Results 71 to 80 of about 425,590 (288)
Dynamics of Protoplanetary Disks [PDF]
Annual Review of Astronomy and Astrophysics, 2011 Protoplanetary disks are quasi-steady structures whose evolution and dispersal determine the environment for planet formation. I review the theory of protoplanetary disk evolution and its connection to observations. Substantial progress has been made in elucidating the physics of potential angular momentum transport processes—including self-gravity ...
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Dust Evolution in Protoplanetary Disks [PDF]
, 2014 Accepted for publication as a chapter in Protostars and Planets VI, University of Arizona Press (2014), eds. H. Beuther, R. Klessen, C.
L. Testi +10 more
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Modeling and interpretation of images*
EPJ Web of Conferences, 2015 Imaging protoplanetary disks is a challenging but rewarding task. It is challenging because of the glare of the central star outshining the weak signal from the disk at shorter wavelengths and because of the limited spatial resolution at longer ...
Min Michiel
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Substructures in Compact Disks of the Taurus Star-forming Region
The Astrophysical Journal, 2023 Observations of substructure in protoplanetary disks have largely been limited to the brightest and largest disks, excluding the abundant population of compact disks, which are likely sites of planet formation.
Shangjia Zhang +7 more
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Gas Phase diagnostics of Protoplanetary disk extension [PDF]
, 2008 We investigate the potential of using ratios of fine structure and near-infrared forbidden line transitions of atomic carbon to diagnose protoplanetary disk extension. Using results from 2D photoionisation and radiative transfer modeling of a realistic protoplanetary disk structure irradiated by X-rays from a T Tauri star, we obtain theoretical ...
arxiv +1 more source
Evolution of protoplanetary disks from their taxonomy in scattered light: spirals, rings, cavities, and shadows [PDF]
Astronomy & Astrophysics, 2018 Context. Dozens of protoplanetary disks have been imaged in scattered light during the last decade. Aims. The variety of brightness, extension, and morphology from this census motivates a taxonomical study of protoplanetary disks in polarimetric light to
A. Garufi +13 more
semanticscholar +1 more source
The Inner Regions of Protoplanetary Disks [PDF]
Annual Review of Astronomy and Astrophysics, 2010 To understand how planetary systems form in the dusty disks around pre-main-sequence stars, a detailed knowledge of the structure and evolution of these disks is required. Although this is reasonably well understood for the regions of the disk beyond about 1 AU, the structure of these disks inward of 1 AU remains a puzzle. This is partly because it is
Cornelis P. Dullemond, John D. Monnier
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Magnetically driven outflows from Jovian circum-planetaryaccretion disks [PDF]
Astron.Astrophys.411:623-635,2003, 2003 We discuss the possibility to launch outflows from the close vicinity of a protoplanetary core considering a scenario where the protoplanet surrounded by a circum-planetary accretion disk is located in a circum-stellar disk. For the circum-planetary disk accretion rate we assume 6x10^{-5} M_jup/yr, implying peak disk temperatures of about 2000K.
arxiv +1 more source
Zooming in on the Formation of Protoplanetary Disks [PDF]
Proceedings of the International Astronomical Union, 2013 AbstractWe use the adaptive mesh refinement code RAMSES to model the formation of protoplanetary disks in realistic star formation environments. The resolution scales over up to 29 powers of two (~ 9 orders of magnitude) covering a range from outer scales of 40 pc to inner scales of 0.015 AU. The accretion rate from a 1.5 solar mass envelope peaks near
Nordlund, Åke +4 more
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Rapid Dust Growth during Hydrodynamic Clumping due to Streaming Instability
The Astrophysical Journal, 2023 Streaming instability is considered to be one of the dominant processes in promoting planetesimal formation by the gravitational collapse of dust clumps.
Ryosuke T. Tominaga, Hidekazu Tanaka
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