Size Dependence of the Bouncing Barrier in Protoplanetary Dust Growth
Understanding the collisional behavior of dust aggregates is essential in the context of planet formation. It is known that low-velocity collisions of dust aggregates result in bouncing rather than sticking when the filling factor of colliding dust aggregates is higher than a threshold value. Howeve...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | The Astrophysical Journal Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.3847/2041-8213/acdb5f |
| _version_ | 1797699405578502144 |
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| author | Sota Arakawa Satoshi Okuzumi Misako Tatsuuma Hidekazu Tanaka Eiichiro Kokubo Daisuke Nishiura Mikito Furuichi Taishi Nakamoto |
| author_facet | Sota Arakawa Satoshi Okuzumi Misako Tatsuuma Hidekazu Tanaka Eiichiro Kokubo Daisuke Nishiura Mikito Furuichi Taishi Nakamoto |
| author_sort | Sota Arakawa |
| collection | DOAJ |
| description | Understanding the collisional behavior of dust aggregates is essential in the context of planet formation. It is known that low-velocity collisions of dust aggregates result in bouncing rather than sticking when the filling factor of colliding dust aggregates is higher than a threshold value. However, a large discrepancy between numerical and experimental results on the threshold filling factor was reported so far. In this study, we perform numerical simulations using soft-sphere discrete element methods and demonstrate that the sticking probability decreases with increasing aggregate radius. Our results suggest that the large discrepancy in the threshold filling factor may reflect the difference in the size of dust aggregates in earlier numerical simulations and laboratory experiments. |
| first_indexed | 2024-03-12T04:07:30Z |
| format | Article |
| id | doaj.art-26001b810d65411eb5fa66ef04d924f3 |
| institution | Directory Open Access Journal |
| issn | 2041-8205 |
| language | English |
| last_indexed | 2024-03-12T04:07:30Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal Letters |
| spelling | doaj.art-26001b810d65411eb5fa66ef04d924f32023-09-03T11:11:17ZengIOP PublishingThe Astrophysical Journal Letters2041-82052023-01-019511L1610.3847/2041-8213/acdb5fSize Dependence of the Bouncing Barrier in Protoplanetary Dust GrowthSota Arakawa0https://orcid.org/0000-0003-0947-9962Satoshi Okuzumi1https://orcid.org/0000-0002-1886-0880Misako Tatsuuma2https://orcid.org/0000-0003-1844-5107Hidekazu Tanaka3https://orcid.org/0000-0001-9659-658XEiichiro Kokubo4https://orcid.org/0000-0002-5486-7828Daisuke Nishiura5https://orcid.org/0000-0001-9163-9296Mikito Furuichi6https://orcid.org/0000-0002-4334-0879Taishi Nakamoto7https://orcid.org/0000-0003-3924-6174Japan Agency for Marine-Earth Science and Technology, 3173-25 Showa-machi, Kanazawa-ku, Yokohama 236-0001, Japan ; arakawas@jamstec.go.jpDepartment of Earth and Planetary Sciences, Tokyo Institute of Technology , 2-12-1 Ookayama, Meguro, Tokyo 152-8550, JapanDepartment of Earth and Planetary Sciences, Tokyo Institute of Technology , 2-12-1 Ookayama, Meguro, Tokyo 152-8550, JapanAstronomical Institute, Graduate School of Science, Tohoku University , 6-3 Aramaki, Aoba-ku, Sendai 980-8578, JapanNational Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, JapanJapan Agency for Marine-Earth Science and Technology, 3173-25 Showa-machi, Kanazawa-ku, Yokohama 236-0001, Japan ; arakawas@jamstec.go.jpJapan Agency for Marine-Earth Science and Technology, 3173-25 Showa-machi, Kanazawa-ku, Yokohama 236-0001, Japan ; arakawas@jamstec.go.jpDepartment of Earth and Planetary Sciences, Tokyo Institute of Technology , 2-12-1 Ookayama, Meguro, Tokyo 152-8550, JapanUnderstanding the collisional behavior of dust aggregates is essential in the context of planet formation. It is known that low-velocity collisions of dust aggregates result in bouncing rather than sticking when the filling factor of colliding dust aggregates is higher than a threshold value. However, a large discrepancy between numerical and experimental results on the threshold filling factor was reported so far. In this study, we perform numerical simulations using soft-sphere discrete element methods and demonstrate that the sticking probability decreases with increasing aggregate radius. Our results suggest that the large discrepancy in the threshold filling factor may reflect the difference in the size of dust aggregates in earlier numerical simulations and laboratory experiments.https://doi.org/10.3847/2041-8213/acdb5fPlanet formationPlanetesimalsProtoplanetary disksSmall Solar System bodiesCollisional processes |
| spellingShingle | Sota Arakawa Satoshi Okuzumi Misako Tatsuuma Hidekazu Tanaka Eiichiro Kokubo Daisuke Nishiura Mikito Furuichi Taishi Nakamoto Size Dependence of the Bouncing Barrier in Protoplanetary Dust Growth The Astrophysical Journal Letters Planet formation Planetesimals Protoplanetary disks Small Solar System bodies Collisional processes |
| title | Size Dependence of the Bouncing Barrier in Protoplanetary Dust Growth |
| title_full | Size Dependence of the Bouncing Barrier in Protoplanetary Dust Growth |
| title_fullStr | Size Dependence of the Bouncing Barrier in Protoplanetary Dust Growth |
| title_full_unstemmed | Size Dependence of the Bouncing Barrier in Protoplanetary Dust Growth |
| title_short | Size Dependence of the Bouncing Barrier in Protoplanetary Dust Growth |
| title_sort | size dependence of the bouncing barrier in protoplanetary dust growth |
| topic | Planet formation Planetesimals Protoplanetary disks Small Solar System bodies Collisional processes |
| url | https://doi.org/10.3847/2041-8213/acdb5f |
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