The nuclear spectrum of the radio galaxy NGC 5128 (Centaurus A)

Details The nuclear spectrum of the radio galaxy NGC 5128 (Centaurus A) The nuclear spectrum of the radio galaxy NGC 5128 (Centaurus A)

1998-07-30

arxiv.org/abs/astro-ph/9807313v1

Astronomy and Astrophysics

Astrophysics

12 pages including 2 figures, accepted by ApJ Letters

Scientific paper

10.1086/311616

We present near-infrared spectra of the nuclear disk in the nearby radio
galaxy NGC 5128 (Centaurus A). On the basis of the observed strengths of the [S
III] 0.9532um and [Fe II] 1.2567um lines, we classify NGC 5128 as a LINER.
Modeling of the strengths of these and additional lines suggests that the
nuclear region is powered by shocks rather than photoionization.

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