Astronomy and Astrophysics – Astrophysics
Scientific paper
2004-01-13
Astrophys.J. 606 (2004) 78-84
Astronomy and Astrophysics
Astrophysics
12 pages, includes 4 figures, Accepted for publication in ApJ
Scientific paper
10.1086/382743
We present new results uncovered by a re-analysis of a Chandra observation of the gravitationally lensed, low-ionization broad absorption line (LoBAL) quasar H 1413+117. Previous analyses of the same Chandra observation led to the detection of a strong, redshifted Fe Kalpha line from the combined spectrum of all images. We show that the redshifted Fe Kalpha line is only significant in the brighter image A. The X-ray flux fraction of image A is larger by a factor of 1.55 +/- 0.17 than the optical R-band flux fraction, indicating that image A is significantly enhanced in the X-ray band. We also find that the Fe Kalpha line and the continuum are enhanced by different factors. A microlensing event could explain both the energy-dependent magnification and the significant detection of Fe Kalpha line emission in the spectrum of image A only. In the context of this interpretation we provide constraints on the spatial extent of the inferred scattered continuum and reprocessed Fe Kalpha line emission regions in a LoBAL quasar.
Agol Eric
Chartas George
Eracleous Michael
Gallagher Sarah C.
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