X-ray observations of NGC 1365: time-resolved eclipse of the X-ray source
classification
🌌 astro-ph
keywords
x-raycompton-thinsizevariationabsorberbackchandrachange
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We present an extraordinary variation of the X-ray spectrum of the obscured AGN in NGC 1365, which was observed by Chandra to change from Compton-thin to Compton-thick and back to Compton-thin in four days. This fast variation imply a a size of ~10^14 cm for the emitting region, and an extremely compact size (~10^16 cm) of the clumpy circumnuclear absorber.
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