On the driver of relativistic effect strength in Seyfert galaxies

2011/04/26 by M. Guainazzi, S. Bianchi, I. de la Calle Pérez +4
Engineering · Physics and Astronomy · #Accretion (finance) #Accretion disc #Active galactic nucleus #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #Black hole (networking) #Emission spectrum #Galaxy #Mechanics and Biomechanics Studies #Physics #Quasar #Relativistic quantum chemistry #Spectral line #Supermassive black hole #astro-ph.CO #astro-ph.HE

paper · pdf · doi:10.1051/0004-6361/201016245

Accepted for publication on Astronomy & Astrophysics. 14 pages, 9 figures

arxiv created 2011/04/26 · openalex publication_date 2011/05/16 · arxiv updated 2015/05/28 · openalex created_date 2019/06/27 · openalex updated_date 2026/08/05

Abstract

Context. Spectroscopy of X-ray emission lines emitted from accretion discs around supermassive black holes is one of the most powerful probes of the accretion flow physics and geometry, while also providing in principle observational constraints on the black hole spin. Previous studies have suggested that relativistically broadened line profiles are fairly common in nearby unobscured Seyfert galaxies. Their strength, as parametrised by the equivalent width (EW) against the total underlying continuum, spans a range of almost two orders of magnitude.

Citations

• INTEGRALandXMM‐NewtonSpectral Studies of NGC 4388
• The Soft X‐Ray Spectrum of Scattering‐dominated Active Galactic Nuclei
• XMM‐NewtonObservations of Broad Iron Kα Emission from Seyfert 1.9 Galaxy MCG −5‐23‐16
• SUZAKUOBSERVATION OF A HARD EXCESS IN 1H 0419 – 577: DETECTION OF A COMPTON-THICK PARTIAL-COVERING ABSORBER
• The iron line in MCG--6-30-15 from XMM--Newton: evidence for gravitational light bending?
• Cosmic Evolution of Mass Accretion Rate and Metallicity in Active Galactic Nuclei
• XMM-EPIC observation of MCG-6-30-15: direct evidence for the extraction of energy from a spinning black hole?
• CLOUDY 90: Numerical Simulation of Plasmas and Their Spectra
• Occultation Measurement of the Size of the X-Ray-emitting Region in the Active Galactic Nucleus of NGC 1365
• First‐Year Wilkinson Microwave Anisotropy Probe ( WMAP ) Observations: Preliminary Maps and Basic Results
• A prominent relativistic iron line in the Seyfert 1 MCG-02-14-009
• On the evidence for narrow, relativistically shifted X-ray lines
• On the deep minimum state in the Seyfert galaxy MCG−6-30-15
• On the origin of the broad, relativistic iron line of MCG–6-30-15observed by XMM-Newton