, 2013 Extensive photometric stellar surveys show that many main sequence stars show emission at infrared and longer wavelengths that is in excess of the stellar photosphere; this emission is thought to arise from circumstellar dust. The presence of dust disks is confirmed by spatially resolved imaging at infrared to millimeter wavelengths (tracing the dust ...
Amaya Moro-Martın
core +5 more sources
A Population of planetary systems characterized by short-period, Earth-sized planets. [PDF]
Proc Natl Acad Sci U S A, 2016 Significance Characterizing the variety of planets and planetary systems orbiting distant stars (exoplanets) is a key ingredient to improving our understanding of the Solar System and of planet formation in general. One important observable property of a
Steffen JH, Coughlin JL.
europepmc +3 more sources
Stellar clustering shapes the architecture of planetary systems [PDF]
Nature, 2020 Andrew J Winter +2 more
exaly +2 more sources
The New Generation Planetary Population Synthesis (NGPPS). IV. Planetary systems around low-mass stars [PDF]
Astronomy & Astrophysics, 2021 Previous work concerning planet formation around low-mass stars has often been limited to large planets and individual systems. As current surveys routinely detect planets down to terrestrial size in these systems, a more holistic approach that reflects ...
R. Burn +7 more
semanticscholar +1 more source
Planetary Systems Around White Dwarfs [PDF]
Oxford Research Encyclopedia of Planetary Science, 2021 White dwarf planetary science is a rapidly growing field of research featuring a diverse set of observations and theoretical explorations. Giant planets, minor planets, and debris discs have all been detected orbiting white dwarfs.
D. Veras
semanticscholar +1 more source
Astrochemistry and compositions of planetary systems [PDF]
Physics reports, 2020 Planets form and obtain their compositions in disks of gas and dust around young stars. The chemical compositions of these planet-forming disks regulate all aspects of planetary compositions from bulk elemental inventories to access to water and reactive
K. Öberg, E. Bergin
semanticscholar +1 more source
The new generation planetary population synthesis (NGPPS). I. Bern global model of planet formation and evolution, model tests, and emerging planetary systems [PDF]
Astronomy & Astrophysics, 2020 Aims. Comparing theoretical models of exoplanet formation with observations allows one to make key step forward towards an understanding of planetary systems.
A. Emsenhuber +5 more
semanticscholar +1 more source
Architectures of Exoplanetary Systems. III. Eccentricity and Mutual Inclination Distributions of AMD-stable Planetary Systems [PDF]
Astronomical Journal, 2020 The angular momentum deficit (AMD) of a planetary system is a measure of its orbital excitation and a predictor of long-term stability. We adopt the AMD-stability criterion to constrain the orbital architectures for exoplanetary systems.
M. He, E. Ford, D. Ragozzine, D. Carrera
semanticscholar +1 more source
Dynamics of Planetary Systems within Star Clusters: Aspects of the Solar System’s Early Evolution [PDF]
Astronomical Journal, 2020 Most planetary systems—including our own—are born within stellar clusters, where interactions with neighboring stars can help shape the system architecture. This paper develops an orbit-averaged formalism to characterize the cluster’s mean-field effects,
K. Batygin +3 more
semanticscholar +1 more source
Machines, 2023 Planetary gear systems have many advantages over other gear systems. Previous studies on its dynamic characteristics mostly used Earth as the reference system, which is inconsistent with the actual working conditions of many planetary gear systems, such ...
Bingwei Gao, Yongkang Wang, Guangbin Yu
doaj +1 more source