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4 papers · 1 filter
The Demographics of Extrasolar Planets Beyond the Snow Line with Ground-based Microlensing Surveys
B. Scott Gaudi, J. -P. Beaulieu, David P. Bennett +6
In the currently-favored paradigm of planet formation, the location of the snow line in the protoplanetary disk plays a crucial role. Determining the demographics of planets beyond…
The origin of hydrogen around HD 209458b
A. Lecavelier des Etangs, A. Vidal-Madjar, J. -M. Desert
Using numerical simulation, Holmstrom et al. (2008) proposed a plausible alternative explanation of the observed Lyman-alpha absorption that was seen during the transit of HD 20945…
HD45364, a pair of planets in a 3:2 mean motion resonance
A. C. M. Correia, S. Udry, M. Mayor +8
Precise radial-velocity measurements with the HARPS spectrograph reveal the presence of two planets orbiting the solar-type star HD45364. The companion masses are 0.187 Mjup and 0.…
Photometric and spectroscopic detection of the primary transit of the 111-day-period planet HD 80606 b
C. Moutou, G. Hebrard, F. Bouchy +19
We report the detection of the primary transit of the extra-solar planet HD 80606 b, thanks to photometric and spectroscopic observations performed at Observatoire de Haute-Provenc…