Search Results - "Hopp, Timo"

The Moon-forming impactor Theia originated from the inner Solar System.

Authors: Hopp, Timo Dauphas, Nicolas Boyet, Maud et al.

Source: Science. 11/20/2025, Vol. 390 Issue 6775, p819-823. 5p.

Iron isotope anomalies and the origin of the Earth.

Authors: Hopp, Timo Tian, Shengyu Kleine, Thorsten

Source: ICARUS. Jul2026, Vol. 453, pN.PAG-N.PAG. 1p.

In situ⁸⁷Rb–⁸⁷Sr analyses of terrestrial and extraterrestrial samples by LA-MC-ICP-MS/MS with double Wien filter and collision cell technologies.

Authors: Dauphas, Nicolas Hopp, Timo Craig, Grant et al.

Source: JAAS (Journal of Analytical Atomic Spectrometry). Nov2022, Vol. 37 Issue 11, p2420-2441. 22p.

Subjects: Laser ablation inductively coupled plasma mass spectrometry, Radioactive decay

Geographic Terms: Vienna (Austria), Durango (Mexico : State)

Tellurium isotope cosmochemistry: Implications for volatile fractionation in chondrite parent bodies and origin of the late veneer.

Authors: Hellmann, Jan L. Hopp, Timo Burkhardt, Christoph et al.

Source: Geochimica et Cosmochimica Acta. Sep2021, Vol. 309, p313-328. 16p.

Subjects: Tellurium, Isotopes, Siderophile elements, Nucleosynthesis, Stable isotopes, Chondrites, Cosmochemistry, Chemical processes

Ryugu's nucleosynthetic heritage from the outskirts of the Solar System.

Authors: Hopp, Timo Dauphas, Nicolas Yoshinari Abe et al.

Source: Science Advances. 11/18/2022, Vol. 8 Issue 46, p1-9. 9p.

Ruthenium isotopic fractionation in primitive achondrites: Clues to the early stages of planetesimal melting.

Authors: Hopp, Timo Kleine, Thorsten

Source: Geochimica et Cosmochimica Acta. Jun2021, Vol. 302, p46-60. 15p.

Subjects: Achondrites, Isotopic fractionation, Iron meteorites, Planetesimals, Ruthenium, Melting

Nature of late accretion to Earth inferred from mass-dependent Ru isotopic compositions of chondrites and mantle peridotites.

Authors: Hopp, Timo Kleine, Thorsten

Source: Earth & Planetary Science Letters. Jul2018, Vol. 494, p50-59. 10p.

Subjects: Chondrites, Ruthenium isotopes, Peridotite, Earth's mantle, Siderophile elements, Isotopic fractionation

Ruthenium isotope fractionation in protoplanetary cores.

Authors: Hopp, Timo Fischer-Gödde, Mario Kleine, Thorsten

Source: Geochimica et Cosmochimica Acta. Feb2018, Vol. 223, p75-89. 15p.

Subjects: Ruthenium isotopes, Iron meteorites, Crystallization, Chemical purification, Siderophile elements

Ruthenium stable isotope measurements by double spike MC-ICPMS.

Authors: Hopp, Timo Fischer-Gödde, Mario Kleine, Thorsten

Source: JAAS (Journal of Analytical Atomic Spectrometry). Jul2016, Vol. 31 Issue 7, p1515-1526. 12p.

Subjects: Ruthenium isotopes, Chromatographic analysis, Mass spectrometry, Field-flow fractionation, Peptide fractionation

Chemical composition and iron oxidation state of amorphous matrix silicates in the carbonaceous chondrite Acfer 094.

Authors: HOPP, Timo VOLLMER, Christian

Source: Meteoritics & Planetary Science. Feb2018, Vol. 53 Issue 2, p153-166. 14p.

Bayesian inference on the isotopic building blocks of Mars and Earth.

Authors: Dauphas, Nicolas Hopp, Timo Nesvorný, David

Source: ICARUS. Jan2024, Vol. 408, pN.PAG-N.PAG. 1p.

Isotopic evidence for a common parent body of IIG and IIAB iron meteorites.

Authors: Anand, Aryavart Spitzer, Fridolin Hopp, Timo et al.

Source: Geochimica et Cosmochimica Acta. Oct2024, Vol. 382, p118-127. 10p.

Subjects: Iron meteorites, Liquid iron, Meteorites, Isotopes, Melting

Earth's accretion inferred from iron isotopic anomalies of supernova nuclear statistical equilibrium origin.

Authors: Hopp, Timo Dauphas, Nicolas Spitzer, Fridolin et al.

Source: Earth & Planetary Science Letters. Jan2022, Vol. 577, pN.PAG-N.PAG. 1p.

Subjects: Iron isotopes, Statistical equilibrium, Iron meteorites, Earth's mantle, Type I supernovae, Inner planets, Martian meteorites

Experimental investigation of Ru isotope fractionation between metal, silicate and sulfide melts.

Authors: Grützner, Tobias Hopp, Timo Berndt, Jasper et al.

Source: Chemical Geology. Oct2021, Vol. 580, pN.PAG-N.PAG. 1p.

Subjects: Isotopic fractionation, Siderophile elements, Earth's core, Liquid metals, Metal sulfides, Metals, Tin

Origin of volatile element depletion among carbonaceous chondrites.

Authors: Hellmann, Jan L. Hopp, Timo Burkhardt, Christoph et al.

Source: Earth & Planetary Science Letters. Nov2020, Vol. 549, pN.PAG-N.PAG. 1p.

Subjects: Nucleosynthesis, Chondrules, Chondrites, Accretion disks

Heterogeneous accretion of Earth inferred from Mo-Ru isotope systematics.

Authors: Hopp, Timo Budde, Gerrit Kleine, Thorsten

Source: Earth & Planetary Science Letters. Mar2020, Vol. 534, pN.PAG-N.PAG. 1p.

Subjects: Meteorites, Carbonaceous chondrites (Meteorites), Accretion (Astrophysics), Earth's mantle, Isotopes, Chemical models, Construction materials

Chromatography purification of Rb for accurate isotopic analysis by MC-ICPMS: a comparison between AMP-PAN, cation-exchange, and Sr resins.

Authors: Nie, Nicole X. Dauphas, Nicolas Hopp, Timo et al.

Source: JAAS (Journal of Analytical Atomic Spectrometry). Dec2021, Vol. 36 Issue 12, p2588-2602. 15p.

Subjects: Isotopic analysis, Rubidium, Pressure drop (Fluid dynamics), Water-rock interaction, Geochemical cycles, Alkali metals

Zivil oder militärisch? Radioaktive Freisetzung aufgeklärt: Umweltforschung.

Authors: Steinhauser, Georg Zok, Dorian Hopp, Timo et al.

Source: Physik in Unserer Zeit. Sep2020, Vol. 51 Issue 5, p218-219. 2p.

Lunar soil record of atmosphere loss over eons.

Authors: Nie, Nicole X. Dauphas, Nicolas Zhang, Zhe J. et al.

Source: Science Advances. 8/2/2024, Vol. 10 Issue 31, p1-8. 8p.

Investigation of the cation valency and conductivity of antimony-substituted ceria.

Authors: Neuhaus, Kerstin Gerke, Birgit Niehaus, Oliver et al.

Source: Journal of Solid State Electrochemistry. Aug2016, Vol. 20 Issue 8, p2295-2304. 10p.