Results 71 to 80 of about 73,704 (164)
Ryugu reference project: Recommendations from the measurement definition team
Meteoritics &Planetary Science, Volume 61, Issue 5, Page 819-848, May 2026.Abstract Sample return missions play a significant role in planetary science by providing pristine extraterrestrial materials. JAXA's Hayabusa2 and NASA's OSIRIS‐REx missions have returned samples from the C‐type asteroids Ryugu and Bennu, respectively. The chemical and mineralogical compositions of these samples closely resemble those of CI chondrites,
Tetsuya Yokoyama +16 more
wiley +1 more source
Tracing the evolution of protoplanetary disks [PDF]
, 2014 This thesis presents new insights of protoplanetary disk evolution. It focuses on the characterisation of several elements in the earliest phases of planet formation in protoplanetary disks: the connection between the SED and disk gaps (Chapters 2, 3 and
Maaskant, K.M.
core
2026 Leonard Medal for Marc Chaussidon
Meteoritics &Planetary Science, Volume 61, Issue S1, Page S552-S555, August 2026.
François Robert
wiley +1 more source
Aqueous alteration in C2‐ung Bells through the analysis of carbonates – Does a CR origin ring true?
Meteoritics &Planetary Science, Volume 61, Issue 5, Page 927-941, May 2026.Abstract Bells is an ungrouped carbonaceous chondrite that has in recent years been proposed as a CR‐an. This link to CR chondrites has previously been identified through the analysis of anhydrous silicates, for example, oxygen isotopic compositions of olivine (Marrocchi et al., 2023).
L. J. Riches +4 more
wiley +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 +2 more sources
From Disks to Planets: New Observations
, 2005 Magnetic fields may regulate the evolution of protoplanetary disks by providing mechanisms that remove angular momentum from the gas, enabling most of it to be accreted.
Wardle, Mark +2 more
core
, 2014 Infrared water line emission from protoplanetary disks, recently observed by the Spitzer and Herschel space telescopes, is thought to trace the surface layer of the inner to outer regions of the disks.
Walsh, C. +3 more
core +1 more source
Journal of Physical Organic Chemistry, Volume 39, Issue 4, April 2026.New calculations have been applied to the pyrolysis of pyrrole under shock‐tube conditions and to the radical‐radical reaction between allyl and •CN at low temperature and pressure, using the same mechanistic scheme for both. ABSTRACT The pyrolysis of pyrrole has previously been studied in shock‐tube experiments and in jet‐stirred reactors. The results
Barry K. Carpenter
wiley +1 more source
Photoevaporation of Protoplanetary Disks
Proceedings of the International Astronomical Union, 2020 AbstractPhotoelectric effect of dust grains by UV radiation is an important process for disk heating, but as a disk evolves, the amount of dust grains decreases. Photoeaporation is a disk dispersal process, which is caused by high-energy radiation. We perform a set of photoevaporation simulations solving hydrodynamics with radiative transfer and non ...
Ayano Komaki +2 more
openaire +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