Results 1 to 10 of about 315,273 (243)

Terrestrial planet formation. [PDF]

open access: yesProc Natl Acad Sci U S A, 2011
Advances in our understanding of terrestrial planet formation have come from a multidisciplinary approach. Studies of the ages and compositions of primitive meteorites with compositions similar to the Sun have helped to constrain the nature of the building blocks of planets.
Righter K, O'Brien DP.
europepmc   +5 more sources

Planet Formation [PDF]

open access: yes, 2021
Our galaxy is full with planets. We now know that planets and planetary systems are diverse and come with different sizes, masses and compositions, as well as various orbital architectures. Although there has been great progress in understanding planet formation in the last couple of decades, both observationally and theoretically, several fundamental ...
Helled, Ravit, Morbidelli, Alessandro
openaire   +2 more sources

The planet formation imager [PDF]

open access: yesExperimental Astronomy, 2018
Published in Experimental Astronomy as part of topical collection "Future of Optical-infrared Interferometry in Europe"
Monnier, John D.   +38 more
openaire   +9 more sources

Challenges in planet formation [PDF]

open access: yesJournal of Geophysical Research: Planets, 2016
AbstractOver the past two decades, large strides have been made in the field of planet formation. Yet fundamental questions remain. Here we review our state of understanding of five fundamental bottlenecks in planet formation. These are the following: (1) the structure and evolution of protoplanetary disks; (2) the growth of the first planetesimals; (3)
Morbidelli, Alessandro, Raymond, Sean N.
openaire   +5 more sources

Planet formation and migration [PDF]

open access: yesReports on Progress in Physics, 2005
We review the observations of extrasolar planets, ongoing developments in theories of planet formation, orbital migration, and the evolution of multiplanet systems.
Caroline Terquem   +3 more
openaire   +4 more sources

Formation of Terrestrial Planets [PDF]

open access: yes, 2018
The past decade has seen major progress in our understanding of terrestrial planet formation. Yet key questions remain. In this review we first address the growth of 100 km-scale planetesimals as a consequence of dust coagulation and concentration, with current models favoring the streaming instability.
Izidoro, A., Raymond, Sean N.
openaire   +7 more sources

Radioactive Planet Formation [PDF]

open access: yesThe Astrophysical Journal, 2021
Abstract Young stellar objects are observed to have large X-ray fluxes and are thought to produce commensurate luminosities in energetic particles (cosmic rays). This particle radiation, in turn, can synthesize short-lived radioactive nuclei through spallation.
openaire   +3 more sources

Formation of Giant Planets [PDF]

open access: yes, 2018
Giant planets are tens to thousands of times as massive as the Earth, and many times as large. Most of their volumes are occupied by hydrogen and helium, the primary constituents of the protostellar disks from which they formed. Significantly, the solar system giants are also highly enriched in heavier elements relative to the Sun, indicating that ...
Jack J. Lissauer, Gennaro D'Angelo
openaire   +3 more sources

Formation of the Planets [PDF]

open access: yesSymposium - International Astronomical Union, 1981
A timetable for an evolutionary sequence of processes, which begins with the formation of the solar nebula being nearly in equilibrium and ends with the planetary formation, is presented. Basic features of the processes and grounds for the estimation of time-scales are explained for each of the processes.
openaire   +2 more sources

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