Steep Balmer Decrement in Weak AGNs May Not Be Caused by Dust Extinction: Clues from Low-luminosity AGNs and Changing-look AGNs
The hydrogen Balmer decrement (e.g., H α /H β ) is widely adopted as an indicator of the internal reddening of active galactic nuclei (AGNs). This is challenged by some low-luminosity AGNs and changing-look AGNs (CLAGNs), which have steep Balmer decrement but without strong evidence for absorption....
| Main Authors: | , , , , |
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| 格式: | 文件 |
| 语言: | English |
| 出版: |
IOP Publishing
2023-01-01
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| 丛编: | The Astrophysical Journal |
| 主题: | |
| 在线阅读: | https://doi.org/10.3847/1538-4357/acce9e |