English

Evidence for a clumpy disc-wind in the star forming Seyfert\,2 galaxy MCG--03--58--007

High Energy Astrophysical Phenomena 2018-12-12 v1 Astrophysics of Galaxies

Abstract

We report the results of a detailed analysis of a deep simultaneous 130ks130\,\rm ks \textit{XMM-Newton & NuSTAR} observation of the nearby (z=0.0315z=0.0315) and bright (Lbol3×1045ergs1L_{\rm bol}\sim3\times10^{45}\,\rm erg\,s^{-1}) starburst-AGN Seyfert\,2 system: MCG--03--58--007. From the broadband fitting we show that most of the obscuration needs to be modeled with a toroidal type reprocessor such as \texttt{MYTorus} \citep{MurphyYaqoob09}. Nonetheless the signature of a powerful disc-wind is still apparent at higher energies and the observed rapid short-term X-ray spectral variability is more likely caused by a variable zone of highly ionized fast wind rather than by a neutral clumpy medium. We also detect X-ray emission from larger scale gas as seen from the presence of several soft narrow emission lines in the RGS, originating from a contribution of a weak star forming activity together with a dominant photoionized component from the AGN.

Keywords

Cite

@article{arxiv.1812.01139,
  title  = {Evidence for a clumpy disc-wind in the star forming Seyfert\,2 galaxy MCG--03--58--007},
  author = {G. A. Matzeu and V. Braito and J. N. Reeves and P. Severgnini and L. Ballo and A. Caccianiga and S. Campana and C. Cicone and R. Della Ceca and M. L. Parker and M. Santos-Lleó and N. Schartel},
  journal= {arXiv preprint arXiv:1812.01139},
  year   = {2018}
}

Comments

16 pages, 9 figures, accepted for publication in MNRAS