Results 11 to 20 of about 1,052,332 (366)

The fragility of planetary systems [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2015
We specify the range to which perturbations penetrate a planetesimal system. Such perturbations can originate from massive planets or from encounters with other stars.
Jilkova, Lucie, Zwart, Simon Portegies
core   +7 more sources

The formation of planetary systems with SPICA [PDF]

open access: yesPublications of the Astronomical Society of Australia, 2021
Abstract In this era of spatially resolved observations of planet-forming disks with Atacama Large Millimeter Array (ALMA) and large ground-based telescopes such as the Very Large Telescope (VLT), Keck, and Subaru, we still lack statistically relevant information on the quantity and composition of the material that is building the planets, such as ...
Kamp, I.   +40 more
openaire   +10 more sources

The planetary system of upsilon Andromedae [PDF]

open access: bronzeAstronomy & Astrophysics, 2001
The version accepted by A&A, 16 pages, AAS style ...
Ing-Guey Jiang, W.-H. Ip
openalex   +5 more sources

Planetary Systems Biology [PDF]

open access: yesMolecular Cell, 2005
Combining paleogenetics, protein engineering, synthetic biology, and metabolic modeling, a planetary biology perspective is brought to bear on adaptive evolutionary events in ancient bacteria.
Department of Chemistry, University of Florida, Gainesville, FL 32611 USA ( host institution )   +2 more
openaire   +4 more sources

The (In)stability of Planetary Systems [PDF]

open access: yesThe Astrophysical Journal, 2004
37 pages, 49 figures, 13 tables, submitted to ...
Rory Barnes, Thomas R. Quinn
openaire   +3 more sources

Fault diagnosis method of shearer planetary gear transmission systemunder variable speed conditions

open access: yesGong-kuang zidonghua, 2021
When the shearer cuts the coal seam, the planetary gear transmission system of the traction unit is in a variable speed working condition, and the structure of the planetary gear transmission system is complicated.
MAO Qinghua1,2,   +5 more
doaj   +1 more source

A new paradigm of governance for a carbon-pricing system [PDF]

open access: yes, 2016
Throughout its life, the United Nations has played a pioneering role in the world of ideas. COP21 – also known as Paris 2015 – shows the path for the United Nations to establish a new governance that will enforce the compliance of a new planetary carbon ...
Berezin, A.   +2 more
core   +1 more source

Contrast analysis between the trajectory of the planetary system and the periodicity of solar activity [PDF]

open access: yesAnnales Geophysicae, 2017
The relationship between the periodic movement of the planetary system and its influence on solar activity is currently a serious topic in research. The kinematic index of the planet juncture index has been developed to find the track and variation of
W. Sun   +9 more
doaj   +1 more source

Fatigue Reliability Design Method for Large Aviation Planetary System Considering the Flexibility of the Ring Gear

open access: yesApplied Sciences, 2022
As the foundation and core of various heavy aircraft transmission systems, the reliability level of large-scale aviation planetary mechanism restricts the economic affordability and service safety for the aircraft to a great extent.
Ming Li, Yuan Luo, Liyang Xie
doaj   +1 more source

A new metric to quantify the similarity between planetary systems - application to dimensionality reduction using T-SNE [PDF]

open access: yesA&A 624, A45 (2019), 2019
Planet formation models are now often considering the formation of planetary systems, with more than one planet per system. This raises the question of how to represent planetary systems in a convenient way, (e.g. for visualisation purpose) and how to define the similarity between two planetary systems, for example to compare models and observations ...
arxiv   +1 more source

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