Results 61 to 70 of about 5,108 (182)
HNC in Protoplanetary Disks [PDF]
, 2016 The distributions and abundances of small organics in protoplanetary disks are potentially powerful probes of disk physics and chemistry. HNC is a common probe of dense interstellar regions and the target of this study.
Oberg, Karin +3 more
core +1 more source
The Astrophysical JournalThe inward drift of millimeter–centimeter sized pebbles in protoplanetary disks has become an important part of our current theories of planet formation and, more recently, planet composition as well.
Leon Trapman +18 more
doaj +1 more source
Small‐scale elemental abundance variations in Ryugu particles from touchdown 1
Meteoritics &Planetary Science, Volume 61, Issue 4, Page 580-599, April 2026.Abstract Ryugu materials closely resemble CI chondrites' mineralogical, chemical, and isotopic compositions; yet minor but resolvable differences in certain elemental abundances are evident. In this study, the bulk chemical compositions of eight individual Ryugu particles (1.5–4.3 mg) from the first touchdown site (TD1) were determined using triple ...
Karina López García +6 more
wiley +1 more source
Planet formation and disc dynamics in stellar clusters and misaligned binary systems [PDF]
, 2009 PhDIn this thesis I investigate the formation and dynamics of planets and protoplanetary discs, subject to external gravitational perturbations.
Fragner, Moritz Matthias
core
Petrography and mineral chemistry of Northeast Africa 053—A remnant of Martian crystal mush
Meteoritics &Planetary Science, Volume 61, Issue 4, Page 621-643, April 2026.Abstract In Earth's igneous systems, crystal mushes, crystal‐rich frameworks permeated by silicate melt, represent a common and fundamental stage in the evolution of magma bodies. However, whether crystal mushes occur within Martian igneous systems and play a comparable role is unknown. Here, we present a comprehensive petrography and mineral chemistry
Xhonatan Shehaj +2 more
wiley +1 more source
On the Dynamics of Protoplanetary Disks [PDF]
, 2018 Protoplanetary disks are disks of gas and dust orbiting young stars which form planetary systems. This thesis is devoted to understanding how gravitational interactions in different astrophysical situations effect the structure and dynamical evolution ...
Zanazzi, John Jacob
core +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
Meteoritics &Planetary Science, Volume 61, Issue 4, Page 720-738, April 2026.Abstract Mechanisms for metal core formation in rocky planetesimals and planetary embryos remain poorly constrained, in part due to complexities arising from immiscibility in core‐forming liquids at low pressures. To assess the pressure dependence of immiscibility and its role in protoplanetary differentiation, we performed experiments at 3 and 5 GPa ...
Geoffrey David Bromiley +2 more
wiley +1 more source
Spirals in protoplanetary disks [PDF]
, 2016 Review on the different processes able to launch spiral arms in protoplanetary disks: gravitational instabilities, planet-disk interaction, shadows, stellar fly ...
Christiaens, Valentin
core
Confined Chemistry in Space: Zeolite‐Supported Fe13 Nanoclusters Modulate CS Reactivity
Small Structures, Volume 7, Issue 3, March 2026.The study explores how an Fe13 cluster confined in chabazite reshapes the reaction of CS and H2 under astrochemical conditions. Confinement promotes C–S bond cleavage over hydrogenation, directing chemistry toward CH4 and H2S formation. Additional CS enables CS2 and C2 species. Microkinetic analysis identifies protoplanetary environments where zeolites
Gerard Pareras, Albert Rimola
wiley +1 more source