The Nuclear Spectrum of the Radio Galaxy NGC 5128 (Centaurus A) | Zendy

Chris Simpson | Zendy; V. S. Meadows | Zendy

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The Nuclear Spectrum of the Radio Galaxy NGC 5128 (Centaurus A)

Author(s) -

Chris Simpson,

V. S. Meadows

Publication year - 1998

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/311616

Subject(s) - centaurus a , radio galaxy , astrophysics , physics , x shaped radio galaxy , galaxy , astronomy , spectrum (functional analysis) , quantum mechanics

We present near-infrared spectra of the nuclear disk in the nearby radiogalaxy NGC 5128 (Centaurus A). On the basis of the observed strengths of the [SIII] 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 thenuclear region is powered by shocks rather than photoionization.Comment: 12 pages including 2 figures, accepted by ApJ Letter

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