Jup Simpson et al.

16 New SuperWASP planets with SOPHIE RVs WASP days / 2.7 M Jup Barros et al.

17 New SuperWASP planets with SOPHIE RVs WASP days / 0.3 M Jup Faedi et al.

18 New SuperWASP planets with SOPHIE RVs WASP days / 0.6 M Jup West et al. Another planet? CaII emission: active star

19 New SuperWASP planets with SOPHIE RVs? 2.1 days / 0.7 M Jup

20 SemesternightsPIPlanets detected 2006B 4nCameronWASP-1 / WASP A8nPollaccoWASP B5nCameronWASP-10 / WASP-11 / WASP-12 WASP-13 / WASP A4nSkillenWASP B4.5nPollacco 2009A3nCameronWASP-27 (published as HAT-P-14) 2009B 3n Barros 2010A 8n FaediWASP-37 / WASP-38 / WASP-39 WASP B 5.7n Faedi (Opticon) 4n Hébrard

21 SemesternightsPIsystems observed 2008B4nSimpson (RM)WASP-3 / WASP-12 / WASP-14 bad weather: WASP-10 / WASP A3nSimpson (RM)WASP-14 bad weather: WASP-13 / J B 4n Simpson (RM)WASP-21 / WASP-1 / WASP-10 canceled: WASP-11 (  2010B) 2010A 3n Simpson (RM) WASP-27 / J bad weather: WASP-13

22 WASP-3 SOPHIE WASP-3b = 15° (+10°/-9°) Simpson et al. (2010) Miller et al. (submitted)

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26 WASP-27/ HAT-P-14

27 ``French’’ team involved : G. Hébrard, F. Bouchy (OHP) C. Moutou, A. Santerne (LAM) - Close to the instrument - In charge of the observations - In charge of the upgrade & optimization of instrument - In charge of the Data Reduction Software - Close interaction with observers in case of service mode

28 Means to optimize SWASP-North follow-up - Increase Nb nights (Opticon + French applications) ( = 9.7 nights in 2010B) - Large flexibilities with other Large programs CoRoT (PI: C. Moutou) SOPHIE consortium (PI: F. Bouchy) 9.7 SWASP nights spread over all the semester - One identified RV responsible in close contact with one identified SWASP responsible for each semester - Better coordination with other facilities (FIES and Coralie)

29 Proposed Schedule for 2010B Oct [5 nights] 4 nights SWASP Nov [5 nights] 3.5 nights SWASP nights spread over the semester Observers : G. Hébrard, F. Bouchy, A. Santerne, & C. Moutou and some others SOPHIE consortium observers (service mode).


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