8 papers
Constraints on a second planet in the WASP-3 system
G. Maciejewski, A. Niedzielski, A. Wolszczan +30
There have been previous hints that the transiting planet WASP-3 b is accompanied by a second planet in a nearby orbit, based on small deviations from strict periodicity of the obs…
Constraining the interior of extrasolar giant planets with the tidal Love number k_2 using the example of HAT-P-13b
U. Kramm, N. Nettelmann, J. J. Fortney +2
Transit and radial velocity observations continuously discover an increasing number of exoplanets. However, when it comes to the composition of the observed planets the data are co…
Young Exoplanet Transit Initiative (YETI)
R. Neuhäuser, R. Errmann, A. Berndt +80
We present the Young Exoplanet Transit Initiative (YETI), in which we use several 0.2 to 2.6m telescopes around the world to monitor continuously young (< 100 Myr), nearby (< 1 kpc…
On the degeneracy of the tidal Love number k2 in multi-layer planetary models: application to Saturn and GJ436b
U. Kramm, N. Nettelmann, R. Redmer +1
In order to accurately model giant planets, a whole set of observational constraints is needed. As the conventional constraints for extrasolar planets like mass, radius, and temper…
A search for transit timing variation
G. Maciejewski, R. Neuhaeuser, St. Raetz +3
Photometric follow-ups of transiting exoplanets (TEPs) may lead to discoveries of additional, less massive bodies in extrasolar systems. This is possible by detecting and then anal…
Towards the Rosetta Stone of planet formation
G. Maciejewski, R. Neuhaeuser, R. Errmann +18
Transiting exoplanets (TEPs) observed just about 10 Myrs after formation of their host systems may serve as the Rosetta Stone for planet formation theories. They would give strong…