Results 91 to 100 of about 3,349 (181)

Dynamics of Circumstellar Disks III: The case of GG Tau A

, 2016
(abridged) We present 2-dimensional hydrodynamic simulations using the Smoothed Particle Hydrodynamic (SPH) code, VINE, to model a self-gravitating binary system similar to the GG Tau A system.
Marzari, F., Nelson, Andrew F.
core   +1 more source

Possible Dynamical Pathways to the Misalignment of the VHS 1256–1257 System

The Astrophysical Journal
Circumbinary planets (CBPs) provide a unique window into planet formation and dynamical evolution in complex gravitational environments. Their orbits are shaped not only by the protoplanetary disk but also by the perturbations from two stellar hosts ...
Liz Holzknecht, Smadar Naoz, Cheyanne Shariat   +2 more
doaj   +1 more source

Planetary Rhythms: Synchronous Circulation on Variably Irradiated Asynchronous Planets

The Astrophysical Journal
Tidal locking of planets to their host stars results in an atmospheric circulation with a hotspot fixed to the frame of reference of the planet. On the other hand, asynchronously rotating planets feature moving hotspots either lagging or leading the ...
Deepayan Banik
doaj   +1 more source

Young Binary Stars and Associated Disks [PDF]

, 1999
The typical product of the star formation process is a binary star. Binaries have provided the first dynamical measures of the masses of pre-main-sequence (PMS) stars, providing support for the calibrations of PMS evolutionary tracks.
Ghez, Andrea M., Jensen, Eric L. N., Mathieu, Robert D., Simon, Michal   +3 more
core   +2 more sources

Detection and Characterization of Planets in Binary and Multiple Systems

, 2009
Moderately close binaries are a special class of targets for planet searches. From a theoretical standpoint, their hospitality to giant planets is uncertain and debated.
A. Eggenberger, Bonavita, Boss, Bower, Caton, Chauvin, Chauvin, Correia, Correia, Deeg, Deeg, Deeg, Delplancke, Desidera, Doyle, Duquennoy, Dvorak, Eggenberger, Eggenberger, Eggenberger, Eggenberger, Eggenberger, Fabrycky, Ford, Ford, Griffin, Haghighipour, Halbwachs, Han, Hatzes, Holman, Innanen, Jang-Condell, Jones, Kalas, Konacki, Konacki, Lagrange, Lane, Lee, Lee, Luhman, Marcy, Marois, Mayer, Mazeh, Moutou, Mugrauer, Muterspaugh, Nelson, Neuhäuser, Ofir, Patience, Perrier, Pfahl, Pfahl, Pierens, Pierens, Portegies Zwart, Queloz, Quintana, Quintana, Raghavan, Roell, Scholl, Sigurdsson, Söderhjelm, Takeda, Takeda, Tamuz, Thorsett, Thébault, Thébault, Toyota, Udry, Wu, Wu, Zucker, Zucker, Zucker, Zucker, Zucker   +81 more
core   +1 more source

Inclination instability of circumbinary planets

Monthly Notices of the Royal Astronomical Society
ABSTRACT We analyse a tilt instability of the orbit of an outer planet in a two-planet circumbinary system that we recently reported. The binary is on an eccentric orbit and the inner circumbinary planet is on a circular polar orbit that causes the binary to undergo apsidal precession.
Stephen H Lubow, Anna C Childs, Rebecca G Martin   +2 more
openaire   +2 more sources

Sites of Planet Formation in Binary Systems. I. Evidence for Disk−Orbit Alignment in the Close Binary FO Tau

The Astronomical Journal
Close binary systems present challenges to planet formation. As binary separations decrease, so do the occurrence rates of protoplanetary disks in young systems and planets in mature systems.
Benjamin M. Tofflemire, Lisa Prato, Adam L. Kraus, Dominique Segura-Cox, G. H. Schaefer, Rachel Akeson, Sean Andrews, Eric L. N. Jensen, Christopher M. Johns-Krull, J. J. Zanazzi, M. Simon   +10 more
doaj   +1 more source

On the frequency of planetary systems around G-dwarfs

, 2013
We determine the fraction of G-dwarf stars that could host stable planetary systems based on the observed properties of binaries in the Galactic field, and in various postulated primordial binary populations, which assume that the primordial binary ...
Parker, Richard J., Quanz, Sascha P.
core   +1 more source

Detection of a planetary system orbiting the eclipsing polar HU Aqr

, 2011
Using the precise times of mid-egress of the eclipsing polar HU Aqr, we discovered that this polar is orbited by two or more giant planets. The two planets detected so far have masses of at least 5.9 and 4.5\,M_{Jup}.
Dai, Z. -B., He, J. -J., Li, K., Li, L. -J., Liao, W. -P., Liu, L., Qian, S. -B., Zhang, J., Zhao, E. -G., Zhu, L. -Y.   +9 more
core   +1 more source

Capture into Apsidal Resonance and the Decimation of Planets around Inspiraling Binaries

The Astrophysical Journal Letters
Transiting circumbinary planets (CBPs) are conspicuously rare and entirely absent around stellar binaries with periods ≤7 days. Here we exploit a secular resonance to stimulate the orbit of a CBP into strong, disruptive interactions with the host binary.
Mohammad Farhat, Jihad Touma
doaj   +1 more source