Results 31 to 40 of about 838,568 (119)

Injection of Short-Lived Radionuclides into the Early Solar System from a Faint Supernova with Mixing-Fallback [PDF]

open access: yes, 2008
Several short-lived radionuclides (SLRs) were present in the early solar system, some of which should have formed just prior to or soon after the solar system formation. Stellar nucleosynthesis has been proposed as the mechanism for production of SLRs in the solar system, but no appropriate stellar source has been found to explain the abundances of all
arxiv   +1 more source

The Sun Remains Relatively Refractory Depleted: Elemental Abundances for 17,412 Gaia RVS Solar Analogs and 50 Planet Hosts

open access: yesThe Astrophysical Journal
The element abundances of stars, particularly the refractory elements (e.g., Fe, Si, and Mg), play an important role in connecting stars to their planets. Most Sun-like stars do not have refractory abundance measurements since obtaining a large sample of
Rayna Rampalli   +4 more
doaj   +1 more source

The BANANA Project. VII. High Eccentricity Predicts Spin–Orbit Misalignment in Binaries

open access: yesThe Astrophysical Journal
The degree of spin–orbit alignment in a population of binary stars can be determined from measurements of their orbital inclinations and rotational broadening of their spectral lines.
Marcus L. Marcussen   +5 more
doaj   +1 more source

THE WAVE PRINCIPLE OF THE DISTRIBUTION OF SUBSTANCE IN SOLAR SYSTEM

open access: yesOdessa Astronomical Publications, 2017
The wave principle of planet system formation and systems of satellites of Jupiter, Saturn and Uranus in the Solar system are considered.
V. A. Smirnov
doaj   +1 more source

Distribution of s-, r-, and p-process Nuclides in the Early Solar System Inferred from Sr Isotope Anomalies in Meteorites

open access: yesThe Astrophysical Journal Letters, 2023
Nucleosynthetic isotope anomalies in meteorites allow distinguishing between the noncarbonaceous (NC) and carbonaceous (CC) meteorite reservoirs and show that correlated isotope anomalies exist in both reservoirs.
Jonas M. Schneider   +2 more
doaj   +1 more source

Implications of Differentiated Late Accretion for the Volatile Inventory of the Bulk Silicate Earth

open access: yesThe Planetary Science Journal
Earth is believed to have acquired its highly siderophile element (HSE) inventory through the late accretion of ∼0.3%–0.5% of its mass in chondrite-like materials, following the main stage of its growth. Late accretion, particularly if it originated from
Damanveer S. Grewal, Varun Manilal
doaj   +1 more source

Meteorites and cosmic dust: Interstellar heritage and nebular processes in the early solar system

open access: yesEPJ Web of Conferences, 2012
Small solar system bodies like asteroids and comets have escaped planetary accretion. They are the oldest and best preserved witnesses of the formation of the solar system.
Engrand C.
doaj   +1 more source

What Can Meteorites Tell Us About the Formation of Jupiter?

open access: yesAGU Advances, 2021
Gas giants like Jupiter are a fundamental component of planetary systems, but how they formed has been uncertain. Here we discuss how paleomagnetic records in meteorites of the solar nebula may tell us about Jupiter's final growth stage.
Benjamin P. Weiss, William F. Bottke
doaj   +1 more source

Chemical evolution of 244Pu in the solar vicinity and its implication for the properties of r-process production [PDF]

open access: yes, 2017
Meteoritic abundances of r-process elements are analyzed to deduce the history of chemical enrichment by r-process from the beginning of disk formation to the present time in the solar vicinity, by combining the abundance information from short-lived radioactive nuclei such as 244Pu with that from stable r-process nuclei such as Eu.
arxiv   +1 more source

Silica-rich volcanism in the early solar system dated at 4.565 Ga

open access: yesNature Communications, 2018
Achondritic meteorites can record volcanism and crust formation on planetesimals in the early Solar System. Here, the authors date the Northwest Africa 11119 meteorite with an Al-Mg age of 4564.8 ± 0.3 Ma indicating that this is the earliest evidence of ...
Poorna Srinivasan   +7 more
doaj   +1 more source

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