Results 61 to 70 of about 2,749,091 (142)
Shrinking orbits in hierarchical quadruple star systems [PDF]
, 2018 The distribution of the inner orbital periods of solar-type main-sequence (MS) triple star systems is known to be peaked at a few days, and this has been attributed to tidal evolution combined with eccentricity excitation due to Lidov-Kozai oscillations. Solar-type MS quadruple star systems also show peaks in their inner orbital period distributions at
arxiv +1 more source
The chemical makeup of our solar system is a reflection of Galactic chemical evolution in the local interstellar medium (ISM) over the past ~9 Ga before the formation of the solar system. Although the incorporated ISM dust was mostly destroyed during the solar system formation, a small fraction of the ISM dust, known as presolar grains, is preserved in
arxiv +1 more source
Conundrums and constraints concerning the formation of our solar system -- An alternative view [PDF]
arXiv, 2019 We have proposed an alternative model for the formation of our solar system that does not predict any mean-motion resonant interactions, planetary migrations, or self-gravitating instabilities in the very early isothermal solar nebula and before the protosun has formed.
arxiv
Meteorites and Planet Formation [PDF]
arXivMeteorites are a remarkable resource. They capture the imagination of people worldwide with their spectacular entry through Earth's atmosphere as fireballs, and their exotic character of being pieces of other worlds. Scientifically, they are critical to interpreting the early stages of formation of the Solar System, as well as the geological evolution ...
arxiv
Cloud formation in giant planets [PDF]
arXiv, 2007 We calculate the formation of dust clouds in atmospheres of giant gas-planets. The chemical structure and the evolution of the grain size distribution in the dust cloud layer is discussed based on a consistent treatment of seed formation, growth/evaporation and gravitational settling. Future developments are shortly addressed.
arxiv
Observational Characteristics of Electron Distributions in the Martian Induced Magnetotail
Geophysical Research LettersMars's magnetotail represents a unique case within the solar system, embodying both intrinsic and induced magnetic fields. Yet, the electron dynamics within this region have remained largely unexplored. Utilizing nine years of electron and magnetic field
Chi Zhang +10 more
doaj +1 more source
Minor planets, asteroids, comets and interplanetary dust within 30 au [PDF]
arXivOur Solar System includes the Sun, eight major planets and their moons, along with numerous asteroids, comets, and dust particles, collectively known as the small Solar System bodies. Small bodies are relics from the birth of the Solar System and offer valuable insights into planetary formation and the origins of life.
arxiv
The Planetary Science JournalErg Chech 002 (EC 002), an andesitic meteorite, has been dated to be the oldest magmatic rock in the solar system. However, controversy has arisen due to inconsistent dating results and isotopic compositions in previous studies, which complicates ...
Bing Yang +5 more
doaj +1 more source
The Astronomical JournalOne of the outstanding goals of the planetary science community is to measure the present-day atmospheric composition of planets and link this back to formation.
Stefan Pelletier +13 more
doaj +1 more source
Evolution of symmetry index in minerals
Geoscience Data JournalCrystal structures of minerals are defined by a specific atomic arrangement within the unit‐cell, which follows the laws of symmetry specific to each crystal system.
Marko Bermanec +4 more
doaj +1 more source