Results 51 to 60 of about 3,349 (181)

Possibility of Detection of Exomoons with Inclined Orbits Orbiting Pulsar Planets Using the Time‐of‐Arrival Analysis

open access: yesAdvances in Astronomy, Volume 2014, Issue 1, 2014., 2014
The perturbation caused by planet‐moon binarity on the time‐of‐arrival (TOA) signal of a pulsar with an orbiting planet is derived for the case of the orbit of the planet‐moon system inclined of an angle α with respect to the plane of the orbit of the planet‐moon barycenter around the pulsar.
Antonio Pasqua   +2 more
wiley   +1 more source

The formation of planets in circumbinary discs [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2012
16 pages, 4 figures; submitted to ...
Pelupessy, F. I., Zwart, S. Portegies
openaire   +2 more sources

Terrestrial Circumbinary Planet Formation

open access: yes, 2022
We examine the late stage of terrestrial circumbinary planet formation in circumbinary disks that are initially inclined coplanar, polar, or misaligned to the binary orbital plane. While such small planets around binaries have yet to be observed, this is likely due to observational bias.
openaire   +1 more source

The Role of Gravitational Instabilities in the Feeding of Supermassive Black Holes

open access: yesAdvances in Astronomy, Volume 2012, Issue 1, 2012., 2012
I review the recent progresses that have been obtained, especially through the use of high‐resolution numerical simulations, on the dynamics of self‐gravitating accretion discs. A coherent picture is emerging, where the disc dynamics is controlled by a small number of parameters that determine whether the disc is stable or unstable, whether the ...
Giuseppe Lodato, Francesco Shankar
wiley   +1 more source

Massive Black Hole Binaries: Dynamical Evolution and Observational Signatures

open access: yesAdvances in Astronomy, Volume 2012, Issue 1, 2012., 2012
The study of the dynamical evolution of massive black hole pairs in mergers is crucial in the context of a hierarchical galaxy formation scenario. The timescales for the formation and the coalescence of black hole binaries are still poorly constrained, resulting in large uncertainties in the expected rate of massive black hole binaries detectable in ...
M. Dotti   +3 more
wiley   +1 more source

THE NEPTUNE-SIZED CIRCUMBINARY PLANET KEPLER-38b [PDF]

open access: yesThe Astrophysical Journal, 2012
We discuss the discovery and characterization of the circumbinary planet Kepler-38b. The stellar binary is single-lined, with a period of 18.8 days, and consists of a moderately evolved main-sequence star (M_A = 0.949 +/- 0.059 solar masses and R_A = 1.757 +/- 0.034 solar radii) paired with a low-mass star (M_B = 0.249 +/- 0.010 solar masses and R_B ...
Orosz, Jerome A.   +30 more
openaire   +4 more sources

Limits to the presence of transiting circumbinary planets in CoRoT data [PDF]

open access: yes, 2016
The CoRoT mission during its flight-phase 2007-2012 delivered the light-curves for over 2000 eclipsing binaries. Data from the Kepler mission have proven the existence of several transiting circumbinary planets.
Almenara, J. M.   +4 more
core   +2 more sources

A Dynamical Analysis of the Proposed Circumbinary HW Virginis Planetary System [PDF]

open access: yes, 2012
In 2009, the discovery of two planets orbiting the evolved binary star system HW Virginis was announced, based on systematic variations in the timing of eclipses between the two stars. The planets invoked in that work were significantly more massive than
C. G. Tinney   +5 more
core   +5 more sources

The Way to Circumbinary Planets

open access: yes, 2018
Circumbinary planets (CBPs) are planets that orbit around both stars of a binary system. This chapter traces the history of research on CBPs and provides an overview over the current knowledge about CBPs and their detection methods. After early speculations about CBPs, inspired by binary star systems and popularized by fictional works, their scientific
Deeg, Hans J, Doyle, Laurance R
openaire   +2 more sources

Stable climates for temperate rocky circumbinary planets [PDF]

open access: yesJournal of Geophysical Research: Planets, 2020
Abstract Circumbinary planets may comprise a significant fraction of the temperate rocky planets in our galaxy. A wide range of previous work has explored the climate of circumbinary planets with one‐dimensional energy balance models, but studies utilizing three‐dimensional general circulation models (GCMs) have ...
openaire   +1 more source

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