N ano SIMS: Technical aspects and applications in cosmochemistry and biological geochemistry
The N ano SIMS ion probe is a new‐generation SIMS instrument, characterised by superior
spatial resolution, high sensitivity and multi‐collection capability. Isotope studies of certain …
spatial resolution, high sensitivity and multi‐collection capability. Isotope studies of certain …
Nitrogen isotope variations in the Solar System
The relative proportion of the two isotopes of nitrogen, 14N and 15N, varies dramatically
across the Solar System, despite little variation on Earth. NASA's Genesis mission directly …
across the Solar System, despite little variation on Earth. NASA's Genesis mission directly …
Origin of nucleosynthetic isotope heterogeneity in the solar protoplanetary disk
Stable-isotope variations exist among inner solar system solids, planets, and asteroids, but
their importance is not understood. We report correlated, mass-independent variations of …
their importance is not understood. We report correlated, mass-independent variations of …
A 15N-Poor Isotopic Composition for the Solar System As Shown by Genesis Solar Wind Samples
The Genesis mission sampled solar wind ions to document the elemental and isotopic
compositions of the Sun and, by inference, of the protosolar nebula. Nitrogen was a key …
compositions of the Sun and, by inference, of the protosolar nebula. Nitrogen was a key …
Flux and composition of interstellar dust at Saturn from Cassini's Cosmic Dust Analyzer
Interstellar dust (ISD) is the condensed phase of the interstellar medium. In situ data from the
Cosmic Dust Analyzer on board the Cassini spacecraft reveal that the Saturnian system is …
Cosmic Dust Analyzer on board the Cassini spacecraft reveal that the Saturnian system is …
High-resolution high-sensitivity elemental imaging by secondary ion mass spectrometry: from traditional 2D and 3D imaging to correlative microscopy
Secondary ion mass spectrometry (SIMS) constitutes an extremely sensitive technique for
imaging surfaces in 2D and 3D. Apart from its excellent sensitivity and high lateral resolution …
imaging surfaces in 2D and 3D. Apart from its excellent sensitivity and high lateral resolution …
Aluminum-, calcium-and titanium-rich oxide stardust in ordinary chondrite meteorites
ABSTRACT We report O-, Al-Mg-, K-, Ca-, and Ti-isotopic data for a total of 96 presolar oxide
grains found in residues of several unequilibrated ordinary chondrite meteorites. Identified …
grains found in residues of several unequilibrated ordinary chondrite meteorites. Identified …
The NC-CC isotope dichotomy: Implications for the chemical and isotopic evolution of the early Solar System
Understanding the formation of our planetary system requires identification of the materials
from which it originated and the accretion processes that produced the planets. The …
from which it originated and the accretion processes that produced the planets. The …
Presolar stardust in asteroid Ryugu
We have conducted a NanoSIMS-based search for presolar material in samples recently
returned from C-type asteroid Ryugu as part of JAXA's Hayabusa2 mission. We report the …
returned from C-type asteroid Ryugu as part of JAXA's Hayabusa2 mission. We report the …
Coordinated analyses of presolar grains in the Allan Hills 77307 and Queen Elizabeth Range 99177 meteorites
We report the identification of presolar silicates (∼ 177 ppm), presolar oxides (∼ 11 ppm),
and one presolar SiO 2 grain in the Allan Hills (ALHA) 77307 chondrite. Three grains having …
and one presolar SiO 2 grain in the Allan Hills (ALHA) 77307 chondrite. Three grains having …