Results 141 to 150 of about 400,542 (301)

EFFECTS OF RADIONUCLIDES ON THE IONIZATION STATE OF PROTOPLANETARY DISKS AND DENSE CLOUD CORES [PDF]

, 2008
Toyoharu Umebayashi, Takenori Nakano
openalex   +1 more source

Spatial distribution of isotopes and compositional mixing in the inner protoplanetary disk [PDF]

, 2023
Kang Shuai, Hejiu Hui, Li-Yong Zhou, Weiqiang Li   +3 more
openalex   +1 more source

Asymmetric Temperature Variations In Protoplanetary Disks. I. Linear Theory, Corotating Spirals, and Ring Formation

The Astrophysical Journal
Protoplanetary disks can exhibit asymmetric temperature variations due to phenomena such as shadows cast by the inner disk or localized heating by young planets. We investigate the disk features induced by these asymmetric temperature variations. We find
Zhaohuan Zhu, Shangjia Zhang, Ted M. Johnson   +2 more
doaj   +1 more source

Global Simulations of Protoplanetary Disk Outflows with Coupled Non-ideal Magnetohydrodynamics and Consistent Thermochemistry [PDF]

, 2019
Lile Wang, Xue-Ning Bai, Jeremy Goodman
openalex   +1 more source

On Kinematic Measurements of Self-gravity in Protoplanetary Disks

The Astrophysical Journal
Using controlled injection and recovery experiments, we devised an analysis prescription to assess the quality of dynamical measurements of protoplanetary disk gas masses based on resolved (CO) spectral line data, given observational limitations ...
Sean M. Andrews, Richard Teague, Christopher P. Wirth, Jane Huang, Zhaohuan Zhu   +4 more
doaj   +1 more source

Breathing Life Into Dead-Zones

EPJ Web of Conferences, 2013
The terrestrial planet formation regions of protoplanetary disks are generally sufficiently cold to be con- sidered non-magnetized and, consequently, dynamically inactive.
Gressel Oliver, Nelson Richard P., Umurhan Orkan M.   +2 more
doaj   +1 more source

The Carbon Isotopic Ratio and Planet Formation

The Astrophysical Journal
We present the first detection of ^13 CCH in a protoplanetary disk (TW Hya). Using observations of C _2 H, we measure CCH/ ^13 CCH = 65 ± 20 gas with a CO isotopic ratio of ^12 CO/ ^13 CO = 21 ± 5.
Edwin A. Bergin, Arthur Bosman, Richard Teague, Jenny Calahan, Karen Willacy, L. Ilsedore Cleeves, Kamber Schwarz, Ke Zhang, Simon Bruderer   +8 more
doaj   +1 more source

Chemistry in disks. XI. Sulfur-bearing species as tracers of protoplanetary disk physics and chemistry: the DM Tau case [PDF]

, 2018
D. Semenov, Cécile Favre, D. Fedele, S. Guilloteau, Richard Teague, Th. Henning, A. Dutrey, E. Chapillon, F. Hersant, V. Piétu   +9 more
openalex   +1 more source

The Empirical and Radiative Transfer Hybrid (EaRTH) Disk Model: Merging Analyses of Protoplanetary Dust Disk Mineralogy and Structure

The Astrophysical Journal
Our understanding of how exoplanets form and evolve relies on analyses of both the mineralogy of protoplanetary disks and their detailed structures; however, these key complementary aspects of disks are usually studied separately.
William Grimble, Joel Kastner, Christophe Pinte, Beth Sargent, David A. Principe, Annie Dickson-Vandervelde, Aurora Belén Aguayo, Claudio Caceres, Matthias R. Schreiber, Keivan G. Stassun   +9 more
doaj   +1 more source

Surface Energy of Insoluble Organic Matter Simulant: Evaluation Based on Adhesive Force Measured by Centrifugal and Impact Separation Methods

The Planetary Science Journal
In protoplanetary disks, organic mantle is regarded as promoting the collisional sticking of rocky dust grains. However, the surface energy, which is one of the primary factors determining collisional sticking, has not been well quantified.
Yuuya Nagaashi, Yoshihiro Furukawa, Akiko M. Nakamura   +2 more
doaj   +1 more source