SIMBAD references

2017MNRAS.469..110G - Mon. Not. R. Astron. Soc., 469, 110-126 (2017/July-3)

The infrared to X-ray correlation spectra of unobscured type 1 active galactic nuclei.

GARCIA-BERNETE I., RAMOS ALMEIDA C., LANDT H., WARD M.J., BALOKOVIC M. and ACOSTA-PULIDO J.A.

Abstract (from CDS):

We use new X-ray data obtained with the Nuclear Spectroscopic Telescope Array (NuSTAR), near-infrared (NIR) fluxes and mid-infrared (MIR) spectra of a sample of 24 unobscured type 1 active galactic nuclei (AGN) to study the correlation between various hard X-ray bands between 3 and 80 keV and the infrared (IR) emission. The IR to X-ray correlation spectrum (IRXCS) shows a maximum at ∼15-20 µm, coincident with the peak of the AGN contribution to the MIR spectra of the majority of the sample. There is also an NIR correlation peak at ∼2 µm, which we associate with the NIR bump observed in some type 1 AGN at ∼1-5 µm and is likely produced by nuclear hot dust emission. The IRXCS shows practically the same behaviour in all the X-ray bands considered, indicating a common origin for all of them. We finally evaluated correlations between the X-ray luminosities and various MIR emission lines. All the lines show a good correlation with the hard X-rays (ρ >= 0.7), but we do not find the expected correlation between their ionization potentials and the strength of the IRXCS.

Abstract Copyright: © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: active - galaxies: nuclei - infrared: galaxies - X-rays: galaxies - X-rays: galaxies

Simbad objects: 28

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2019.12.09-12:03:40

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