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Ray Systems in Granular Cratering
https://oist.repo.nii.ac.jp/records/761
https://oist.repo.nii.ac.jp/records/761dd61eb8d-a2c3-4873-a3ca-df997c6feb25
名前 / ファイル | ライセンス | アクション |
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Sabuwala-2018-Ray Systems in Granular Craterin (2.3 MB)
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Creative Commons
Attribution 4.0 International (https://creativecommons.org/licenses/by/4.0/) |
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2018-12-04 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Ray Systems in Granular Cratering | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者(英) |
Sabuwala, Tapan
× Sabuwala, Tapan× Butcher, Christian× Gioia, Gustavo× Chakraborty, Pinaki |
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書誌情報 |
en : Physical Review Letters 巻 120, 号 26, p. 264501, 発行日 2018-06-27 |
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抄録 | ||||||
内容記述タイプ | Other | |||||
内容記述 | In classical experiments of granular cratering, a ball dropped on an evened-out bed of grains ends up within a crater surrounded by a uniform blanket of ejecta. In this Letter, we show that the uniform blanket of ejecta changes to a ray system, or set of radial streaks of ejecta, where the surface of the granular bed includes undulations, a factor that has not been addressed to date. By carrying out numerous experiments and computational simulations thereof, we ascertain that the number of rays in a ray system proportional, variantD/lambda, where D is the diameter of the ball and lambda is the wavelength of the undulations. Further, we show that the ejecta in a ray system originates in a narrow annulus of diameter D with the center at the site of impact. Our findings may help shed light on the enigmatic ray systems that ring many impact craters on the Moon and other planetary bodies. | |||||
出版者 | ||||||
出版者 | American Physical Society | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1079-7114 | |||||
PubMed番号 | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | PMID | |||||
関連識別子 | info:pmid/30004751 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1103/PhysRevLett.120.264501 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.120.264501 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |