| タイトル | The strong UV source in the active E Galaxy NGC 4552 |
| 著者（英） | Oconnell, R. W.; Thuan, T. X.; Puschell, J. J. |
| 著者所属（英） | Titan Systems, Inc.|Virginia Univ. |
| 発行日 | 1986-04-15 |
| 言語 | eng |
| 内容記述 | 1200-3200 A IUE spectra of the nucleus of NGC 4552 (M89) were obtained in order to investigate the nature of the strong 10 micron source in this Galaxy. There is a strong, extended UV source in NGC 4552 which has a spatial distribution nearly identical with that at optical wavelengths and is undoubedly stellar in origin. Its properties are consistent with the correlation between UV source strength and metallicity pointed out by Faber (1983). There is no evidence for a nonthermal point source in the UV. It appears unlikely that the 10 micron emission is from heated dust grains. Instead, it is believed the 10 micron radiation is nonthermal in origin, implying a remarkably small size of only 0.1 AU for this source. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 86A35793 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/384869 |
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