3 papers
astro-ph.GA2025
Spectropolarimetry of NGC 1275 reveals a narrow-line radio galaxy with polarization parallel to its radio jet axis
F. Marin, T. Pursimo, I. Liodakis +4
Concomitant with the Imaging X-ray Polarimetry Explorer (IXPE) observation of the Perseus cluster, we obtained optical spectropolarimetry of its central active galactic nucleus, NG…
astro-ph.GA2025
Unveiling supermassive black hole binaries with FUV-to-NIR spectropolarimetry
Frédéric Marin, Julie Biedermann, Thibault Barnouin
In this proceedings, we review the importance and complexity of detecting and characterizing supermassive binary black holes using conventional techniques (spectroscopy, timing, im…
astro-ph.GA2025
Polarimetric insights into a potential binary supermassive black hole system in Mrk 231
J. Biedermann, F. Marin, T. Barnouin
Markarian 231 (Mrk 231) is one of the brightest ultraluminous infrared galaxies (ULIRGs) known to date. It displays a unique optical-UV spectrum, characterized by a strong and perp…