Results 1 to 10 of about 1,052,183 (223)
Post-main-sequence planetary system evolution [PDF]
Royal Society Open Science, 2016 The fates of planetary systems provide unassailable insights into their formation and represent rich cross-disciplinary dynamical laboratories. Mounting observations of post-main-sequence planetary systems necessitate a complementary level of theoretical
Dimitri Veras
doaj +2 more sources
Resonant periodic orbits in the exoplanetary systems [PDF]
Astrophysics and Space Science, Volume 349, Issue 2, pp.657-676
(2014), 2013 The planetary dynamics of $4/3$, $3/2$, $5/2$, $3/1$ and $4/1$ mean motion resonances is studied by using the model of the general three body problem in a rotating frame and by determining families of periodic orbits for each resonance. Both planar and spatial cases are examined.
Antoniadou, K. I., Voyatzis, G.
arxiv +3 more sources
Dust in the 55 Cancri planetary system [PDF]
, 2000 The presence of debris disks around $\sim$ 1-Gyr-old main sequence stars suggests that an appreciable amount of dust may persist even in mature planetary systems.
Dominik C. +10 more
core +3 more sources
PARAMETER OPTIMIZATION FOR A THERMAL SIMULATION OF AN URBAN AREA [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023 Urban heat island (UHI) phenomenon is a significant challenge in urban planning, and accurate temperature predictions are crucial for effective decision-making. The choice of material parameters is crucial to simulate a realistic temperature distribution
B. Kottler +5 more
doaj +1 more source
The Compositional Dimension of Planet Formation [PDF]
Planetary Systems Now. May 2023, 1-47, 2023 The great diversity of the thousands of planets known to date is proof of the multitude of ways in which formation and evolution processes can shape the life of planetary systems. Multiple formation and evolution paths, however, can result in the same planetary architecture.
arxiv +1 more source
Planetary systems with forces other than gravitational forces [PDF]
, 2022 A discrete and exact algorithm for obtaining planetary systems is derived in a recent article (Eur. Phys. J. Plus 2022, 137:99). Here the algorithm is used to obtain planetary systems with forces different from the Newtonian inverse square gravitational forces.
arxiv +1 more source
On Populism, Planets, and Why Concepts Should Precede Definitions and Theory-Seeking
Sociologica, 2019 Despite its remarkable growth in recent years, the study of populism has long suffered from the lack of a comprehensive theory about its causes, development, and outcomes.
Takis S. Pappas
doaj +1 more source
Normalized angular momentum deficit: A tool for comparing the violence of the dynamical histories of planetary systems [PDF]
A&A 636, A53 (2020), 2020 Population studies of the orbital characteristics of exoplanets in multi-planet systems have highlighted the existence of an anticorrelation between the average orbital eccentricity of planets and the number of planets of their host system, that is, its multiplicity.
arxiv +1 more source
The record‐breaking heat wave of June 2019 in Central Europe
Atmospheric Science Letters, 2020 After being hit by several devastating heat waves in recent years, Europe experienced an exceptionally hot June in 2019 again. This June is the hottest one on record over Central Europe both in a monthly‐mean sense and in terms of the number of extremely
Peiqiang Xu +4 more
doaj +1 more source
A Bayesian Monte Carlo assessment of orbital stability in the late stages of planetary system formation [PDF]
, 2022 The final orbital configuration of a planetary system is shaped by both its early star-disk environment and late-stage gravitational interactions. Assessing the relative importance of each of these factors is not straightforward due to the observed diversity of planetary systems compounded by observational biases.
arxiv +1 more source