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arXiv · 0711.0002

XMM-Newton Detection of a Compton-thick AGN in the 1-Jy ULIRG/LINER F04103-2838

Stacy H. Teng·S. Veilleux·A. S. Wilson·A. J. Young·D. B. Sanders·N. M. Nagar
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Abstract

We report on the detection of Fe Kalpha emission in F04103$-$2838, an ultraluminous infrared galaxy (ULIRG; log[L$_{\rm IR}$/L$_\odot$] $\ge$ 12) that is optically classified as a LINER. Previous {\it Chandra} observations suggested the presence of both a starburst and an AGN in this source. A deeper ($\sim$20 ksec) {\it XMM-Newton} spectrum reveals an Fe Kalpha line at rest frame energy $\sim$6.4 keV, consistent with cold neutral iron. The best-fit spectral model indicates the Fe Kalpha line has an equivalent width of $\sim$1.6 keV. The hard X-ray emission is dominated by a Compton-thick AGN with intrinsic 0.2--10 keV luminosity $\sim10^{44}$ ergs s$^{-1}$, while the soft X-ray emission is from $\sim$0.1 keV gas attributed to the starburst. The X-ray spectrum of this source bears a striking resemblance to that of the archetypal luminous infrared galaxy NGC 6240 despite differences in merger state and infrared properties.

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Stacy H. Teng, S. Veilleux, A. S. Wilson, A. J. Young, D. B. Sanders, N. M. Nagar. 2007-10-31. XMM-Newton Detection of a Compton-thick AGN in the 1-Jy ULIRG/LINER F04103-2838. https://doi.org/10.1086/524926

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