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37 papers · 2 filters
Discovery of TOI-1260d and the characterisation of the multi-planet system
Kristine W. F. Lam, J. Cabrera, M. J. Hooton +83
We report the discovery of a third planet transiting the star TOI-1260, previously known to host two transiting sub-Neptune planets with orbital periods of 3.127 and 7.493 days, re…
Formation of pebbles in (gravito-)viscous protoplanetary disks with various turbulent strengths
Eduard I. Vorobyov, Vardan G. Elbakyan, Anders Johansen +3
Aims. Dust plays a crucial role in the evolution of protoplanetary disks. We study the dynamics and growth of initially sub- dust particles in self-gravitating young protoplane…
Making hot Jupiters in stellar clusters: the importance of binary exchange
Daohai Li, Alexander J. Mustill, Melvyn B. Davies +1
It has been suggested that the occurrence rate of hot Jupiters (HJs) in open clusters might reach several per cent, significantly higher than that of the field ( a per cent).…
A strong H- opacity signal in the near-infrared emission spectrum of the ultra-hot Jupiter KELT-9b
Bob Jacobs, Jean-Michel Désert, Lorenzo Pino +11
We present the analysis of a spectroscopic secondary eclipse of the hottest transiting exoplanet detected to date, KELT-9b, obtained with the Wide Field Camera 3 aboard the Hubble…
Mean motion resonance capture in the context of type-I migration
Kaltrina Kajtazi, Antoine C. Petit, Anders Johansen
Capture into mean motion resonance (MMR) is an important dynamical mechanism as it shapes the final architecture of a planetary system. We simulate systems of two or three planets…
Examining the orbital decay targets KELT-9 b, KELT-16 b and WASP-4 b, and the transit-timing variations of HD 97658 b
J. -V. Harre, A. M. S. Smith, S. C. C. Barros +87
Tidal orbital decay is suspected to occur especially for hot Jupiters, with the only observationally confirmed case of this being WASP-12 b. By examining this effect, information o…