Astronomy and Astrophysics – Astrophysics
Scientific paper
2003-08-20
Mon.Not.Roy.Astron.Soc.344:L80,2003
Astronomy and Astrophysics
Astrophysics
6 pages, 4 figures, accepted for publication in MNRAS
Scientific paper
10.1046/j.1365-8711.2003.07078.x
We present a near-IR spectrum of the nearby radio galaxy PKS1549-79 (z=0153). These data were taken with the aim of testing the idea that this object contains a quasar nucleus that is moderately extinguished, despite evidence that its radio jet points close to our line-of-sight. We detect broad Paschen Alpha emission (FWHM ~1745 km/s), relatively bright continuum emission, and a continuum slope consistent with a reddened quasar spectrum (3.1 < Av < 7.3), all emitted by an unresolved point source. Therefore we conclude that we have, indeed, detected a hidden quasar nucleus in PKS1549-79. Combined with previous results, these observations are consistent with the idea that PKS1549-79 is a young radio source in which the cocoon of debric left over from the triggering events has not yet been swept aside by circumnuclear outflows.
Bellamy M. J.
Holt Jackie
Morganti Rafaella
Tadhunter Clive N.
Taylor Melvin D.
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