Results 41 to 50 of about 838,568 (119)
Organic Matter in Cometary Environments
Life, 2021 Comets contain primitive material leftover from the formation of the Solar System, making studies of their composition important for understanding the formation of volatile material in the early Solar System.
Adam J. McKay, Nathan X. Roth
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The Astronomical JournalIn the Nice model of Solar System formation, Uranus and Neptune undergo an orbital upheaval, sweeping through a planetesimal disk. The region of the disk from which material is accreted by the ice giants during this phase of their evolution has not ...
Eva Zlimen +2 more
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THE PRECAMBRIAN HISTORY OF THE ORIGIN AND EVOLUTION OF THE SOLAR SYSTEM AND EARTH. PART 1
Геодинамика и тектонофизика, 2015 The paper provides a review of early stages of development the Solar System and the geological history of Earth with reference to the latest data on the origin of the Solar System and the formation of the first continental rocks and results of studies of
M. I. Kuz’min
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Forming Mercury from Excited Initial Conditions
The Astrophysical JournalMercury is notoriously difficult to form in Solar System simulations, due to its small mass and iron-rich composition. Smooth particle hydrodynamics simulations of collisions have found that a Mercury-like body could be formed by one or multiple giant ...
Jennifer Scora +3 more
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Research Paper: Shocks and Energy Transfer in Solar Atmospheric Jets [PDF]
فیزیک کاربردی ایرانThe aim is to study nonlinear wave dynamics in solar spicules and jets. The life of jets in the context of Alfven wave dynamics is focused. Here, further insight into the solar atmospheric effects together with initial conditions on the dynamics of ...
Zohre Hashemipour +2 more
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Origin of Low-26Al/27Al Corundum/Hibonite Inclusions in Meteorites
The Astrophysical Journal, 2023 Most meteoritic calcium-rich, aluminum-rich inclusions formed from a reservoir with ^26 Al/ ^27 Al ≈ 5 × 10 ^−5 , but some record lower ${({}^{26}\mathrm{Al}/{}^{27}\mathrm{Al})}_{0}$ , demanding they sampled a reservoir without live ^26 Al.
Steven J. Desch +7 more
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Nebula-Relay Hypothesis: Primitive Life in Nebula and Origin of Life on Earth [PDF]
Acta Astronomica Sinica,2021,62(3):28, 2019 A modified version of panspermia theory, named Nebula-Relay hypothesis or local panspermia, is introduced to explain the origin of life on Earth. Primitive life, acting as the seeds of life on Earth, originated at pre-solar epoch through physicochemical processes and then filled in the pre-solar nebula after the death of pre-solar star.
arxiv +1 more source
The Effects of Early Collisional Evolution on Amorphous Water Ice Bodies
The Planetary Science Journal, 2023 Conditions in the outer protoplanetary disk during solar system formation were thought to be favorable for the formation of amorphous water ice (AWI), a glassy phase of water ice.
Jordan K. Steckloff +2 more
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Solar Elemental Abundances [PDF]
arXiv, 2019 Review of the history of solar system elemental abundances with a new assessment of elemental and isotopic abundances from CI-chondrites and solar data. Solar elemental abundances, or solar system elemental abundances refer to the complement of chemical elements in the entire solar system.
arxiv
Did the Solar System form in a sequential triggered star formation event? [PDF]
, 2015 The presence and abundance of the short-lived radioisotopes (SLRs) $^{26}$Al and $^{60}$Fe during the formation of the Solar System is difficult to explain unless the Sun formed in the vicinity of one or more massive star(s) that exploded as supernovae. Two different scenarios have been proposed to explain the delivery of SLRs to the protosolar nebula:
arxiv +1 more source