Abstract
Some abnormal AGNs are discovered in the SDSS data recently. The usual UV/optical emission lines are exceptionally weak in their UV/optical spectroscopy, though the shapes and luminosities of their continua are comparable with that of the normal AGNs. We investigated the optical variations and the near-infrared spectra of these weak emission-line AGNs. We propose that these AGNs can be interpreted as the early stage of an active cycle of AGNs.
| Original language | English |
|---|---|
| Title of host publication | Feeding Compact Objects |
| Subtitle of host publication | Accretion on All Scales |
| Editors | Chengmin Zhang, Tomaso Belloni, Mariano Mendez, Shuangnan Zhang |
| Pages | 267-268 |
| Number of pages | 2 |
| Edition | S290 |
| DOIs | |
| Publication status | Published - Aug 2012 |
| Externally published | Yes |
Publication series
| Name | Proceedings of the International Astronomical Union |
|---|---|
| Number | S290 |
| Volume | 8 |
| ISSN (Print) | 1743-9213 |
| ISSN (Electronic) | 1743-9221 |
Keywords
- Quasars: emission lines
- infrared: galaxies
- line: formation
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Liu, Y., Zhang, J., & Zhang, S. N. (2012). The origin of weak emission-line AGNs. In C. Zhang, T. Belloni, M. Mendez, & S. Zhang (Eds.), Feeding Compact Objects: Accretion on All Scales (S290 ed., pp. 267-268). (Proceedings of the International Astronomical Union; Vol. 8, No. S290). https://doi.org/10.1017/S1743921312019941