CHEOPS and NGTS

in the Gaia era

Didier Queloz et al.

Didier.queloz@unige.ch

Bulk structure and composition

2

Planet atmosphere

3

Magnitude problem

Diversity of the bulk density

5

Kepler statistics

Howard et al. 2010

Belfast, DLR Berlin, Geneva, Leicester, Warwick, U. Catolica

www.ngtransits.org

NGTS location: Paranal (ESO)

Performance design tested in 2010

First Unit test at Geneva

3 mmag

13

http://cheops.unibe.ch/

Selected ESA mission for launch in 2017

Gaia connectionNGTS CHEOPS

Sky access, duration

“whole sky”, 3 months series Pointed day to few weeks20% time on open call

Accuracy 1 mmag 10-100 ppm

Target mag 9 < I < 15 6 < V < 16

Operation 2014 - 2018 2018-2021

Data access Public 1 year after observation TBD by ESA

GAIA feed-back

K dwarfs id, stellar size, false positive Stellar size, transit