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A broad iron K alpha line at z=1.146

Andrea Comastri·Marcella Brusa·Francesca Civano
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Abstract

We report the discovery of a strong iron K alpha line in the hard X-ray selected source CXOJ 123716.7+621733 in the Chandra Deep Field North survey at z=1.146. The analysis is made possible by the very deep exposure ~2 Ms and low background of the ACIS detector. The line profile seems to be inconsistent with a narrow feature. The best fit solution is achieved with a broad line. Most of the flux in the broad component originates at energies below 6.4 keV with a shape similar to that expected from emission in the innermost regions of the accretion disk.

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Andrea Comastri, Marcella Brusa, Francesca Civano. 2004-04-19. A broad iron K alpha line at z=1.146. https://doi.org/10.1111/j.1365-2966.2004.07929.x

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