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ヨネハラ アツノリ
YONEHARA ATSUNORI
米原 厚憲 所属 京都産業大学 理学部 宇宙物理・気象学科 職種 教授 |
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| 言語種別 | 英語 |
| 発行・発表の年月 | 2003/09 |
| 形態種別 | 研究論文 |
| 標題 | A new method to map flares in quasars |
| 執筆形態 | その他 |
| 掲載誌名 | ASTROPHYSICAL JOURNAL |
| 出版社・発行元 | UNIV CHICAGO PRESS |
| 巻・号・頁 | 594(1),pp.107-115 |
| 著者・共著者 | A Yonehara,S Mineshige,Y Takei,G Chartas,EL Turner |
| 概要 | Recently, Chartas et al. detected a rapid X-ray. are in the gravitationally lensed, multiple-image quasar RX J0911.4+ 0551. Dramatic events, such as rapid X-ray flares, are useful for providing high-precision measurements of the time delays between multiple images. In this paper we argue that there is a new possibility for measuring time delays between multiple images of gravitationally lensed quasars and constraining the locations of putative flares that give rise to the intrinsic rapid variabilities of quasars. The realization of these goals, however, cannot be achieved at present because of the limited accuracy of the current measurements. We predict that timing flares with accuracies of the order of a few seconds will be needed to probe the location of the flares. The method that we are proposing will work with better instruments in near future, such as the X-Ray Evolving Universe Spectroscopy Mission. |
| DOI | 10.1086/376936 |
| ISSN | 0004-637X |