Results 171 to 180 of about 400,542 (301)

The Two-zone Temperature Distribution Model: Inferences on the Structure and Composition of Dusty Protoplanetary Disks

The Astrophysical Journal
In order to understand the mineralogy and structure of protoplanetary disks, it is important to analyze them from both an empirical spectrum-based perspective and a radiative transfer image-based perspective.
William Grimble, Joel Kastner, B. Sargent, Keivan G. Stassun   +3 more
doaj   +1 more source

Chemistry in Protoplanetary Disks

, 2010
14 pages, 2 figures, 2 tables, pre-final chapter to be published in Encyclopedia of Astrobiology by Gargaud, M.; Cernicharo, J.; Viso, M.; Cleaves II, H.J.; Pinti, D.; Amils, R.; Kobayashi, K.; Irvine, W.M. (Eds.), Springer, 2011 (ISBN: 978-3-642-11279-9)
openaire   +2 more sources

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

Dust traps in protoplanetary disks efficiently form organic macromolecular matter

, 2023
Ligterink N, Pinilla P, Marel Nvd, Scheltinga JTv, Booth A, Alexander C, Riebe M.   +6 more
europepmc   +1 more source

The use of heterogeneous mechanics for modeling a gas-dust protoplanetary disk: 1. The laminar stage of subdisk formation

, 2020
А. В. Колесниченко
openalex   +1 more source

Secret of Longevity: Protoplanetary Disks as a Source of Gas in Debris Disks

The Astrophysical Journal
While protoplanetary disks (PPDs) are generally thought to disperse within several million years, recent observations have revealed gas in their older counterparts, debris disks.
Wataru Ooyama, Riouhei Nakatani, Takashi Hosokawa, Hiroto Mitani, Neal J. Turner   +4 more
doaj   +1 more source

Correction for Ciaravella et al., X-ray processing of a realistic ice mantle can explain the gas abundances in protoplanetary disks. [PDF]

Proc Natl Acad Sci U S A, 2020
europepmc   +1 more source

Rapid planetesimal formation in the inner protoplanetary disk [PDF]

, 2014
Joanna Drążkowska, F. Windmark⋆, Satoshi Okuzumi   +2 more
openalex   +1 more source

PROTOPLANETARY DISK EVOLUTION

, 2004
One of the most active fields of research in accretion disk theory is understanding the mechanisms that transport angular momentum outward. Two instabilities are thought to be responsible for it in massive, magnetized disks: the magnetorotational instability (MRI) caused by the presence of a weak magnetic field, and gravitational instabilities.This PhD
openaire   +1 more source

Bouncing Grains Keep Protoplanetary Disks Bright

The Astrophysical Journal
Protoplanetary disks display the so-called size–luminosity relation, where their millimeter wavelength fluxes scale linearly with their emitting areas.
Yansong Qian, Yanqin Wu
doaj   +1 more source