Results 111 to 120 of about 394,629 (288)
Emission from Multiple Molecular Isotopologues in a High-inclination Protoplanetary Disk
The Astronomical JournalWe present a MIRI-MRS spectrum of the high-inclination protoplanetary disk around the solar-mass (K0) star MY Lup, obtained as part of the JWST Disk Infrared Spectral Chemistry Survey (JDISCS). The spectrum shows an unusually weak water emission spectrum
Colette Salyk +9 more
doaj +1 more source
A Semi-Analytical Description for the Formation and Gravitational Evolution of Protoplanetary Disks
, 2013 We investigate the formation process of self-gravitating protoplanetary disks in unmagnetized molecular clouds. The angular momentum is redistributed by the action of gravitational torques in the massive disk during its early formation.
Inutsuka, Shu-ichiro +2 more
core +1 more source
The Orbit of the Companion to HD 100453A: Binary-driven Spiral Arms in a Protoplanetary Disk [PDF]
, 2018 HD 100453AB is a 10 ± 2 Myr old binary whose protoplanetary disk was recently revealed to host a global two-armed spiral structure. Given the relatively small projected separation of the binary (1.″05, or ∼108 au), gravitational perturbations by the ...
K. Wagner +11 more
semanticscholar +1 more source
The Astrophysical JournalUpcoming new coronographs with deeper contrast limits, together with planned and current high-contrast imaging campaigns, will push the detectability limit of protoplanets.
Felipe Alarcón +2 more
doaj +1 more source
Orbital Evolution of Moons in Weakly Accreting Circumplanetary Disks
, 2017 We investigate the formation of hot and massive circumplanetary disks (CPDs) and the orbital evolution of satellites formed in these disks. Because of the comparatively small size-scale of the sub-disk, quick magnetic diffusion prevents the ...
Fujii, Yuri I. +3 more
core +1 more source
A deeply embedded young protoplanetary disk around L1489 IRS observed by the submillimeter array [PDF]
, 2007 Circumstellar disks are expected to form early in the process that leads to the formation of a young star, during the collapse of the dense molecular cloud core.
A. Crapsi +45 more
core +1 more source
Meteoritics &Planetary Science, Volume 60, Issue 2, Page 190-205, February 2025.Abstract The alignment of non‐spherical “flattened” chondrules into a petrofabric is a common feature of hydrated carbonaceous chondrite meteorites. This texture can form as a result of impacts at peak shock pressures exceeding 10 GPa. However, many carbonaceous chondrites with petrofabrics are unshocked.
Laura E. Jenkins +6 more
wiley +1 more source
CI Traces the Disk Atmosphere in the IM Lup Protoplanetary Disk
The Astrophysical Journal Letters, 2023 The central star and its energetic radiation fields play a vital role in setting the vertical and radial chemical structure of planet-forming disks.
Charles J. Law +4 more
doaj +1 more source
Self-Sustained Ionization and Vanishing Dead Zones in Protoplanetary Disks
, 2005 We analyze the ionization state of the magnetohydrodynamically turbulent protoplanetary disks and propose a new mechanism of sustaining ionization. First, we show that in the quasi-steady state of turbulence driven by magnetorotational instability in a ...
Inutsuka, Shu-ichiro, Sano, Takayoshi
core +1 more source
Meteoritics &Planetary Science, Volume 60, Issue 2, Page 247-272, February 2025.Abstract Calcium‐aluminum‐rich inclusions (CAIs) are the first objects that formed in the solar accretion disk and therefore provide valuable insights into the evolution of the early solar system. A long‐standing question regarding this earliest formative period relates to the storage of CAIs in the 1–4 Myr time period between their formation and later
P. Ghaznavi +3 more
wiley +1 more source