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Near-infrared intraday variations in AGNs
https://jaxa.repo.nii.ac.jp/records/5282
https://jaxa.repo.nii.ac.jp/records/5282ddc9c598-af75-49a6-a6b1-129b9a0658ce
名前 / ファイル | ライセンス | アクション |
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64306043.pdf (323.6 kB)
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Item type | 会議発表論文 / Conference Paper(1) | |||||
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公開日 | 2015-03-26 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Near-infrared intraday variations in AGNs | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | AGN : time variation - AGN : multiwavelength (X-ray, optical, and near-infrared) | |||||
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 | |||||
著者 |
峰崎, 岳夫
× 峰崎, 岳夫× 吉井, 讓× 小林, 行泰× 塩谷, 圭吾× 菅沼, 正洋× Minezaki, Takeo× Yoshii, Yuzuru× Kobayashi, Yukiyasu× Enya, Keigo× Suganuma, Masahiro× Tomita, Hiroyuki× Koshida, Shintaro× Yamauchi, Masahiro× Sakata, Yu× Sugawara, Shota |
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著者所属 | ||||||
東京大学理学系研究科天文学教育研究センター | ||||||
著者所属 | ||||||
東京大学理学系研究科天文学教育研究センター | ||||||
著者所属 | ||||||
国立天文台 | ||||||
著者所属 | ||||||
宇宙航空研究開発機構宇宙科学研究本部 | ||||||
著者所属 | ||||||
国立天文台 | ||||||
著者所属 | ||||||
東京大学理学系研究科天文学教育研究センター | ||||||
著者所属 | ||||||
東京大学理学系研究科天文学専攻 | ||||||
著者所属 | ||||||
東京大学理学系研究科天文学専攻 | ||||||
著者所属 | ||||||
東京大学理学系研究科天文学専攻 | ||||||
著者所属 | ||||||
東京大学理学系研究科天文学専攻 | ||||||
著者所属(英) | ||||||
en | ||||||
Institute of Astronomy, School of Science, University of Tokyo | ||||||
著者所属(英) | ||||||
en | ||||||
Institute of Astronomy, School of Science, University of Tokyo | ||||||
著者所属(英) | ||||||
en | ||||||
National Astronomical Observatory | ||||||
著者所属(英) | ||||||
en | ||||||
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS)(JAXA) | ||||||
著者所属(英) | ||||||
en | ||||||
National Astronomical Observatory | ||||||
著者所属(英) | ||||||
en | ||||||
Institute of Astronomy, School of Science, University of Tokyo | ||||||
著者所属(英) | ||||||
en | ||||||
Department of Astronomy, School of Science, University of Tokyo | ||||||
著者所属(英) | ||||||
en | ||||||
Department of Astronomy, School of Science, University of Tokyo | ||||||
著者所属(英) | ||||||
en | ||||||
Department of Astronomy, School of Science, University of Tokyo | ||||||
著者所属(英) | ||||||
en | ||||||
Department of Astronomy, School of Science, University of Tokyo | ||||||
出版者 | ||||||
出版者 | 宇宙航空研究開発機構 | |||||
出版者(英) | ||||||
出版者 | Japan Aerospace Exploration Agency (JAXA) | |||||
書誌情報 |
宇宙航空研究開発機構特別資料 en : JAXA Special Publication: Astrophysics with All-Sky X-Ray observations: 3rd International MAXI Workshop 巻 JAXA-SP-08-014E, p. 218-222, 発行日 2009-02-27 |
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会議概要(会議名, 開催地, 会期, 主催者等)(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Astrophysics with All-Sky X-Ray observations: 3rd International MAXI Workshop (RIKEN, 10-12 June 2008) | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | We carried out a one-night optical V and near-infrared JHK monitoring observation of the least luminous Seyfert 1 galaxy, NGC 4395, on 2004 May 1, and detected intraday flux variations in the V, J, and H bands. The near-infrared flux variations are almost synchronized with the flux variation in the V band. This indicates that the intraday-variable component of near-infrared continuum emission of the NGC 4395 nucleus is an extension of UV-optical power-law continuum emission and originates in an outer region of the central accretion disk. In addition, a possible time lag of ca. 7 minutes between the V-band and infrared flux variations was found by cross-correlation analysis. These results can be explained by the X-ray reprocessing model, in which X-ray flux variation propagates with light velocity and drives the flux variations in optical and near-infrared wavelengths. We also carried out the most intense monitoring observations in the optical and near-infrared wavebands for a Seyfert 1 galaxy, NGC 5548, and examined the correlation between the X-ray and optical flux variations. The X-ray light curve was taken from Uttley et al. (2003) as observed by the Rossi X-ray Timing Explorer (RXTE). The V-band flux variation shows a clear lag of 1 - 2 days behind the X-ray flux variation, which supports the X-ray reprocessing model for the optical flux variation at short timescales. | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 著者人数: 11人 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1349-113X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11984031 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: AA0064306043 | |||||
レポート番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | レポート番号: JAXA-SP-08-014E |