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Dust Resurgence in Protoplanetary Disks Due to Planetesimal-Planet Interactions

Bernabo, Lia Marta and Turrini, Diego and Testi, Leonardo and Marzari, Francesco and Polychroni, Danae (2022) Dust Resurgence in Protoplanetary Disks Due to Planetesimal-Planet Interactions. Astrophysical Journal Letters, 927 (2). Institute of Physics (IOP) Publishing. doi: 10.3847/2041-8213/ac574e. ISSN 2041-8205.

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Official URL: https://iopscience.iop.org/article/10.3847/2041-8213/ac574e/pdf


Observational data on the dust content of circumstellar disks show that the median dust content in disks around pre-main-sequence stars in nearby star-forming regions seems to increase from ~1 to ~2 Myr and then decline with time. This behavior challenges the models where the small dust grains steadily decline by accumulating into larger bodies and drifting inwards on a short timescale (≤1 Myr). In this Letter we explore the possibility to reconcile this discrepancy in the framework of a model where the early formation of planets dynamically stirs the nearby planetesimals and causes high-energy impacts between them, resulting in the production of second-generation dust. We show that the observed dust evolution can be naturally explained by this process within a suite of representative disk-planet architectures.

Item URL in elib:https://elib.dlr.de/188903/
Document Type:Article
Title:Dust Resurgence in Protoplanetary Disks Due to Planetesimal-Planet Interactions
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Bernabo, Lia MartaUNSPECIFIEDhttps://orcid.org/0000-0002-8035-1032UNSPECIFIED
Turrini, DiegoINAF - Osservatorio Astrofisico di Torinohttps://orcid.org/0000-0002-1923-7740UNSPECIFIED
Testi, LeonardoEuropean Southern Observatory, INAF - Osservatorio Astrofisico di Arcetri,https://orcid.org/0000-0003-1859-3070UNSPECIFIED
Marzari, FrancescoDepartment of Physics and Astronomy, University of Padovahttps://orcid.org/0000-0003-0724-9987UNSPECIFIED
Polychroni, DanaeIndependent researcherhttps://orcid.org/0000-0002-7657-7418UNSPECIFIED
Date:10 March 2022
Journal or Publication Title:Astrophysical Journal Letters
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
Publisher:Institute of Physics (IOP) Publishing
Keywords:protoplanetary diisk, circumstellar disk, dust, planetesimals, planet formation, disk-planet interaction
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Project PLATO - PMC and Science
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Extrasolar Planets and Atmospheres
Deposited By: Bernabo, Lia Marta
Deposited On:31 Oct 2022 14:43
Last Modified:31 Oct 2022 14:43

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