Results 171 to 180 of about 394,629 (288)

Chemistry in Protoplanetary Disks

Reviews in Mineralogy and Geochemistry
Chapter 2 accepted for publication in the Reviews in Mineralogy and Geochemistry (RiMG) Volume 90 on "Exoplanets: Compositions, Mineralogy, and Evolution" edited by Natalie Hinkel, Keith Putirka, and Siyi Xu; 24 pages and 4 ...
openaire   +2 more sources

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

Physical Processes in Protoplanetary Disks [PDF]

, 2019
This review introduces physical processes in protoplanetary disks relevant to accretion and the initial stages of planet formation. After a brief overview of the observational context, I introduce the elementary theory of disk structure and evolution, review the gas-phase physics of angular momentum transport through turbulence and disk winds, and ...
openaire   +3 more sources

Fully compressible simulations of the baroclinic instability in protoplanetary disks

EPJ Web of Conferences, 2013
The occurrence of the baroclinic instability in protoplanetary disks is investigated using fully compressible numerical simulations. We study the role of disk stratification and heat transfer in the development of the instability. Vortices are found to
Barge Pierre, Richard Samuel
doaj   +1 more source

Chondrules reveal large-scale outward transport of inner Solar System materials in the protoplanetary disk. [PDF]

Proc Natl Acad Sci U S A, 2020
Williams CD, Sanborn ME, Defouilloy C, Yin QZ, Kita NT, Ebel DS, Yamakawa A, Yamashita K.   +7 more
europepmc   +1 more source

Radial mixing in protoplanetary accretion disks [PDF]

, 2001
H. P. Gail
openalex   +1 more source

Light Echoes of Time-resolved Flares and Application to Kepler Data

The Open Journal of Astrophysics
Light echoes of stellar flares provide an intriguing option for exploring protoplanetary disks in young stellar systems. Previous work on light echoes of circumstellar disks made use of delta-function flares for modeling.
Austin King, Benjamin C. Bromley
doaj   +1 more source

Insight into the Formation of β Pic b through the Composition of Its Parent Protoplanetary Disk as Revealed by the β Pic Moving Group Member HD 181327

The Astronomical Journal
It has been suggested that β Pic b has a supersolar metallicity and subsolar C/O ratio. Assuming solar carbon and oxygen abundances for the star β Pic and therefore the planet’s parent protoplanetary disk, β Pic b’s C/O ratio suggests that it formed via ...
Henrique Reggiani, Jhon Yana Galarza, Kevin C. Schlaufman, David K. Sing, Brian F. Healy, Andrew McWilliam, Joshua D. Lothringer, Laurent Pueyo   +7 more
doaj   +1 more source

Protoplanetary Disks in the Nearest Star-Forming Cloud: Mid-Infrared Imaging and Optical Spectroscopy of MBM 12 Members [PDF]

, 2001
Ray Jayawardhana, S. J. Wolk, D. Barrado, C. M. Telesco, Thomas Hearty   +4 more
openalex   +1 more source

Molecular Gas Tracers in Young and Old Protoplanetary Disks

The Astrophysical Journal
Molecular emission is used to investigate both the physical and chemical properties of protoplanetary disks. Therefore, to derive disk properties accurately, we need a thorough understanding of the behavior of the molecular probes upon which we rely ...
Dana E. Anderson, L. Ilsedore Cleeves, Geoffrey A. Blake, Chunhua Qi, Edwin A. Bergin, John M. Carpenter, Kamber R. Schwarz, Claire Thilenius, Ke Zhang   +8 more
doaj   +1 more source