Ejection-accretion connection in NLS1 AGN 1H 1934-063
Xu Y, Pinto C, Kara E, Masterson M, Garcia JA, Fabian AC, Parker ML, Barret D, Alston WN, Cusumano G (2022)
Publication Type: Journal article
Publication year: 2022
Journal
Book Volume: 513
Pages Range: 1910-1924
Journal Issue: 2
Abstract
Accretion and ejection of matter in active galactic nuclei (AGNs) are tightly connected phenomena and represent fundamental mechanisms regulating the growth of the central supermassive black hole and the evolution of the host galaxy. However, the exact physical processes involved are not yet fully understood. We present a high-resolution spectral analysis of a simultaneous XMM-Newton and NuSTAR observation of the narrow line Seyfert 1 (NLS1) AGN 1H 1934-063, during which the X-ray flux dropped by a factor of similar to 6 and subsequently recovered within 140 kiloseconds. By means of the time-resolved and flux-resolved X-ray spectroscopy, we discover a potentially variable warm absorber and a relatively stable ultra-fast outflow (UFO, v(UFO) similar to -0.075 c) with a mild ionization state (log(xi/erg cm s(-1)) similar to 1.6). The detected emission lines (especially a strong and broad feature around 1 keV) are of unknown origin and cannot be explained with emission from plasmas in photo- or collisionalionization equilibrium. Such emission lines could be well described by a strongly blueshifted (z similar to -0.3) secondary reflection off the base of the equatorial outflows, which may reveal the link between the reprocessing of the inner accretion flow photons and the ejection. However, this scenario although being very promising is only tentative and will be tested with future observations.
Involved external institutions
Institute of Space Astrophysics and Cosmic Physics / Palermo Istituto di Astrofisica Spaziale e Fisica Cosmica (IASF)
Italy (IT)
Massachusetts Institute of Technology (MIT)
United States (USA) (US)
California Institute of Technology (Caltech)
United States (USA) (US)
University of Cambridge
United Kingdom (GB)
European Space Astronomy Centre (ESAC)
Spain (ES)
Université Fédérale de Toulouse Midi-Pyrénées
France (FR)
Italy (IT)
Massachusetts Institute of Technology (MIT)
United States (USA) (US)
California Institute of Technology (Caltech)
United States (USA) (US)
University of Cambridge
United Kingdom (GB)
European Space Astronomy Centre (ESAC)
Spain (ES)
Université Fédérale de Toulouse Midi-Pyrénées
France (FR)
How to cite
APA:
Xu, Y., Pinto, C., Kara, E., Masterson, M., Garcia, J.A., Fabian, A.C.,... Cusumano, G. (2022). Ejection-accretion connection in NLS1 AGN 1H 1934-063. Monthly Notices of the Royal Astronomical Society, 513(2), 1910-1924. https://doi.org/10.1093/mnras/stac1058
MLA:
Xu, Y., et al. "Ejection-accretion connection in NLS1 AGN 1H 1934-063." Monthly Notices of the Royal Astronomical Society 513.2 (2022): 1910-1924.
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