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:
Radial Velocity follow-up of SWASP-North candidates with SOPHIE (1.93-m OHP) G. Hébrard & F. Bouchy (IAP/OHP)
July 2006: telescope integration Aug 2006: first light
- 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
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
1 - CCD Charge Transfer Inefficiency function of flux level at low S/N (Bouchy et al. 2008) Correction of systematic effects
2 - Seeing effect due to imperfect fiber scrambling effect (Boisse et al. 2010) Correction of systematic effects
3 - Moon light contamination Correction of systematic effects
Blended Eclipsing Binaries (inside seeing) Deep inspection of CCFs Bisector Span Amplitude change With CCF template
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
SOPHIE ++ ADC telescope New N2 Dewar filling system + thermal isolation improvement 2 2 New Fiber scambling New Calibration Unit
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)
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
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)
New SuperWASP planets with SOPHIE RVs WASP days / 1.7 M Jup Simpson et al.
New SuperWASP planets with SOPHIE RVs WASP days / 2.7 M Jup Barros et al.
New SuperWASP planets with SOPHIE RVs WASP days / 0.3 M Jup Faedi et al.
New SuperWASP planets with SOPHIE RVs WASP days / 0.6 M Jup West et al. Another planet? CaII emission: active star
New SuperWASP planets with SOPHIE RVs? 2.1 days / 0.7 M Jup
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
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
WASP-3 SOPHIE WASP-3b = 15° (+10°/-9°) Simpson et al. (2010) Miller et al. (submitted)
``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
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)
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).