Results 11 to 20 of about 304,444 (325)

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

Dusty Planetary Systems [PDF]

open access: yes, 2012
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.
A Moro-Martín   +106 more
core   +3 more sources

The (In)Stability of Planetary Systems [PDF]

open access: yesThe Astrophysical Journal, 2004
We present results of numerical simulations which examine the dynamical stability of known planetary systems, a star with two or more planets. First we vary the initial conditions of each system based on observational data.
Chambers J. E.   +6 more
core   +4 more sources

Forming Different Planetary Systems [PDF]

open access: yesResearch in Astronomy and Astrophysics, 2012
With the increasing number of detected exoplanet samples, the statistical properties of planetary systems have become much clearer. In this review, we summarize the major statistics that have been revealed mainly by radial velocity and transiting ...
Armitage   +134 more
core   +3 more sources

The birth environment of planetary systems. [PDF]

open access: yesR Soc Open Sci, 2020
Star and planet formation are inextricably linked. In the earliest phases of the collapse of a protostar, a disc forms around the young star and such discs are observed for the first several million years of a star’s life. It is within these circumstellar, or protoplanetary, discs that the first stages of planet formation occur.
Parker RJ.
europepmc   +8 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   +9 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 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

A Quantitative Comparison of Exoplanet Catalogs

open access: yesGeosciences, 2018
In this study, we investigated the differences between four commonly-used exoplanet catalogs (exoplanet.eu; exoplanetarchive.ipac.caltech.edu; openexoplanetcatalogue.com; exoplanets.org) using a Kolmogorov–Smirnov (KS) test.
Dolev Bashi, Ravit Helled, Shay Zucker
doaj   +1 more source

Paleo‐Permeability Structure of the Crustal Section of the Samail Ophiolite Based on Automated Detection of Veins in X‐Ray CT Core Images From the Oman Drilling Project

open access: yesGeochemistry, Geophysics, Geosystems, 2023
To assess the paleo‐permeability structure of oceanic crust, we used 3‐D X‐ray Computed Tomography (XCT) images to quantify the distribution and geometry of mineral veins in core samples from Oman Drilling Project Holes GT1A, GT2A, and GT3A, which ...
Y. Akamatsu   +3 more
doaj   +1 more source

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