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27 papers · 2 filters
OGLE-2013-BLG-0911Lb: A Secondary on the Brown-Dwarf Planet Boundary around an M-dwarf
Shota Miyazaki, Takahiro Sumi, David P. Bennett +92
We present the analysis of the binary-lens microlensing event OGLE-2013-BLG-0911. The best-fit solutions indicate the binary mass ratio of q~0.03 which differs from that reported i…
Midplane temperature and outer edge of the protoplanetary disk around HD 163296
Cornelis Dullemond, Andrea Isella, Sean Andrews +2
Knowledge of the midplane temperature of protoplanetary disks is one of the key ingredients in theories of dust growth and planet formation. However, direct measurement of this qua…
Radial-velocity jitter of stars as a function of observational timescale and stellar age
Stefan S. Brems, Martin Kürster, Trifon Trifonov +2
Stars show various amounts of radial velocity (RV) jitter due to varying stellar activity levels. The typical amount of RV jitter as a function of stellar age and observational tim…
Influence of sub- and super-solar metallicities on the compositions of solid planetary building blocks
Bertram Bitsch, Chiara Battistini
The composition of the protoplanetary disc is linked to the composition of the host star, where a higher overall metallicity of the host star provides more building blocks for plan…
Cloudlet capture by Transitional Disk and FU Orionis stars
Cornelis Petrus Dullemond, Michael Küffmeier, Felipe Goicovic +3
After its formation, a young star spends some time traversing the molecular cloud complex in which it was born. It is therefore not unlikely that, well after the initial cloud coll…
Global axisymmetric simulations of photoevaporation and magnetically driven protoplanetary disk winds
Peter J. Rodenkirch, Hubert Klahr, Christian Fendt +1
Photoevaporation and magnetically driven winds are two independent mechanisms to remove mass from protoplanetary disks. In addition to accretion, the effect of these two principles…