Results 51 to 60 of about 73,704 (164)
Chemistry of Complex Organic Molecules in the V883 Ori Disk Revealed by ALMA Band 3 Observations
The Astronomical JournalComplex organic molecules (COMs) in protoplanetary disks are key to understanding the origin of volatiles in comets in our solar system, yet the chemistry of COMs in protoplanetary disks remains poorly understood.
Yoshihide Yamato +5 more
doaj +1 more source
The Astrophysical Journal, 2023 We present a three-dimensional, time-dependent MHD simulation of the short-term interaction between a protoplanetary disk and the stellar corona in a T Tauri system.
Ofer Cohen +6 more
doaj +1 more source
The Astronomical JournalClose binary systems present challenges to planet formation. As binary separations decrease, so do the occurrence rates of protoplanetary disks in young systems and planets in mature systems.
Benjamin M. Tofflemire +10 more
doaj +1 more source
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 7, July 2026.Abstract A central challenge in the paleomagnetic study of meteorites is to characterize their diverse remanence carriers. Here, we develop a machine‐learning assisted workflow that combines multi‐scale (mm to nm) and multi‐dimensional (2D‐3D) microscopy to build a comprehensive picture of ferromagnetic mineralogy in the C2 ungrouped carbonaceous ...
Richard J. Harrison +6 more
wiley +1 more source
Gas phase ion species released during grain collisions: Implications for protoplanetary disks
Astronomy & AstrophysicsGrain charging and gas ionization are important processes in protoplanetary disks. Both occur in mutual collisions between grains, as charge is exchanged between grain surfaces but also released into the surrounding gas as ions.
Hock P., Wurm G.
doaj +1 more source
Noble gases and nitrogen in material from asteroid Bennu
Meteoritics &Planetary Science, Volume 61, Issue 7, Page 1593-1609, July 2026.Abstract We report the elemental and isotopic abundances of all stable noble gases (helium, neon, argon, krypton, and xenon) in eight particles from asteroid Bennu returned by NASA's OSIRIS‐REx mission. We also report nitrogen abundances and isotopic ratios that were analyzed alongside neon and argon in four additional Bennu particles.
B. Marty +7 more
wiley +1 more source
The Evolution of Protoplanetary Disks: A Decade of HST Coronagraphy [PDF]
, 2007 This viewgraph presentation reviews the evolution of protoplanetary disks with the use Hubble Space Telescope coronagrphic imagery. The contents include: 1) Why Protoplanetary Disks in a Meeting on Exo-Planets and Debris Disks; 2) Protoplanetary Disks; 3)
Grady, C. A.
core
Physico-chemistry of protoplanetary disks
, 2005 International audienceWe present observations of various molecular lines arising from protoplanetary disks. These observations, obtained with the Plateau de Bure Interferometer are resolved both spatially and spectrally.
Guilloteau, S., Piétu, V., Dutrey, Anne
core +2 more sources
Radial drift in warped protoplanetary disks [PDF]
, 2023 The meter-size barrier in protoplanetary disks is a major challenge in planet formation, for which many solutions were suggested. One of the leading solutions is dust traps, that halt or slow the inward migration of dust particles. The source and profile
Rozner, Mor
core +1 more source
Zonal Flow and Self-regulating Mechanism in a Hydrodynamic Disk
The Astrophysical JournalThis study addresses key aspects of momentum transport in hydrodynamic disks, which is critical for understanding zonal flow generation and turbulence in compressible hydrodynamic disks.
Chang-Chun Chen +3 more
doaj +1 more source