Results 1 to 10 of about 3,291 (142)

Concealing Circumbinary Planets with Tidal Shrinkage [PDF]

The Astrophysical Journal
Of the 14 transiting planets that have been detected orbiting eclipsing binaries (“circumbinary planets”), none have been detected with stellar binary orbital periods shorter than 7 days, despite such binaries existing in abundance.
Saahit Mogan, J.J. Zanazzi
doaj   +2 more sources

Circumbinary Planet Formation in the Kepler-16 system. I. N-body Simulations [PDF]

, 2012
The recently discovered circumbinary planets (Kepler-16 b, Kepler-34 b, Kepler-35 b) represent the first direct evidence of the viability of planet formation in circumbinary orbits.
Holman, Ida, Marzari, Marzari, Meschiari, Moriwaki, Slawson, Stefano Meschiari, Stewart, Weidenschilling, Winn, Xie, Xie   +12 more
core   +2 more sources

TATOOINE'S FUTURE: THE ECCENTRIC RESPONSE OF KEPLER'S CIRCUMBINARY PLANETS TO COMMON-ENVELOPE EVOLUTION OF THEIR HOST STARS. [PDF]

Astrophys J, 2016
Kostov VB, Moore K, Tamayo D, Jayawardhana R, Rinehart SA.   +4 more
europepmc   +3 more sources

A pair of planets around HD 202206 or a circumbinary planet?

, 2004
Long-term precise Doppler measurements with the CORALIE spectrograph reveal the presence of a second planet orbiting the solar-type star HD202206. The radial-velocity combined fit yields companion masses of m_2\sini = 17.4 M_Jup and 2.44 M_Jup, semi ...
A. C. M. Correia, D. Naef, D. Queloz, F. Pepe, Flower, Halbwachs, J. Laskar, Laskar, Laskar, Laskar, Laughlin, Laughlin, M. Mayor, Mayor, Mazeh, N. C. Santos, Nelson, S. Udry, Santos, Schaerer, Udry, Udry   +21 more
core   +6 more sources

Analytic orbit propagation for transiting circumbinary planets [PDF]

, 2015
The herein presented analytical framework fully describes the motion of coplanar systems consisting of a stellar binary and a planet orbiting both stars on orbital as well as secular timescales.
Eggl, Siegfried, Georgakarakos, Nikolaos
core   +3 more sources

Coplanar Circumbinary Planets Can Be Unstable to Large Tilt Oscillations in the Presence of an Inner Polar Planet

The Astrophysical Journal Letters, 2023
Mutually misaligned circumbinary planets may form in a warped or broken gas disk or from later planet–planet interactions. With numerical simulations and analytic estimates we explore the dynamics of two circumbinary planets with a large mutual ...
Anna C. Childs, Rebecca G. Martin, Stephen Lepp, Stephen H. Lubow, Aaron M. Geller   +4 more
doaj   +1 more source

AC Her: Evidence of the First Polar Circumbinary Planet

The Astrophysical Journal Letters, 2023
We examine the geometry of the post–asymptotic giant branch (AGB) star binary AC Her and its circumbinary disk. We show that the observations describe a binary orbit that is perpendicular to the disk with an angular momentum vector that is within 9° of ...
Rebecca G. Martin, Stephen H. Lubow, David Vallet, Narsireddy Anugu, Douglas R. Gies   +4 more
doaj   +1 more source

Circumbinary Habitable Zones in the Presence of a Giant Planet

Frontiers in Astronomy and Space Sciences, 2021
Determining habitable zones in binary star systems can be a challenging task due to the combination of perturbed planetary orbits and varying stellar irradiation conditions.
Nikolaos Georgakarakos, Nikolaos Georgakarakos, Siegfried Eggl, Siegfried Eggl, Siegfried Eggl, Siegfried Eggl, Ian Dobbs-Dixon, Ian Dobbs-Dixon, Ian Dobbs-Dixon   +8 more
doaj   +1 more source

Three-dimensional Orbit of AC Her Determined: Binary-induced Truncation Cannot Explain the Large Cavity in This Post-AGB Transition Disk

The Astrophysical Journal, 2023
Some evolved binaries, namely post–asymptotic giant branch (AGB) binaries, are surrounded by stable and massive circumbinary disks similar to protoplanetary disks found around young stars. Around 10% of these disks are transition disks: they have a large
Narsireddy Anugu, Jacques Kluska, Tyler Gardner, John D. Monnier, Hans Van Winckel, Gail H. Schaefer, Stefan Kraus, Jean-Baptiste Le Bouquin, Steve Ertel, Antoine Mérand, Robert Klement, Claire L Davies, Jacob Ennis, Aaron Labdon, Cyprien Lanthermann, Benjamin R. Setterholm, Theo ten Brummelaar, Akke Corporaal, Laurence Sabin, Jayadev Rajagopal   +19 more
doaj   +1 more source

Hunting for Cold Exoplanets via Microlensing

Comptes Rendus. Physique, 2023
Microlensing can detect planets at distances ranging from a few hundred parsecs all the way to the Galactic center. The maximum sensitivity is reached for systems that are located half way to the galactic center, with planets orbiting the lens star at a ...
Beaulieu, Jean-Philippe
doaj   +1 more source