Natural separation of two primordial planetary reservoirs in an expanding solar protoplanetary disk. [PDF]
Sci Adv, 2022 Meteorites display an isotopic composition dichotomy between noncarbonaceous (NC) and carbonaceous (CC) groups, indicating that planetesimal formation in the solar protoplanetary disk occurred in two distinct reservoirs.
Liu B +4 more
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Protoplanetary Disk Chemistry [PDF]
Annual Review of Astronomy and Astrophysics, 2023 Planets form in disks of gas and dust around young stars. The disk molecular reservoirs and their chemical evolution affect all aspects of planet formation, from the coagulation of dust grains into pebbles to the elemental and molecular compositions of ...
K. Oberg, S. Facchini, D. Anderson
semanticscholar +3 more sources
Isotopic evolution of the protoplanetary disk and the building blocks of Earth and the Moon. [PDF]
Nature, 2018 Nucleosynthetic isotope variability among Solar System objects is often used to probe the genetic relationship between meteorite groups and the rocky planets (Mercury, Venus, Earth and Mars), which, in turn, may provide insights into the building blocks ...
Schiller M, Bizzarro M, Fernandes VA.
europepmc +2 more sources
Chondrules as direct thermochemical sensors of solar protoplanetary disk gas. [PDF]
Sci Adv, 2018 Cathodoluminescence reveals structures indicative of gas-assisted epitaxial growth during chondrule melt crystallization. Chondrules, millimeter-sized igneous spherules comprising the major component of most chondritic meteorites, formed during the first
Libourel G, Portail M.
europepmc +2 more sources
Isotopic Dichotomy among Meteorites and Its Bearing on the Protoplanetary Disk. [PDF]
Astrophys J, 2018 Scott ERD, Krot AN, Sanders IS.
europepmc +2 more sources
Formation of the methyl cation by photochemistry in a protoplanetary disk [PDF]
Nature, 2023 Forty years ago, it was proposed that gas-phase organic chemistry in the interstellar medium can be initiated by the methyl cation CH_3^+ (refs. ^ 1 – 3 ), but so far it has not been observed outside the Solar System^ 4 , 5 . Alternative routes involving
O. Berné +55 more
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A JWST inventory of protoplanetary disk ices. The edge-on protoplanetary disk HH 48 NE, seen with the Ice Age ERS program [PDF]
Astronomy & Astrophysics, 2023 Ices are the main carriers of volatiles in protoplanetary disks and are crucial to our understanding of the chemistry that ultimately sets the organic composition of planets.
J. Sturm +26 more
semanticscholar +1 more source
MINDS. The Detection of 13CO2 with JWST-MIRI Indicates Abundant CO2 in a Protoplanetary Disk [PDF]
Astrophysical Journal Letters, 2022 We present JWST-MIRI Medium Resolution Spectrometer (MRS) spectra of the protoplanetary disk around the low-mass T Tauri star GW Lup from the MIRI mid-INfrared Disk Survey Guaranteed Time Observations program.
S. Grant +45 more
semanticscholar +1 more source
Evidence that the Hot Jupiter WASP-77 A b Formed Beyond Its Parent Protoplanetary Disk’s H2O Ice Line [PDF]
Astronomical Journal, 2022 Idealized protoplanetary disk and giant planet formation models have been interpreted to suggest that a giant planet’s atmospheric abundances can be used to infer its formation location in its parent protoplanetary disk.
Henrique M. Reggiani +4 more
semanticscholar +1 more source
2021 Census of Interstellar, Circumstellar, Extragalactic, Protoplanetary Disk, and Exoplanetary Molecules [PDF]
Astrophysical Journal Supplement Series, 2021 To date, 241 individual molecular species, composed of 19 different elements, have been detected in the interstellar and circumstellar medium by astronomical observations.
B. McGuire
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