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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 | 2001/09 |
| 形態種別 | その他 |
| 標題 | X-ray microlensing of bright quasars |
| 執筆形態 | その他 |
| 掲載誌名 | Publications of the Astronomical Society of Australia |
| 巻・号・頁 | 18(2),pp.186-188 |
| 著者・共著者 | Shin Mineshige,Atsunori Yonehara,Rohta Takahashi |
| 概要 | We calculate the expected microlens light curves to see what aspects of flow structures can be extracted by microlensing. We specifically pick up a disk-corona model as a model for bright quasars. We then expect distinct behaviour in the soft and hard X-ray microlens variations. Since soft X-ray emission is produced by Compton up-scattering of soft (optical-UV) photons from the innermost part of the disk, while hard X-ray radiation is via bremsstrahlung within the corona of a large volume, the model calculations predict more rapid soft X-ray changes than hard X-ray ones. Further, bright spots (or blobs) on the disk will produce humps in the microlens light curves. Future microlens observations will constrain such emission processes, thereby probing accretion flow structure. |
| DOI | 10.1071/AS01020 |
| ISSN | 1323-3580 |