Related Experiment Video
Updated: Jul 22, 2026

Improved Heterojunction Quality in Cu2O-based Solar Cells Through the Optimization of Atmospheric Pressure Spatial Atomic Layer Deposited
Zn1-xMgxO
Published on: July 31, 2016
Molecular cloud origin for the oxygen isotope heterogeneity in the solar system
Hisayoshi Yurimoto1, Kiyoshi Kuramoto
1Department of Earth and Planetary Sciences, Tokyo Institute of Technology, Meguro, Tokyo 152-8551, Japan. yuri@geo.titech.ac.jp
Abstract:
Meteorites and their components have anomalous oxygen isotopic compositions characterized by large variations in 18O/16O and 17O/16O ratios. On the basis of recent observations of star-forming regions and models of accreting protoplanetary disks, we suggest that these variations may originate in a parent molecular cloud by ultraviolet photodissociation processes. Materials with anomalous isotopic compositions were then transported into the solar nebula by icy dust grains during the collapse of the cloud. The icy dust grains drifted toward the Sun in the disk, and their subsequent evaporation resulted in the 17O- and 18O-enrichment of the inner disk gas.
More Related Videos
07:24Combustion Chemistry of Fuels: Quantitative Speciation Data Obtained from an Atmospheric High-temperature Flow Reactor with Coupled Molecular-beam Mass Spectrometer
Published on: February 19, 2018
12:11Computation of Atmospheric Concentrations of Molecular Clusters from ab initio Thermochemistry
Published on: April 8, 2020
Related Concept Videos
Atomic Emission Spectroscopy: Overview
Atomic Emission Spectroscopy: Instrumentation
Atomic Emission Spectroscopy: Interference
Atomic Emission Spectroscopy: Lab
Oxygenic Photosynthesis
Origin of Photosynthesis