723 citations · 1.6k across the 36 of their papers we have counts for
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New Parameters and Transit Timing Studies for OGLE2-TR-L9 b
M. Lendl, C. Afonso, J. Koppenhoefer +4
Context: Repeated observations of exoplanet transits allow us to refine the planetary parameters and probe them for any time dependent variations. In particular deviations of the p…
VLT multi-epoch radial velocity survey toward NGC 6253. Analysis of three transiting planetary candidates
M. Montalto, S. Villanova, J. Koppenhoefer
We measured the radial velocity of 139 stars in the region of NGC 6253, discussing cluster's membership and binarity in this sample, complementing our analysis with photometric, pr…
Bias-Free Shear Estimation using Artificial Neural Networks
D. Gruen, S. Seitz, J. Koppenhoefer +1
Bias due to imperfect shear calibration is the biggest obstacle when constraints on cosmological parameters are to be extracted from large area weak lensing surveys such as Pan-STA…