Results 41 to 50 of about 3,349 (181)

Geometrical and Physical Properties of Circumbinary Discs in Eccentric Stellar Binaries [PDF]

, 2008
In a previous work (Pichardo et al. 2005), we studied stable configurations for circumstellar discs in eccentric binary systems. We searched for "invariant loops": closed curves (analogous to stable periodic orbits in time-independent potentials) that ...
Akeson, Aumann, Barbara Pichardo, Barrado y Navascues, Bate, Bate, Beust, Boden, Bodenheimer, Bonnell, Carpenter, Close, Deller, Dent, Dermott, Duchêne, Duchêne, Duvert, Elias, Els, Fischer, Freistetter, Goldstein, Guilloteau, Haghighipour, Hartigan, Hatzes, Hioki, Holland, Holman, Itoh, Jensen, Kalas, Kawabe, Koerner, Krist, Kuchner, Lada, Lim, Linda S. Sparke, Looney, Luis A. Aguilar, Lyne, Maciejewski, Maciejewski, Marsh, Mathieu, Mathieu, Mathieu, Mathieu, McCabe, Pfahl, Pichardo, Prato, Quillen, Quintana, Raghavan, Roddier, Rudak, Schneider, Sigurdsson, Sigurdsson, Silber, Soderblom, Stapelfeldt, Telesco, Tokovinin, Torres, Trilling, Weaver, White, Wyatt   +71 more
core   +1 more source

Orbital dynamics of circumbinary planets [PDF]

Monthly Notices of the Royal Astronomical Society, 2019
ABSTRACT We investigate the dynamics of a non-zero mass, circular orbit planet around an eccentric orbit binary for various values of the binary eccentricity, binary mass fraction, planet mass, and planet semimajor axis by means of numerical simulations.
Cheng Chen, Alessia Franchini, Stephen H Lubow, Rebecca G Martin   +3 more
openaire   +4 more sources

Orbital evolution of a circumbinary planet in a gaseous disk

Earth, Planets and Space, 2019
Sub-Jupiter classed circumbinary planets discovered in close-in binary systems have orbits just beyond the dynamically unstable region, which is determined by the eccentricity and mass ratio of the host binary stars.
Akihiro Yamanaka, Takanori Sasaki
doaj   +1 more source

Circumbinary Planets and the SOLARIS Project [PDF]

Proceedings of the International Astronomical Union, 2011
AbstractExtrasolar planets in binary and multiple star systems have become a noticeable niche with about 50 planets among over 500 known. Here we however focus on a particular subset of exoplanets in binary star systems — circumbinary planets. They have the unique advantage that a search for circumbinary planets does also significantly contribute to ...
M. Konacki, P. Sybilski, Stanisław Kozłowski, M. Ratajczak, K. G. Hełminiak   +4 more
openalex   +2 more sources

Circumbinary Planets Orbiting the Rapidly Pulsating Subdwarf B-type binary NY Vir [PDF]

, 2011
We report here the tentative discovery of a Jovian planet in orbit around the rapidly pulsating subdwarf B-type (sdB-type) eclipsing binary NY Vir. By using new determined eclipse times together with those collected from the literature, we detect that ...
For, Geier, Geier, Kilkenny, Lee, Menzies, Ostensen, Polubek, Pringle, Qian, Qian, Qian, Spruit, Stumpff, Wils   +14 more
core   +3 more sources

Equilibrium Points and Related Periodic Motions in the Restricted Three‐Body Problem with Angular Velocity and Radiation Effects

Advances in Astronomy, Volume 2015, Issue 1, 2015., 2015
The paper deals with a modification of the restricted three‐body problem in which the angular velocity variation is considered in the case where the primaries are sources of radiation. In particular, the existence and stability of its equilibrium points in the plane of motion of the primaries are studied. We find that this problem admits the well‐known
E. A. Perdios, V. S. Kalantonis, A. E. Perdiou, A. A. Nikaki, Zdzislaw E. Musielak   +4 more
wiley   +1 more source

Dusty Blue Supergiants: News from High‐Angular Resolution Observations

Advances in Astronomy, Volume 2014, Issue 1, 2014., 2014
An overview is presented of the recent advances in understanding the B[e] phenomenon among blue supergiant stars in light of high‐angular resolution observations and with an emphasis on the results obtained by means of long baseline optical stellar interferometry.
W. J. de Wit, R. D. Oudmaijer, J. S. Vink, Lydia Cidale   +3 more
wiley   +1 more source

Identifying Transiting Circumbinary Planets [PDF]

Proceedings of the International Astronomical Union, 2008
AbstractTransiting planets manifest themselves by a periodic dimming of their host star by a fixed amount. On the other hand, light curves of transiting circumbinary (CB) planets are expected to be neither periodic nor to have a single depth while in transit, making the Box-Least-Squares (BLS) transit detection method almost ineffective.
openaire   +2 more sources

Low spin-axis variations of circumbinary planets

Monthly Notices of the Royal Astronomical Society, 2022
ABSTRACT Having a massive moon has been considered as a primary mechanism for stabilized planetary obliquity, an example of which being our Earth. This is, however, not always consistent with the exoplanetary cases. This article details the discovery of an alternative mechanism, namely that planets orbiting around binary stars tend to ...
Renyi Chen, Gongjie Li, Molei Tao
openaire   +2 more sources

Near-infrared Accretion Signatures from the Circumbinary Planetary-mass Companion Delorme 1 (AB)b

The Astrophysical Journal Letters, 2022
Accretion signatures from bound brown dwarf and protoplanetary companions provide evidence for ongoing planet formation, and accreting substellar objects have enabled new avenues to study the astrophysical mechanisms controlling the formation and ...
S. K. Betti, K. B. Follette, K. Ward-Duong, Y. Aoyama, G.-D. Marleau, J. Bary, C. Robinson, M. Janson, W. Balmer, G. Chauvin, P. Palma-Bifani   +10 more
doaj   +1 more source