The Fading of the Narrow-Line Region in 3C 390.3: Erratum

Details The Fading of the Narrow-Line Region in 3C 390.3: Erratum The Fading of the Narrow-Line Region in 3C 390.3: Erratum

Jul 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...330l..81c&link_type=abstract

Astrophysical Journal Letters v.330, p.L81

Astronomy and Astrophysics

Astronomy

Errata, Addenda

Scientific paper

The Letter "The Fading of the Narrow-Line Region in 3C 390.3" by J. Clavel and W. Wamsteker (Ap. J. [Letters], 320, L9 [1987]) contains an error in the last two sentences of section IIIb: The density we compute for the broad line region (BLR) gas is wrong by a factor of 10 exactly and should read 10^11^ cm^-3^ instead of 10^10^. Such a density is about 30 times larger than the canonical 10^9.5^ cm^-3^ value generally used in model calculations but similar to the density inferred for the BLR in NGC 4151 by J. Clavel et al. (Ap. J., 321, 251 [1987]). The authors are grateful to Paolo Padovani from STScI for bringing this error to their attention.

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