1. Exoplanets Complementary Observations Working Group Report …

2.  Preparatory Observations Program –Status  Radial velocity : Strategy for follow-up observations  Photometric Survey : the BEST telescope  Stellar radius estimation : a critical problem A lot of work has been done.. A lot has still to be done HARPS, CORALIE & SOPHIE: the guaranteed time will not be sufficient Proposals to be submitted in the open time 1 or 2 field(s) can be monitored per season Expected accuracy: 20%??? COROT Asteroseismology results are urgently required !!

3.  Complementary surveys :  Background contamination in the exofields :  Strategy for the follow-up observations : should be set up during CW6 Strongly dependent on the direction:  anticenter: 2 stars included in the PSF  center : up to 15 stars included in the PSF, depending the stellar density.. Jean Surdej will coordinate a XMM proposal – mid 2004

4.  Validate the fields list with priority levels   Would you like to keep the possibility to re-observe the same field ? Drift of the orbit or no drift? Questions to the ExoSide: Yes !! Yes, after the nominal lifetime of the mission

5. List of Primary targets –ANTICENTER E. Michel COROT Week 5, Berlin, 10-12 dec. 03 Object M& evolution stage* mV distan ce to the field centre exoplanet criteria stellar density/deg2 for R up to 15 homogeneity of the stellar distribution Obs. StatusPriority HD49933 + HD49434 ~1.2-1.3Mo ~ early MS Gam Dor 5.8 5.7 < 2 o 2200-2770 */deg2 homogen. Spring 03 Dec03/Jan0 4 1 HD 52265 1.13M o + planet 2100 */deg 2 north 2600 */deg 2 south Dec03/Jan0 4 1 HD43587 ~1Mo, MS5.7 9.6 o 1260 */deg 2 south 2420 */deg2 north Dec03/Jan0 4 2 HD45067 ~1.2Mo, end MS/off MS 5.9 6.2 o 1950 */deg 2 south 1600 */deg 2 north Dec03/Jan0 4 2 HD46558 ~1.5Mo, early MS6.9 6 o 1500 */deg2 south 1400 */deg2 north proposql dependent 3 HD43318 ~1.3-1.4Mo end MS/off MS 5.6 8.6 o ~1300 */deg2 homogen. proposal dependent … 3  

6. List of Primary targets – CENTER E. Michel COROT Week 5, Berlin, Dec. 03 Object M& evolution status mV distance to field centre exoplanet criteria stellar density/deg2 for R up to 15 homogeneity of the stellar distribution Obs status HD177552 ~1.4Mo, MS6.5 ~4.1 o 3345 */deg 2 south 6620 */deg 2 north June 03 ~60% TBC 1 HD171834 ~1.3-1.4Mo, mid MS 5.4 7.5 o 3300 */deg 2 north 4600 */deg 2 south June 03 ~10% TBC 1 HD170580 HD180642 Beta Cephei 2400 */deg 2 south 4000 */deg 2 north TBO Jun04 1 HD181555 d Scuti MS(*1), Vsini~170km/s 8 8o 8o 4500 */deg 2 south 6200 */deg 2 north TBO Jun04 2 HD171234 d Scuti mid-MS, Vsini~160km/s 7.9 4-5 o 450 */deg 2 south 2100 */deg 2 north South excluded TBO Jun04 3 HD175726 ~1Mo ~ early MS6.7 ~5 o <1700/deg2 inhomog. South excluded June 03 ~10% TBC 3  