Linear Spectropolarimetric Analysis of Fairall 9 with VLT/FORS2
| Autor: | Jiang, Bo-Wei, Marziani, Paola, Savić, Đorđe, Shablovinskaya, Elena, Popović, Luka Č., Afanasiev, Victor L., Czerny, Bożena, Wang, Jian-Min, del Olmo, Ascensión, D'Onofrio, Mauro, Śniegowska, Marzena, Mazzei, Paola, Panda, Swayamtrupta |
|---|---|
| Rok vydání: | 2021 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1093/mnras/stab2273 |
| Popis: | The quasar Main Sequence (MS) appears to be an incredibly powerful tool to organize the diversity in large samples of type-1 quasars but the most important physical parameters governing it are still unclear. Here we investigate the origin of the broadening and of a defining feature of Population B sources: a strong redward asymmetry of the Balmer emission lines. We focus on a prototypical source, Fairall 9. Spectropolarimetric data of the Fairall 9 broad H$\beta$ and H$\alpha$ profiles allowed for a view of the geometric and dynamical complexity of the line emitting regions. Measurements (1) provided evidence of rotational motion; (2) were helpful to test the presence of polar and equatorial scatterers, and their association with non-virial motions. Comment: 22 pages, 3 tables and 14 figures. Accepted for publication in MNRAS |
| Databáze: | arXiv |
| Externí odkaz: |
|