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....
| Hlavní autoři: | , , , , |
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| Médium: | Článek |
| Jazyk: | English |
| Vydáno: |
IOP Publishing
2023-01-01
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| Edice: | The Astrophysical Journal |
| Témata: | |
| On-line přístup: | https://doi.org/10.3847/1538-4357/acce9e |