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- W4384301642 startingPage "124" @default.
- W4384301642 abstract "Abstract Interstellar small bodies are unique probes into the histories of exoplanetary systems. One hypothesized class of interlopers are “Jurads,” exocomets released into the Milky Way during the post-main-sequence as the thermally pulsing asymptotic giant branch (AGB) host stars lose mass. In this study, we assess the prospects for the Legacy Survey of Space and Time (LSST) to detect a Jurad and examine whether such an interloper would be observationally distinguishable from exocomets ejected during the (pre-)main-sequence. Using analytic and numerical methods, we estimate the fraction of exo–Oort Cloud objects that are released from 1–8 M ⊙ stars during post-main-sequence evolution. We quantify the extent to which small bodies are altered by the increased luminosity and stellar outflows during the AGB, finding that some Jurads may lack hypervolatiles and that stellar winds could deposit dust that covers the entire exocomet surface. Next, we construct models of the interstellar small body reservoir for various size–frequency distributions and examine the LSST’s ability to detect members of those hypothesized populations. Combining these analyses, we highlight the joint constraints that the LSST will place on power-law size–frequency distribution slopes, characteristic sizes, and the total mass sequestered in the minor planets of exo–Oort Clouds. Even with the LSST’s increased search volume compared to contemporary surveys, we find that detecting a Jurad is unlikely but not infeasible given the current understanding of (exo)planet formation." @default.
- W4384301642 created "2023-07-15" @default.
- W4384301642 creator A5022041916 @default.
- W4384301642 creator A5026051293 @default.
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- W4384301642 creator A5071932187 @default.
- W4384301642 creator A5082331803 @default.
- W4384301642 creator A5086642897 @default.
- W4384301642 date "2023-07-01" @default.
- W4384301642 modified "2023-09-27" @default.
- W4384301642 title "Interstellar Comets from Post-main-sequence Systems as Tracers of Extrasolar Oort Clouds" @default.
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