| Relations between the IR-UV-X-ray Continuum and Emission Lines for a Large Composite Sample of Narrow Line and Normal Seyfert 1 Galaxies |
| |
| 作者姓名： | You-Jun Lu and Chong-Shan Zhao |
| |
| 作者单位： | Center for Astrophysics，University of Science and Technology of China，Hefei 230026 |
| |
| 基金项目： | the National Natural Science Foundation
of China and Chinese Panden Project. |
| |
| 摘 要： | 1 INTRODUCTIONThe broad emission lines, the most important characteristics of active galactic nuclei (AGN),are generally believed to be emitted by photoionized gas in the clouds that are illuminated bythe UV to X-ray continuum radiation of the celltral source (Netzer 1990). The photoionizationmodel is quite successful in explaining the average emission line properties of AGNs using anaverage ionizing continuum. To date, there are two sets of statistical relationships between thecolltin…
|
Relations between the IR-UV-X-ray Continuum and Emission Lines for a Large Composite Sample of Narrow Line and Normal Seyfert 1 Galaxies |
| |
| You-Jun Lu and Chong-Shan Zhao.Relations between the IR-UV-X-ray Continuum and Emission Lines for a Large Composite Sample of Narrow Line and Normal Seyfert 1 Galaxies[J].Chinese Journal of Astronomy and Astrophysics,2001(1). |
| |
| Authors: | You-Jun Lu and Chong-Shan Zhao |
| |
| Abstract: | We report on our research on the UV, optical line parameters and the infrared through UV to soft X-ray continuum parameters for a composite sample of narrow line and normal Seyfert 1 galaxies. The strong correlations among the line width of HB, optical line strength of Fell and the soft X-ray slope are confirmed. We found no correlations between the UV line parameters, the equivalent widths of Lya and CIV and their ratio on one hand and the optical line parameters on the other. The UV and X-ray luminosities strongly correlate with the line widths of HB and the Fe II/HB ratio. No significant correlation is found between the infrared-soft X-my continuum slope aix and the line width of HB. |
| |
| Keywords: | galaxies: active galactic nuclei (AGN) - emission lines - Ultraviolet: galaxies - galaxies: X-rays |
| 本文献已被 CNKI 等数据库收录！ |
