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dc.contributor.author | Kobashi, Ryosuke | en |
dc.contributor.author | Lee, Shiu-Hang | en |
dc.contributor.author | Tanaka, Takaaki | en |
dc.contributor.author | Maeda, Keiichi | en |
dc.contributor.alternative | 小橋, 亮介 | ja |
dc.contributor.alternative | 李, 兆衡 | ja |
dc.contributor.alternative | 前田, 啓一 | ja |
dc.date.accessioned | 2024-03-06T07:19:44Z | - |
dc.date.available | 2024-03-06T07:19:44Z | - |
dc.date.issued | 2024-01-20 | - |
dc.identifier.uri | http://hdl.handle.net/2433/287228 | - |
dc.description.abstract | Among Type Ia supernova remnants (SNRs), Tycho's SNR has been considered as a typical object from the viewpoints of its spectroscopic, morphological, and environmental properties. A recent reanalysis of Chandra data showed that its forward shock is experiencing a substantial deceleration since around 2007, which suggests recent shock interactions with a dense medium as a consequence of a cavity-wall environment inside a molecular cloud. Such a nonuniform environment can be linked back to the nature and activities of its progenitor. In this study, we perform hydrodynamic simulations to characterize Tycho's cavity-wall environment using the latest multiepoch proper motion measurements of the forward shock. A range of parameters for the environment is explored in the hydrodynamic models to fit with the observational data for each azimuthal region. Our results show that a wind-like cavity with ρ(r) ∝ r⁻² reconciles with the latest data better than a uniform medium with a constant density. In addition, our best-fit model favors an anisotropic wind with an azimuthally varying wind parameter. The overall result indicates a mass-loss rate which is unusually high for the conventional single-degenerate explosion scenario. | en |
dc.language.iso | eng | - |
dc.publisher | American Astronomical Society | en |
dc.rights | © 2024. The Author(s). Published by the American Astronomical Society. | en |
dc.rights | Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. | en |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | - |
dc.subject | Proper motions | en |
dc.subject | Molecular clouds | en |
dc.subject | Circumstellar matter | en |
dc.subject | X-ray sources | en |
dc.subject | Supernova remnants | en |
dc.subject | Type Ia supernovae | en |
dc.title | Exploring the Circumstellar Environment of Tycho's Supernova Remnant. I. The Hydrodynamic Evolution of the Shock | en |
dc.type | journal article | - |
dc.type.niitype | Journal Article | - |
dc.identifier.jtitle | The Astrophysical Journal | en |
dc.identifier.volume | 961 | - |
dc.identifier.issue | 1 | - |
dc.relation.doi | 10.3847/1538-4357/ad05c2 | - |
dc.textversion | publisher | - |
dc.identifier.artnum | 32 | - |
dcterms.accessRights | open access | - |
datacite.awardNumber | 19K03913 | - |
datacite.awardNumber | 19H01936 | - |
datacite.awardNumber | 21H04493 | - |
datacite.awardNumber | 20H00174 | - |
datacite.awardNumber.uri | https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19K03913/ | - |
datacite.awardNumber.uri | https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19H01936/ | - |
datacite.awardNumber.uri | https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21H04493/ | - |
datacite.awardNumber.uri | https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20H00174/ | - |
dc.identifier.pissn | 0004-637X | - |
dc.identifier.eissn | 1538-4357 | - |
jpcoar.funderName | 日本学術振興会 | ja |
jpcoar.funderName | 日本学術振興会 | ja |
jpcoar.funderName | 日本学術振興会 | ja |
jpcoar.funderName | 日本学術振興会 | ja |
jpcoar.awardTitle | Studying Massive Star Evolution from Progenitor to Supernova Remnant using Long-term Hydrodynamical Simulations and Machine Learning | en |
jpcoar.awardTitle | 超新星残骸で加速される宇宙線総量の測定と粒子加速における注入問題の解決 | ja |
jpcoar.awardTitle | 準相対論的粒子のX線観測で迫る天の川銀河中心領域の高い活動性のエネルギー源 | ja |
jpcoar.awardTitle | 超新星爆発直後の超早期分光観測と理論モデルで迫る、大質量星最期の10年間 | ja |
出現コレクション: | 学術雑誌掲載論文等 |
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