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The extreme X-ray spectrum and iron line of PG 2112+059

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ESA Earth Online2026-06-22 收录
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The 70ks XMMNewton observation of the Xray weak quasars PG 2112+059 in lowstate shows an Xray spectrum with characteristics not reported so far for anyother AGN. The quasar not only shows an extremely strong relativistic broad ironline, the whole spectrum can be understood as relativistically blurredreflection from a rotating inner disk around a supermassive Kerr black hole,whereas the usual powerlaw continuum is completely suppressed. We propose tomonitor PG 2112+059 with two 70ks observations separated by half a year and, ifthe low state is detected, to study the detailed properties of the broad ironline with a (triggered) 220ks observations. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]

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European Space Agency
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