Results 41 to 50 of about 21,151,583 (337)
Fly-by encounters between two planetary systems I: Solar system analogues [PDF]
Monthly notices of the Royal Astronomical Society, 2019 Stars formed in clusters can encounter other stars at close distances. In typical open clusters in the Solar neighbourhood containing hundreds or thousands of member stars, 10–20 per cent of Solar-mass member stars are expected to encounter another star ...
Daohai Li, A. Mustill, M. Davies
semanticscholar +1 more source
Planetary Nebulae as Sources of Chemical Enrichment of the Galaxy
Frontiers in Astronomy and Space Sciences, 2022 During the late asymptotic giant branch (AGB) phase of stellar evolution, the element carbon is created through the triple-α nuclear reaction. This is followed by the synthesis of other heavy elements via neutron capture in the core and the dredge-up of ...
Sun Kwok, Sun Kwok
doaj +1 more source
Planetary systems in a star cluster I: the Solar system scenario [PDF]
Monthly notices of the Royal Astronomical Society, 2019 Young stars are mostly found in dense stellar environments, and even our own Solar system may have formed in a star cluster. Here, we numerically explore the evolution of planetary systems similar to our own Solar system in star clusters.
Francesco Flammini Dotti +3 more
semanticscholar +1 more source
Planetary-Code-Collection: Thermal and Ice Evolution Models for Planetary Surfaces 1.0.1
, 2015 <p>Thermal and Ice Evolution Models for Planetary Surfaces</p ...
Norbert Schörghofer
core +1 more source
Aquatic deoxygenation as a planetary boundary and key regulator of Earth system stability
Nature Ecology & EvolutionPlanetary boundaries represent thresholds in major Earth system processes that are sensitive to human activity and control global-scale habitability and stability.
K. Rose +11 more
semanticscholar +1 more source
Geophysical evolution of planetary interiors and surfaces : Moon & Mars [PDF]
, 2013 Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 2013.Cataloged from PDF version of thesis.Includes bibliographical references (pages 127-138).The interiors and surfaces of the terrestrial ...
Evans, Alexander Joseph
core
Characterization of the key membrane protein cytochrome Cyc2 from Ghiorsea bivora
FEBS Open Bio, EarlyView.This study reports the first detailed biochemical analysis of Cyc2TAG1_1, a cytochrome protein involved in microbial iron oxidation. We produced and purified this enzyme in E. coli, then measured its iron‐oxidizing efficiency, and characterized its electrical and structural properties.
Josiane Azizi +6 more
wiley +1 more source
The Astrophysical JournalExploring low-velocity collisions is crucial for unraveling intricate processes in planetary formation, particularly the bouncing barrier that impedes the aggregation of dust into sizable planetesimals.
Lei Lei +12 more
doaj +1 more source
microRNA‐7‐5p and α‐Synuclein SAA Predict Parkinson's Disease Phenoconversion
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Corroborate blood neuron‐derived extracellular vesicle (NDEV) alpha‐synuclein (αSyn), the CSF αSyn seed amplification assay (αSyn‐SAA), and blood microRNA‐7‐5p (miR‐7‐5p) as markers for Parkinson's disease (PD) phenoconversion and determine if combining these markers would help select subjects who would be more likely to phenoconvert.
Shayan Zadegan +4 more
wiley +1 more source
Ringed versus Ringless Worlds: How Poynting–Robertson Drag Shapes Rings across the Solar System
The Astrophysical Journal LettersPlanetary rings are not only ubiquitous around the giant planets in the outer solar system, but have also been discovered around several small distant bodies. In contrast, no rings have been observed around any inner solar system objects.
Ryuki Hyodo, Shigeru Ida
doaj +1 more source