抄録
In order to study the origin of the soft excess of Narrow-Line Seyfert1 Galaxies, 7 objects observed with XMM-Newton are analyzed. The soft excess is found to have mildly convex shape, which is successfully reproduced by a power-law with an exponential cutoff. It can be interpreted as disk Comptonization by cool and relatively optically thick plasma based on an analogy with Galactic black holes under high accretion rates.
| 本文言語 | English |
|---|---|
| ページ（範囲） | 389-390 |
| ページ数 | 2 |
| ジャーナル | Progress of Theoretical Physics Supplement |
| 巻 | 155 |
| DOI | |
| 出版ステータス | Published - 2004 1 1 |
| 外部発表 | はい |
ASJC Scopus subject areas
- 物理学および天文学（その他）