The coronal parameters of local Seyfert galaxies

Abstract

One of the open problems for AGN is the nature of the primary X-ray emission: it is likely due to Comptonization of soft UV photons, but the optical depth and temperature of the emitting corona were largely unknown before the launch of the Nuclear Spectroscopic Telescope Array (NuSTAR). It is the first focusing hard X-ray telescope on orbit, 100 times more sensitive in the 10-79 keV band compared to previous observatories, enabling the study of AGN at high energies with high precision. We present and discuss the results on the hot corona parameters of Active Galactic Nuclei that have been recently measured with NuSTAR (often in coordination with XMM-Newton, Suzaku or Swift) with unprecedented accuracy, in a number of local Seyfert galaxies.

6 pages, 3 figures, accepted for publication on Astronomische Nachrichten/Astronomical Notes, proceedings of "The Extremes of Black Hole Accretion"

References in corpus (13)

• Improved Reflection Models of Black-Hole Accretion Disks: Treating the Angular Distribution of X-rays
• The NuSTAR spectrum of Mrk 335: Extreme relativistic effects within 2 gravitational radii of the event horizon?
• The broad band spectral variability of MCG-6-30-15 observed by NuSTAR and XMM-Newton
• Simultaneous NuSTAR and XMM-Newton 0.5-80 keV spectroscopy of the Narrow Line Seyfert 1 galaxy SWIFT J2127.4+5654
• The soft X-ray emission of Ark 120. XMM-Newton, NuSTAR, and the importance of taking the broad view
• The Broad-band X-ray Spectrum of IC 4329A from a Joint NuSTAR/Suzaku Observation
• The hard X-ray spectrum of NGC 5506 as seen by NuSTAR
• Coronal Properties of the Seyfert 1.9 Galaxy MCG -05-23-016 Determined from Hard X-ray Spectroscopy with NuSTAR
• NuSTAR Reveals the Comptonizing Corona of the Broad-Line Radio Galaxy 3C 382
• Measuring the Coronal Properties of IC4329A with NuSTAR
• The Compton hump and variable blue wing in the extreme low-flux NuSTAR observations of 1H0707-495
• The Seyfert 2 galaxy NGC 2110: hard X-ray emission observed by NuSTAR and variability of the iron K$\alpha$ line
• Transient and Highly Polarized Double-Peaked H-alpha Emission in the Seyfert 2 Nucleus of NGC 2110

Cited by in corpus (10)

• BAT AGN Spectroscopic Survey - V. X-ray properties of the Swift/BAT 70-month AGN catalog
• A NuSTAR census of coronal parameters in Seyfert galaxies
• The Soft-Excess in Mrk 509: Warm Corona or Relativistic Reflection?
• The high-Eddington NLS1 Ark 564 has the coolest corona
• A deep X-ray view of the bare AGN Ark120. V. Spin determination from disc-Comptonisation efficiency method
• The Nature of Soft Excess in ESO 362-G18 Revealed by XMM-Newton and NuSTAR Spectroscopy
• NuSTAR spectral analysis of two bright Seyfert 1 galaxies: MCG +8-11-11 and NGC 6814
• Correlation between relativistic reflection fraction and photon index in NuSTAR sample of Seyfert 1 AGN
• Coronal properties of the Seyfert 1 galaxy 3C 120 with NuSTAR
• The nature of X-ray spectral variability in MCG-6-30-15