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Pushing the precision limit of ground-based eclipse photometry
M. Gillon, D. R. Anderson, B. -O. Demory +4
Until recently, it was considered by many that ground-based photometry could not reach the high cadence sub-mmag regime because of the presence of the atmosphere. Indeed, high freq…
The CORALIE survey for southern extra-solar planets XV. Discovery of two eccentric planets orbiting HD4113 and HD156846
O. Tamuz, D. Ségransan, S. Udry +10
We report the detection of two very eccentric planets orbiting HD4113 and HD156846 with the CORALIE Echelle spectrograph mounted on the 1.2-m Euler Swiss telescope at La Silla. The…
Accurate Spitzer infrared radius measurement for the hot Neptune GJ 436b
M. Gillon, B. -O. Demory, T. Barman +6
We present Spitzer Space Telescope infrared photometry of a primary transit of the hot Neptune GJ 436b. The observations were obtained using the 8 microns band of the InfraRed Arra…
Characterization of the hot Neptune GJ 436b with Spitzer and ground-based observations
B. -O. Demory, M. Gillon, T. Barman +11
We present Spitzer Space Telescope infrared photometry of a secondary eclipse of the hot Neptune GJ436b. The observations were obtained using the 8-micron band of the InfraRed Arra…
Detection of transits of the nearby hot Neptune GJ 436 b
M. Gillon, F. Pont, B. -O. Demory +7
This Letter reports on the photometric detection of transits of the Neptune-mass planet orbiting the nearby M-dwarf star GJ 436. It is by far the closest, smallest and least massiv…