{"_buckets": {"deposit": "5bcfdde4-d4a0-40de-b9af-b666525f8f90"}, "_deposit": {"created_by": 17, "id": "2002047", "owner": "17", "owners": [17], "owners_ext": {"displayname": "図書情報係", "username": "repository"}, "pid": {"revision_id": 0, "type": "depid", "value": "2002047"}, "status": "published"}, "_oai": {"id": "oai:nagoya.repo.nii.ac.jp:02002047", "sets": ["881"]}, "author_link": [], "item_1615768549627": {"attribute_name": "出版タイプ", "attribute_value_mlt": [{"subitem_version_resource": "http://purl.org/coar/version/c_970fb48d4fbd8a85", "subitem_version_type": "VoR"}]}, "item_9_biblio_info_6": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2021-08", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "8", "bibliographicPageStart": "e2021JA029168", "bibliographicVolumeNumber": "126", "bibliographic_titles": [{"bibliographic_title": "Journal of Geophysical Research-Space Physics", "bibliographic_titleLang": "en"}]}]}, "item_9_description_4": {"attribute_name": "内容記述", "attribute_value_mlt": [{"subitem_description": "The present study examines the low-energy ion flux variations observed by the Arase satellite in the inner magnetosphere. From the magnetic field and ion flux data obtained by the fluxgate magnetometer and the low-energy particle experiments–ion mass analyzer onboard Arase, we find 55 events of the low-energy O^+ flux enhancement accompanied with magnetic field dipolarization in the periods of April 1–October 31, 2017 and July 1, 2018–January 31, 2019. The low-energy O^+ flux enhancements (a) start a few minutes after the dipolarization onset, (b) have energy-dispersed signatures with decreasing energy from a few keV down to ∼10 eV, (c) are observed in both storm and non-storm periods, (d) have a field-aligned distribution (α ∼ 0° in the southern hemisphere and α ∼ 180° in the northern hemisphere), (e) are accompanied by the low-energy H^+ flux enhancements that have lower energies than O^+ by a factor of 3–10, and (f) increase the O^+ density and the O^+/H^+ density ratio by ∼10 times and 4–5 times, respectively. We perform a numerical simulation to trace ion trajectories forward in time from the Arase positions. It is revealed that both H^+ and O^+ ions drift eastward and reach the dawn-to-morning sector without being lost in the ionosphere, if the pitch angle scattering effect is considered near the equatorial plane. This result suggests that these low-energy field-aligned ions can contribute to formation of the warm plasma cloak.", "subitem_description_language": "en", "subitem_description_type": "Abstract"}]}, "item_9_publisher_32": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "Wiley", "subitem_publisher_language": "en"}]}, "item_9_relation_43": {"attribute_name": "関連情報", "attribute_value_mlt": [{"subitem_relation_type": "isVersionOf", "subitem_relation_type_id": {"subitem_relation_type_id_text": "https://doi.org/10.1029/2021JA029168", "subitem_relation_type_select": "DOI"}}]}, "item_9_rights_12": {"attribute_name": "権利", "attribute_value_mlt": [{"subitem_rights": "© 2021 American Geophysical Union", "subitem_rights_language": "en"}]}, "item_9_source_id_7": {"attribute_name": "収録物識別子", "attribute_value_mlt": [{"subitem_source_identifier": "2169-9402", "subitem_source_identifier_type": "EISSN"}]}, "item_access_right": {"attribute_name": "アクセス権", "attribute_value_mlt": [{"subitem_access_right": "open access", "subitem_access_right_uri": "http://purl.org/coar/access_right/c_abf2"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Nosé, M.", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Matsuoka, A.", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Miyoshi, Y.", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Asamura, K.", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Hori, T.", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Teramoto, M.", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Shinohara, I.", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Hirahara, M.", "creatorNameLang": "en"}]}]}, "item_files": {"attribute_name": "ファイル情報", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_access", "date": [{"dateType": "Available", "dateValue": "2022-02-08"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "JGR_Space_Physics_2021_Nose.pdf", "filesize": [{"value": "14.2 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "mimetype": "application/pdf", "size": 14200000.0, "url": {"objectType": "fulltext", "url": "https://nagoya.repo.nii.ac.jp/record/2002047/files/JGR_Space_Physics_2021_Nose.pdf"}, "version_id": "2d5afb9e-e4a1-48e6-94b0-4d1831ec6fd5"}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_resource_type": {"attribute_name": "資源タイプ", "attribute_value_mlt": [{"resourcetype": "journal article", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "Field-Aligned Low-Energy O^+ Flux Enhancements in the Inner Magnetosphere Observed by Arase", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Field-Aligned Low-Energy O^+ Flux Enhancements in the Inner Magnetosphere Observed by Arase", "subitem_title_language": "en"}]}, "item_type_id": "40001", "owner": "17", "path": ["881"], "permalink_uri": "http://hdl.handle.net/2237/0002002047", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2022-02-08"}, "publish_date": "2022-02-08", "publish_status": "0", "recid": "2002047", "relation": {}, "relation_version_is_last": true, "title": ["Field-Aligned Low-Energy O^+ Flux Enhancements in the Inner Magnetosphere Observed by Arase"], "weko_shared_id": -1}
Field-Aligned Low-Energy O^+ Flux Enhancements in the Inner Magnetosphere Observed by Arase
http://hdl.handle.net/2237/0002002047
http://hdl.handle.net/2237/0002002047