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- W4315881154 abstract "Many potential mechanisms for delivering planetary debris to within a few Roche radii of white dwarfs rely on gravitational scattering events that feature perturbers which are giant planets or terrestrial planets. However, the population of these planets orbiting white dwarfs is still unknown, and for a substantial fraction of white dwarfs the largest planetary survivors of stellar evolution may be sub-terrestrial mass minor planets. Here, we attempt to identify the smallest mass perturbers that could pollute white dwarfs. Through computationally expensive numerical simulations of both unstable and stable configurations of minor planets, we find that this critical lower bound equals approximately one Luna mass. Further, we find that as this mass limit is approached from above, the typical cooling age at which white dwarf pollution occurs increases. Consequently, there is a two order-of-magnitude range of perturber masses between Earth and its moon that has remained largely unexplored in white dwarf pollution studies, despite the potential formation of thousands of such Luna-sized objects in these systems." @default.
- W4315881154 created "2023-01-13" @default.
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- W4315881154 date "2023-01-10" @default.
- W4315881154 modified "2023-09-26" @default.
- W4315881154 title "The smallest planetary drivers of white dwarf pollution" @default.
- W4315881154 doi "https://doi.org/10.48550/arxiv.2301.04160" @default.
- W4315881154 hasPublicationYear "2023" @default.
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