Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apj...421l..95f&link_type=abstract
Astrophysical Journal Letters v.421, p.L95
Astronomy and Astrophysics
Astronomy
Errata, Addenda
Scientific paper
In the Letter "OSSE Observations of the Bright Seyfert 1 Galaxy IC 4329A" by A. C. Fabian, K. Nandra, A. Celotti, M. J. Rees, J. E. Grove, and W. N. Johnson (ApJ, 416, L57 [1993]), there was a normalization error of a factor of 4 in the OSSE detector response matrix used. Therefore, the OSSE spectrum shown in Figure 4 should be increased by this factor relative to the Ginga data. This weakens the evidence for a spectral break, which must now have an e-folding energy greater than 350 keV. A paper discussing the reanalysis of the data, and the theoretical implications, is in preparation.
Celotti Annalisa
Fabian Andrea C.
Grove Eric J.
Johnson Neil W.
Nandra Kirpal
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