Exoplanets

Complementary

Observations

Working Group

Report …

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 !!

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

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

List of Primary targets –ANTICENTER

E. Michel COROT Week 5, Berlin, 10-12 dec. 03

  ObjectM& evolution stage*

mV

distance to  the  field centre

exoplanet criteria stellar density/deg2 for R up to 15 homogeneity of the stellar distribution

Obs. Status Priority

HD49933 + HD49434

~1.2-1.3Mo ~ early MS Gam Dor

5.8 5.7

 < 2 o2200-2770 */deg2 homogen.

Spring 03 Dec03/Jan04

1

HD 522651.13Mo + planet

2100 */deg2 north2600 */deg2 south

Dec03/Jan04

1

HD43587 ~1Mo, MS 5.7  9.6o1260 */deg2 south2420 */deg2 north

Dec03/Jan04

2

HD45067 ~1.2Mo, end MS/off MS

5.9  6.2o1950 */deg2 south 1600 */deg2 north

Dec03/Jan04

2

HD46558 ~1.5Mo,  early MS 6.9  6o1500 */deg2 south1400 */deg2 north

proposql dependent

3

HD43318 ~1.3-1.4Mo end MS/off MS

5.6  8.6o~1300 */deg2 homogen.

proposal dependent…

3

List of Primary targets – CENTER

E. Michel COROT Week 5, Berlin, Dec. 03

  Object

M& evolution status

mVdistance to field centre

exoplanet criteria stellar density/deg2 for R up to 15 homogeneity of the stellar distribution

Obs status

HD177552 ~1.4Mo, MS 6.5  ~4.1o

3345 */deg2 south6620 */deg2 north

June 03~60% TBC 1

HD171834 ~1.3-1.4Mo,  mid MS

5.4  7.5o3300 */deg2 north4600 */deg2 south

June 03~10% TBC 1

 HD170580 HD180642 Beta Cephei

2400 */deg2 south

4000 */deg2 north TBO Jun04 1

HD181555 d Scuti MS(*1), Vsini~170km/s

8  8o4500 */deg2 south6200 */deg2 north

TBO Jun04 2

HD171234  d Scuti mid-MS, Vsini~160km/s

 7.9   4-5o

450 */deg2 south2100 */deg2 northSouth excluded

TBO Jun04 3

HD175726 ~1Mo ~ early MS 6.7  ~5o

<1700/deg2 inhomog. South excluded

June 03~10% TBC 3