Subjects: Astronomy >> Astrophysical processes submitted time 2023-02-19
Bo-Wei Jiang
Paola Marziani
Đorđe Savić
Elena Shablovinskaya
Luka Č. Popović
Victor L. Afanasiev
Bożena Czerny
Jian-Min Wang
Ascensión del Olmo
Mauro D'Onofrio
Marzena Śniegowska
Paola Mazzei
Swayamtrupta Panda
Abstract： 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.
Peer Review Status:
Awaiting Review
Hits
Hits
Downloads
Comment