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MACRO lens toward the Galactic Center: Secular component of apparent proper motion of QSOs induced by gravitational lens of the galaxy
https://jaxa.repo.nii.ac.jp/records/38319
https://jaxa.repo.nii.ac.jp/records/38319d451da2a-cd6d-4579-b809-34f036a329b1
Item type | 会議発表論文 / Conference Paper(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2015-03-26 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | MACRO lens toward the Galactic Center: Secular component of apparent proper motion of QSOs induced by gravitational lens of the galaxy | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 星雲中心 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 重力偏向 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | QSO | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | レンズ | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 恒星 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 密度 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | モデル | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | クェーサー | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | galactic center | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | gravitational deflection | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | QSO | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | lens | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | star | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | density | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | model | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | quasar | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||
資源タイプ | conference paper | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
その他のタイトル | ||||||
その他のタイトル | 星雲中心を向いたMACROレンズ:銀河の動力レンズによって誘発されたQSOの見かけ上の固有運動の経年要素 | |||||
著者 |
大西, 浩次
× 大西, 浩次× 細川, 瑞彦× 福島, 登志夫× Onishi, Koji× Hosokawa, Mizuhiko× Fukushima, Toshio |
|||||
著者所属 | ||||||
長野工業高等専門学校 | ||||||
著者所属 | ||||||
情報通信研究機構 | ||||||
著者所属 | ||||||
国立天文台 | ||||||
著者所属(英) | ||||||
en | ||||||
Nagano National College of Technology | ||||||
著者所属(英) | ||||||
en | ||||||
National Institute of Information and Communications Technology | ||||||
著者所属(英) | ||||||
en | ||||||
National Astronomical Observatory | ||||||
出版者 | ||||||
出版者 | 宇宙航空研究開発機構宇宙科学研究本部 | |||||
出版者(英) | ||||||
出版者 | Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS) | |||||
書誌情報 |
VLBI技術による宇宙研究シンポジウム en : Symposium on Space Research with VLBI Technology p. 4-10, 発行日 2005-03 |
|||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | The observed position of QSOs may vary due to the gravitational deflection by foreground objects. This effect is eminent in the direction of the Galactic Center. To measure the distance to the Galactic Center with the relative error of a few percent, in addition to the astrometric microlensing by individual stars in the Galaxy, the macro lens effect, the collective gravitational deflection by the core and the bulge of the Galaxy must be considered. This effect is important because it has a secular component. Its magnitude is 0.4 micro-as/yr in the case of internal motion of QSOs by the core and reaches 0.6 micro-as/yr in the case of the collective motion produced by both the core and the bulge. The measurement of these effects will provide valuable information on the density and mass function of the Galactic Center. | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: AA0048096002 |