Mass fractionation laws, mass-independent effects, and isotopic anomalies
Isotopic variations usually follow mass-dependent fractionation, meaning that the relative
variations in isotopic ratios scale with the difference in mass of the isotopes involved (eg …
variations in isotopic ratios scale with the difference in mass of the isotopes involved (eg …
The multifaceted planetesimal formation process
Accumulation of dust and ice particles into planetesimals is an important step in the planet
formation process. Planetesimals are the seeds of both terrestrial planets and the solid cores …
formation process. Planetesimals are the seeds of both terrestrial planets and the solid cores …
Short-lived nuclides in the early solar system: abundances, origins, and applications
AM Davis - Annual Review of Nuclear and Particle Science, 2022 - annualreviews.org
Several short-lived radionuclides (SLRs) were present in the first few million years of Solar
System history. Their abundances have profound impact on the timing of stellar …
System history. Their abundances have profound impact on the timing of stellar …
Early formation of planetary building blocks inferred from Pb isotopic ages of chondrules
The most abundant components of primitive meteorites (chondrites) are millimeter-sized
glassy spherical chondrules formed by transient melting events in the solar protoplanetary …
glassy spherical chondrules formed by transient melting events in the solar protoplanetary …
Isotopic evidence for primordial molecular cloud material in metal-rich carbonaceous chondrites
The short-lived 26Al radionuclide is thought to have been admixed into the initially 26Al-
poor protosolar molecular cloud before or contemporaneously with its collapse. Bulk inner …
poor protosolar molecular cloud before or contemporaneously with its collapse. Bulk inner …
Early accretion of protoplanets inferred from a reduced inner solar system 26Al inventory
The mechanisms and timescales of accretion of 10–1000 km sized planetesimals, the
building blocks of planets, are not yet well understood. With planetesimal melting …
building blocks of planets, are not yet well understood. With planetesimal melting …
Pb‐Pb dating of individual chondrules from the CBa chondrite Gujba: Assessment of the impact plume formation model
The CB chondrites are metal‐rich meteorites with characteristics that sharply distinguish
them from other chondrite groups. Their unusual chemical and petrologic features and a …
them from other chondrite groups. Their unusual chemical and petrologic features and a …
Number of stars in the Sun's birth cluster revisited
S Arakawa, E Kokubo - Astronomy & Astrophysics, 2023 - aanda.org
The Sun is thought to have been formed within a star cluster. The coexistence of 26 Al-rich
and 26 Al-poor calcium–aluminum-rich inclusions indicates that a direct injection of 26 Al …
and 26 Al-poor calcium–aluminum-rich inclusions indicates that a direct injection of 26 Al …
[HTML][HTML] Magnesium and 54Cr isotope compositions of carbonaceous chondrite chondrules–Insights into early disk processes
We report on the petrology, magnesium isotopes and mass-independent 54 Cr/52 Cr
compositions (μ 54 Cr) of 42 chondrules from CV (Vigarano and NWA 3118) and CR (NWA …
compositions (μ 54 Cr) of 42 chondrules from CV (Vigarano and NWA 3118) and CR (NWA …
Stellar origin of the 182Hf cosmochronometer and the presolar history of solar system matter
Among the short-lived radioactive nuclei inferred to be present in the early solar system via
meteoritic analyses, there are several heavier than iron whose stellar origin has been poorly …
meteoritic analyses, there are several heavier than iron whose stellar origin has been poorly …