Results 101 to 110 of about 73,704 (164)

Tracing Pebble Drift History in Two Protoplanetary Disks with CO Enhancement

open access: yesThe Astrophysical Journal
Pebble drift is an important mechanism for supplying the materials needed to build planets in the inner region of protoplanetary disks. Thus, constraining pebble drift’s timescales and mass flux is essential to understanding planet formation history ...
Tayt Armitage   +17 more
doaj   +1 more source

88th Annual Meeting of the Meteoritical Society 2026: Abstracts

open access: yes
Meteoritics &Planetary Science, Volume 61, Issue S1, Page S48-S551, August 2026.
wiley   +1 more source

The ALMA Survey of Gas Evolution of PROtoplanetary Disks (AGE-PRO). I. Program Overview and Summary of First Results

open access: yesThe Astrophysical Journal
We present the Atacama Large Millimeter/submillimeter Array Survey of Gas Evolution of PROtoplanetary Disks (AGE-PRO), a large program of the ALMA. AGE-PRO aims to systematically trace the evolution of gas disk mass and size throughout the lifetime of ...
Ke Zhang   +21 more
doaj   +1 more source

Effects of size, composition, and volatile coverage on the fragmentation velocity of granular clusters in protoplanetary disks

open access: yesAstronomy & Astrophysics
Context. Interstellar dust grains accrete into protoplanetary disks during star formation. The coagulation of these grains produces dust clusters that collide with each other.
Verkercke S.   +7 more
doaj   +1 more source

Shadow-induced Warps in Protoplanetary Disks

open access: yesThe Astrophysical Journal Letters
Shadows are commonly observed in protoplanetary disks in near-infrared (NIR) and (sub)millimeter images, often cast by misaligned inner disks or other obscuring material.
Shangjia Zhang   +2 more
doaj   +1 more source

Dust Evolution in Protoplanetary Disks

open access: yes
Submitted version, to be published in: Handbook of Exoplanets, 2nd Edition, Hans Deeg and Juan Antonio Belmonte (Eds. in Chief), Springer International Publishing AG, part of Springer Nature. Comments welcome.
van der Marel, Nienke, Pinilla, Paola
openaire   +2 more sources

JVLA Measurement of Grain Size in the Compact Dust Ring Around Class I Protostar WL 17

open access: yesThe Astronomical Journal
The maximum grain size in protoplanetary disks is a critical parameter for planet formation, as the efficiency of mechanisms like streaming instability and pebble accretion depend on grain size.
Jun Hashimoto   +4 more
doaj   +1 more source

Gas in Protoplanetary Disks

open access: yes, 2008
Gas makes up the bulk of the mass in a protoplanetary disk, but it is much more difficult to observe than the smaller dust component. The lifetime of gas in a disk has far-reaching consequences, including limiting the time available for giant planet ...
Roberge, Aki
core  

exoALMA. I. Science Goals, Project Design, and Data Products

open access: yesThe Astrophysical Journal Letters
Planet formation is a hugely dynamic process requiring the transport, concentration, and assimilation of gas and dust to form the first planetesimals and cores.
Richard Teague   +40 more
doaj   +1 more source

JWST Imaging of Edge-on Protoplanetary Disks. II. Appearance of Edge-on Disks with a Tilted Inner Region: Case Study of IRAS04302+2247

open access: yesThe Astrophysical Journal
We present James Webb Space Telescope imaging from 2 to 21 μ m of the edge-on protoplanetary disk around the embedded young star IRAS04302+2247. The structure of the source shows two reflection nebulae separated by a dark lane.
Marion Villenave   +8 more
doaj   +1 more source

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