ダウンロード数: 41
このアイテムのファイル:
ファイル | 記述 | サイズ | フォーマット | |
---|---|---|---|---|
mnras_stae319.pdf | 3.6 MB | Adobe PDF | 見る/開く |
完全メタデータレコード
DCフィールド | 値 | 言語 |
---|---|---|
dc.contributor.author | Nagoshi, Shumpei | en |
dc.contributor.author | Iwamuro, Fumihide | en |
dc.contributor.author | Yamada, Satoshi | en |
dc.contributor.author | Ueda, Yoshihiro | en |
dc.contributor.author | Oikawa, Yuto | en |
dc.contributor.author | Otsuka, Masaaki | en |
dc.contributor.author | Isogai, Keisuke | en |
dc.contributor.author | Mineshige, Shin | en |
dc.contributor.alternative | 名越, 俊平 | ja |
dc.contributor.alternative | 岩室, 史英 | ja |
dc.contributor.alternative | 山田, 智史 | ja |
dc.contributor.alternative | 上田, 佳宏 | ja |
dc.contributor.alternative | 及川, 雄飛 | ja |
dc.contributor.alternative | 大塚, 雅昭 | ja |
dc.contributor.alternative | 磯貝, 桂介 | ja |
dc.contributor.alternative | 嶺重, 慎 | ja |
dc.date.accessioned | 2024-03-06T07:19:48Z | - |
dc.date.available | 2024-03-06T07:19:48Z | - |
dc.date.issued | 2024-03 | - |
dc.identifier.uri | http://hdl.handle.net/2433/287229 | - |
dc.description | 超巨大ブラックホールの周囲に隠れたリング --時系列データから復元された立体構造--. 京都大学プレスリリース. 2024-03-04. | ja |
dc.description.abstract | The physical origins of quasar components, such as the broad-line region (BLR) and dust torus, remain under debate. To gain insights into them, we focused on changing-state quasars (CSQs) which provide a unique perspective through structural changes associated with accretion disc state transitions. We targeted SDSS J125809.31+351943.0, an extremely variable CSQ, to study its central core structure and kinematics. We conducted reverberation mapping with optical spectroscopy to explore the structure of the BLR and estimate the black hole mass. The results from Hβ reverberation mapping indicated a black hole mass of 10^{9.64^{+0.11}_{-0.20}}M_⊙. Additionally, we analysed variations in the optical to X-ray spectral indices, αox, before and after the state transition, to investigate the accretion disc. These variations in αox and the Eddington ratio (from 0.4 per cent to 2.4 per cent) exhibitied behaviour similar to state transitions observed in X-ray binary systems. Spectral analysis of Hβ revealed a predominantly double-peaked profile during dim periods, transitioning to include a single-peaked component as the quasar brightened, suggesting that Hβ contains a mixture of two components. Each of these components has its distinct characteristics: the first is a double-peaked profile that remains stable despite changes in the accretion rate, while the second is a variable single-peaked profile. Using time-lags from reverberation mapping, we estimated the spatial relationships between these BLR components, the accretion disc, and the dust torus. Our results suggest that the BLR consists of two distinct components, each differing in location and origin. | en |
dc.language.iso | eng | - |
dc.publisher | Oxford University Press (OUP) | en |
dc.publisher | Royal Astronomical Society | en |
dc.rights | © The Author(s) 2024. Published by Oxford University Press on behalf of Royal Astronomical Society. | en |
dc.rights | This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. | en |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | - |
dc.subject | accretion, accretion discs | en |
dc.subject | quasars: emission lines | en |
dc.subject | quasars: individual: SDSS J125809.31+351943.0 | en |
dc.subject | quasars: supermassive black holes | en |
dc.title | Probing the origin of the two-component structure of broad-line region by reverberation mapping of an extremely variable quasar | en |
dc.type | journal article | - |
dc.type.niitype | Journal Article | - |
dc.identifier.jtitle | Monthly Notices of the Royal Astronomical Society | en |
dc.identifier.volume | 529 | - |
dc.identifier.issue | 1 | - |
dc.identifier.spage | 393 | - |
dc.identifier.epage | 408 | - |
dc.relation.doi | 10.1093/mnras/stae319 | - |
dc.textversion | publisher | - |
dc.address | Department of Astronomy, Kyoto University | en |
dc.address | Department of Astronomy, Kyoto University | en |
dc.address | RIKEN Cluster for Pioneering Research | en |
dc.address | Department of Astronomy, Kyoto University | en |
dc.address | Department of Astronomy, Kyoto University | en |
dc.address | Department of Astronomy, Kyoto University; Okayama Observatory, Kyoto University | en |
dc.address | Department of Astronomy, Kyoto University; Okayama Observatory, Kyoto University; Department of Multi-Disciplinary Sciences, Graduate School of Arts and Sciences, The University of Tokyo | en |
dc.address | Department of Astronomy, Kyoto University | en |
dc.relation.url | https://www.kyoto-u.ac.jp/ja/research-news/2024-03-04 | - |
dcterms.accessRights | open access | - |
datacite.awardNumber | 22J13428 | - |
datacite.awardNumber | 22K20391 | - |
datacite.awardNumber | 23K13154 | - |
datacite.awardNumber | 19K03914 | - |
datacite.awardNumber | 22K03675 | - |
datacite.awardNumber | 18H05439 | - |
datacite.awardNumber | 20K14521 | - |
datacite.awardNumber.uri | https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22KJ1832/ | - |
datacite.awardNumber.uri | https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22K20391/ | - |
datacite.awardNumber.uri | https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23K13154/ | - |
datacite.awardNumber.uri | https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19K03914/ | - |
datacite.awardNumber.uri | https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22K03675/ | - |
datacite.awardNumber.uri | https://kaken.nii.ac.jp/grant/KAKENHI-PLANNED-18H05439/ | - |
datacite.awardNumber.uri | https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20K14521/ | - |
dc.identifier.pissn | 0035-8711 | - |
dc.identifier.eissn | 1365-2966 | - |
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.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 | 反響マッピング・多波長観測・長期間光度曲線を用いた、状態遷移するクエーサーの研究 | ja |
jpcoar.awardTitle | X線精密分光観測と赤外線高空間分解能観測で探る合体銀河中のアウトフローの物理機構 | ja |
jpcoar.awardTitle | X線衛星XRISMとTAO赤外線望遠鏡による合体銀河中のアウトフロー構造の解明 | ja |
jpcoar.awardTitle | 惑星状星雲の多波長三次元分光データ解析による恒星風質量放出の解明 | ja |
jpcoar.awardTitle | 惑星状星雲の高空間分解多波長三次元分光データ解析による恒星風質量放出の解明 | ja |
jpcoar.awardTitle | 惑星大気の形成・進化とその多様性の解明 | ja |
jpcoar.awardTitle | 可視赤外測光・分光観測と現代統計的解析手法の開発による降着円盤不安定性の解明 | ja |
出現コレクション: | 学術雑誌掲載論文等 |
![](/dspace/image/articlelinker.gif)
このアイテムは次のライセンスが設定されています: クリエイティブ・コモンズ・ライセンス