Results 101 to 110 of about 425,590 (288)
A Survey of CH3CN and HC3N in Protoplanetary Disks [PDF]
, 2018 The organic content of protoplanetary disks sets the initial compositions of planets and comets, thereby influencing subsequent chemistry that is possible in nascent planetary systems.
J. Bergner +4 more
semanticscholar +1 more source
Meteoritics &Planetary Science, Volume 60, Issue 3, Page 544-569, March 2025.Abstract Refractory inclusions (RIs) in chondrites are widely used as tracers of early solar system formation conditions. In the context of sample‐return missions, a non‐destructive and non‐invasive analytical tool that can rapidly detect and characterize RIs in space samples during their early phase of study is highly needed.
Jean Charlier +4 more
wiley +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
An Analytical Model of Radial Dust Trapping in Protoplanetary Disks [PDF]
Astrophysical Journal, 2019 We study dust concentration in axisymmetric gas rings in protoplanetary disks. Given the gas surface density, we derived an analytical total dust surface density by taking into account the differential concentration of all grain sizes.
A. Sierra +5 more
semanticscholar +1 more source
Chemistry in Externally FUV-irradiated Disks in the Outskirts of the Orion Nebula Cluster
The Astrophysical JournalMost stars are born in stellar clusters, and their protoplanetary disks, which are the birthplaces of planets, can, therefore, be affected by the radiation of nearby massive stars.
Javiera K. Díaz-Berríos +6 more
doaj +1 more source
How Large Is a Disk—What Do Protoplanetary Disk Gas Sizes Really Mean?
The Astrophysical Journal, 2023 It remains unclear what mechanism is driving the evolution of protoplanetary disks. Direct detection of the main candidates, either turbulence driven by magnetorotational instabilities or magnetohydrodynamical disk winds, has proven difficult, leaving ...
Leon Trapman +3 more
doaj +1 more source
A deep search for H2D+ in protoplanetary disks [PDF]
, 2011 The structure in density and temperature of protoplanetary disks surrounding low-mass stars is not yet well known. The protoplanetary disks mid-planes are expected to be very cold and thus depleted in molecules in gas phase, especially CO. Recent observations of molecules at very low apparent temperature (~ 6 K) challenge this current picture of the ...
arxiv +1 more source
An ALMA Survey of Protoplanetary Disks in the σ Orionis Cluster [PDF]
, 2017 The σ Orionis cluster is important for studying protoplanetary disk evolution, as its intermediate age (∼3–5 Myr) is comparable to the median disk lifetime.
M. Ansdell +7 more
semanticscholar +1 more source
Abundant Refractory Sulfur in Protoplanetary Disks [PDF]
Astrophysical Journal, 2019 Sulfur is one of the most abundant elements in the universe, with important roles in astro-, geo-, and biochemistry. Its main reservoirs in planet-forming disks have previously eluded detection: gaseous molecules only account for
M. Kama +7 more
semanticscholar +1 more source
VORTEX MIGRATION IN PROTOPLANETARY DISKS [PDF]
The Astrophysical Journal, 2010 13 pages, 13 figures, accepted for publication in ...
Paardekooper, Sijme-Jan +2 more
openaire +9 more sources