Results 71 to 80 of about 18,502 (219)
EPJ Web of Conferences, 2015 In this chapter, we cover the formation of protoplanetary disk as a natural byproduct of the gravitational collapse of a slowly rotating, hydrostatic cloud.
Dominik Carsten
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Three-dimensional SPH Simulations of FU Orionis Star Flares in the Clumpy Accretion Model
The Astrophysical Journal, 2023 One of the early hypotheses about the origin of FU Orionis star (FUORs) outbursts explains them based on the fall of gas clumps from the remnants of protostellar clouds onto protoplanetary disks surrounding young stars.
Tatiana V. Demidova, Vladimir P. Grinin
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, 2010 There has been disagreement currently about whether cooling in protoplanetary disks can be sufficiently fast to induce the formation of gas giant protoplanets via gravitational instabilities.
Boley +38 more
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Location and sizes of forsterite grains in protoplanetary disks: interpretation from the Herschel DIGIT programme [PDF]
, 2014 The spectra of protoplanetary disks contain mid- and far- infrared emission features produced by forsterite dust grains. The spectral features contain information about the forsterite temperature, chemical composition and grain size.
de Vries, B. L. +6 more
core +6 more sources
Meteoritics &Planetary Science, Volume 61, Issue 4, Page 720-738, April 2026.Abstract Mechanisms for metal core formation in rocky planetesimals and planetary embryos remain poorly constrained, in part due to complexities arising from immiscibility in core‐forming liquids at low pressures. To assess the pressure dependence of immiscibility and its role in protoplanetary differentiation, we performed experiments at 3 and 5 GPa ...
Geoffrey David Bromiley +2 more
wiley +1 more source
The Astronomical JournalClose binary systems present challenges to planet formation. As binary separations decrease, so do the occurrence rates of protoplanetary disks in young systems and planets in mature systems.
Benjamin M. Tofflemire +10 more
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Protoplanetary gas disks in the far infrared
, 2009 The physical and chemical conditions in young protoplanetary disks set the boundary conditions for planet formation. Although the dust in disks is relatively easily detected as a far-IR photometric ``excess'' over the expected photospheric emission, much
Goicoechea, Javier R., Swinyard, Bruce
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Confined Chemistry in Space: Zeolite‐Supported Fe13 Nanoclusters Modulate CS Reactivity
Small Structures, Volume 7, Issue 3, March 2026.The study explores how an Fe13 cluster confined in chabazite reshapes the reaction of CS and H2 under astrochemical conditions. Confinement promotes C–S bond cleavage over hydrogenation, directing chemistry toward CH4 and H2S formation. Additional CS enables CS2 and C2 species. Microkinetic analysis identifies protoplanetary environments where zeolites
Gerard Pareras, Albert Rimola
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Exploring the Complex Ionization Environment of the Turbulent DM Tau Disk
The Astrophysical JournalIonization drives important chemical and dynamical processes within protoplanetary disks, including the formation of organics and water in the cold midplane and the transportation of material via accretion and magnetohydrodynamic flows.
Deryl E. Long +11 more
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Interaction of Supernova Ejecta with Nearby Protoplanetary Disks
, 2007 The early Solar System contained short-lived radionuclides such as 60Fe (t1/2 = 1.5 Myr) whose most likely source was a nearby supernova. Previous models of Solar System formation considered a supernova shock that triggered the collapse of the Sun's ...
Bedogni R. +7 more
core +2 more sources