Results 31 to 40 of about 1,062,553 (301)

Early Planet Formation in Embedded Disks (eDisk). IV. The Ringed and Warped Structure of the Disk around the Class I Protostar L1489 IRS

open access: yesThe Astrophysical Journal, 2023
Constraining the physical and chemical structure of young embedded disks is crucial for understanding the earliest stages of planet formation. As part of the Early Planet Formation in Embedded Disks Atacama Large Millimeter/submillimeter Array Large ...
Yoshihide Yamato   +30 more
doaj   +1 more source

Early formation of planetary building blocks inferred from Pb isotopic ages of chondrules [PDF]

open access: yesScience Advances, 2017
Age dating of meteorite inclusions suggests rapid formation of the building blocks of terrestrial planets within 1 My of the Sun. The most abundant components of primitive meteorites (chondrites) are millimeter-sized glassy spherical chondrules formed by
J. Bollard   +8 more
semanticscholar   +1 more source

Mass and Eccentricity Constraints in the WASP-47 Planetary System from a Simultaneous Analysis of Radial Velocities & Transit Timing Variations [PDF]

open access: yes, 2016
Measuring precise planet masses, densities, and orbital dynamics in individual planetary systems is an important pathway toward understanding planet formation. The WASP-47 system has an unusual architecture that invites a complex formation theory.
L. Weiss   +11 more
semanticscholar   +1 more source

A Large Double-ring Disk Around the Taurus M Dwarf J04124068+2438157

open access: yesThe Astrophysical Journal, 2023
Planet formation imprints signatures on the physical structures of disks. In this paper, we present high-resolution (∼50 mas, 8 au) Atacama Large Millimeter/submillimeter Array observations of 1.3 mm dust continuum and CO line emission toward the disk ...
Feng Long   +25 more
doaj   +1 more source

Let’s Sweep: The Effect of Evolving J 2 on the Resonant Structure of a Three-planet System

open access: yesThe Astrophysical Journal, 2023
Short and ultrashort period planets are peculiar types of exoplanets with periods as short as a few days or less. Although it is challenging to detect them, already several have been observed, with many additional candidates.
Thea H. Faridani   +3 more
doaj   +1 more source

Consequences of planetary migration on the minor bodies of the early solar system [PDF]

open access: yesAstronomy & Astrophysics, 2019
Pebble accretion is an efficient mechanism that is able to build up the core of the giant planets within the lifetime of the protoplanetary disc gas-phase. The core grows via this process until the protoplanet reaches its pebble isolation mass and starts
S. Pirani   +4 more
semanticscholar   +1 more source

Habitable Planet Formation in Binary Planetary Systems [PDF]

open access: yesThe Astrophysical Journal, 2007
27 pages, 11 figures, submitted for ...
Haghighipour, Nader, Raymond, Sean N.
openaire   +2 more sources

Implications of the interstellar object 1I/'Oumuamua for planetary dynamics and planetesimal formation [PDF]

open access: yes, 2017
'Oumuamua, the first bona-fide interstellar planetesimal, was discovered passing through our Solar System on a hyperbolic orbit. This object was likely dynamically ejected from an extrasolar planetary system after a series of close encounters with gas ...
S. Raymond   +4 more
semanticscholar   +1 more source

Making the Planetary Material Diversity during the Early Assembling of the Solar System [PDF]

open access: yesAstrophysical Journal, 2018
Chondritic meteorites, the building blocks of terrestrial planets, are made of an out-of-equilibrium assemblage of solids formed at high and low temperatures, either in our Solar system or previous generations of stars. For decades this was considered to
F. Pignatale   +3 more
semanticscholar   +1 more source

Planetary system disruption by Galactic perturbations to wide binary stars [PDF]

open access: yesNature, 2013
Nearly half the exoplanets found within binary star systems reside in very wide binaries with average stellar separations greater than 1,000 astronomical units (one astronomical unit (au) being the Earth–Sun distance), yet the influence of such distant ...
N. Kaib, S. Raymond, M. Duncan
semanticscholar   +1 more source

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