Results 61 to 70 of about 71,588 (268)

Gas Evolution in Protoplanetary Disks [PDF]

AIP Conference Proceedings, 2009
This article summarizes a Splinter Session at the Cool Stars XV conference in St. Andrews with 3 review and 4 contributed talks. The speakers have discussed various approaches to understand the structure and evolution of the gas component in protoplanetary disks.
Peter Woitke, Bill Dent, Wing-Fai Thi, Bruce Sibthorpe, Ken Rice, Jonathan Williams, Aurora Sicilia-Aguilar, Joanna Brown, Inga Kamp, Ilaria Pascucci, Richard Alexander, Aki Roberge, Eric Stempels   +12 more
openaire   +6 more sources

Giant Planet Formation by Disk Instability: A Comparison Simulation With An Improved Radiative Scheme

, 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, Boley, Boley, Boley, Boley, Boss, Boss, Boss, Boss, Boss, Boss, Boss, Boss, Boss, Cai, Cai, D'Alessio, Dodson-Robinson, Durisen, Gammie, Haisch, Hayfield, Johnson, Mayer, Mayer, Mejía, Nelson, Nelson, Pickett, Pickett, Pickett, Pickett, Pickett, Rafikov, Rafikov, Rafikov, Rice, Vorobyov, Zhu   +38 more
core   +1 more source

Shedding Light on the Origin of the Broken Misaligned Circumtriple Disk around GW Ori

The Astrophysical Journal Letters
We revisit the origin of the observed misaligned rings in the circumtriple disk around GW Ori. Previous studies appeared to disagree on whether disk breaking is caused by the differential precession driven in the disk by the triple star system.
Jeremy L. Smallwood, Stephen H. Lubow, Rebecca G. Martin, Rebecca Nealon   +3 more
doaj   +1 more source

The Roles of Dust Growth in the Temperature Evolution and Snow Line Migration in Magnetically Accreting Protoplanetary Disks

The Astrophysical Journal, 2023
The temperature structure of protoplanetary disks provides an important constraint on where in the disks rocky planets like our own form. Recent nonideal magnetohydrodynamical (MHD) simulations have shown that the internal Joule heating associated with ...
Katsushi Kondo, Satoshi Okuzumi, Shoji Mori   +2 more
doaj   +1 more source

Two-Dimensional Transport of Solids in Viscous Protoplanetary Disks [PDF]

, 2008
Large-scale radial transport of solids appears to be a fundamental consequence of protoplanetary disk evolution based on the presence of high temperature minerals in comets and the outer regions of protoplanetary disks around other stars. Further, inward transport of solids from the outer regions of the solar nebula has been postulated to be the manner
arxiv   +1 more source

Mid‐infrared detection and characterization of refractory inclusions in CM and CO chondrites: A non‐destructive approach for returned space samples

Meteoritics &Planetary Science, Volume 60, Issue 3, Page 544-569, March 2025.
Abstract Refractory inclusions (RIs) in chondrites are widely used as tracers of early solar system formation conditions. In the context of sample‐return missions, a non‐destructive and non‐invasive analytical tool that can rapidly detect and characterize RIs in space samples during their early phase of study is highly needed.
Jean Charlier, Alice Aléon‐Toppani, Rosario Brunetto, Jérôme Aléon, Ferenc Borondics   +4 more
wiley   +1 more source

Transport of First Rocks of The Solar System by X-winds [PDF]

, 2010
It has been suggested that chondrules and calcium-aluminum-rich inclusions (CAIs) were formed at the inner edge of the protoplanetary disk and then entrained in magnetocentrifugal X-winds. We study trajectories of such solid bodies with the consideration
Desch, Desch, Hartmann, Jones, Renyu Hu, Shang, Shu, Tayler, Weidenschilling, Youdin   +9 more
core   +2 more sources

On the Formation of Planets in the Milky Way’s Thick Disk

The Astrophysical Journal
Exoplanet demographic surveys have revealed that close-in (≲1 au) small planets orbiting stars in the Milky Way’s thick disk are ∼50% less abundant than those orbiting stars in the Galactic thin disk.
Tim Hallatt, Eve J. Lee
doaj   +1 more source

Disk formation and structure*

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
doaj   +1 more source

The Nitrogen Carrier in Inner Protoplanetary Disks [PDF]

The Astrophysical Journal, 2019
Abstract The dominant reservoirs of elemental nitrogen in protoplanetary disks have not yet been observationally identified. Likely candidates are HCN, NH3, and N2. The relative abundances of these carriers determine the composition of planetesimals as a function of disk radius due to strong differences in their volatility. A significant
Klaus M. Pontoppidan, Colette Salyk, Andrea Banzatti, Geoffrey A. Blake, Catherine Walsh, John H. Lacy, Matthew J. Richter   +6 more
openaire   +6 more sources