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arxiv: 1812.01139 · v1 · submitted 2018-12-04 · 🌌 astro-ph.HE · astro-ph.GA

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

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classification 🌌 astro-ph.HE astro-ph.GA
keywords clumpydisc-windemissionformingmcg--03--58--007seyfertstarx-ray
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We report the results of a detailed analysis of a deep simultaneous $130\,\rm ks$ \textit{XMM-Newton & NuSTAR} observation of the nearby ($z=0.0315$) and bright ($L_{\rm bol}\sim3\times10^{45}\,\rm erg\,s^{-1}$) 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.

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