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arXiv · 2104.11744

"In-System" Fission-Events: An Insight into Puzzles of Exoplanets and Stars?

Elizabeth P. Tito·Vadim I. Pavlov
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Abstract

In expansion of our recent proposal (Physics, 2020, 2, 213-276) that the solar system's evolution occurred in two stages -- during the first stage, the gaseous giants formed (via disk instability), and, during the second stage (caused by an encounter with a particular stellar-object leading to "in-system" fission-driven nucleogenesis), the terrestrial planets formed (via accretion) -- we emphasize here that the mechanism of formation of such stellar-objects is generally universal and therefore encounters of such objects with stellar-systems may have occurred elsewhere across galaxies. If so, their aftereffects may perhaps be observed as puzzling features in the spectra of individual stars (such as idiosyncratic chemical enrichments) and/or in the structures of exoplanetary systems (such as unusually high planet densities or short orbital periods). This paper reviews and reinterprets astronomical data within the "fission-events framework." Classification of stellar systems as "pristine" or "impacted" is offered.

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Elizabeth P. Tito, Vadim I. Pavlov. 2021-04-23. "In-System" Fission-Events: An Insight into Puzzles of Exoplanets and Stars?. https://doi.org/10.3390/universe7050118

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