The near-IR and milliarcsec radio structure of PKS 1345 + 125

Astronomy and Astrophysics – Astronomy

Scientific paper

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Astronomical Photometry, Galactic Nuclei, Infrared Sources (Astronomy), Near Infrared Radiation, Radio Astronomy, Seyfert Galaxies, Galactic Structure, Infrared Astronomy Satellite, Luminosity, Radio Emission, Spatial Resolution

Scientific paper

Near-IR photometry at high spatial resolution and six cm radio observations of the central regions of the Seyfert galaxy PKS 1345 + 125, which is a radio-loud and an ultraluminous IRAS system, is presented. The radio structure is resolved into a linear feature misaligned by about 49 deg with respect to the position angle defining the two near-IR nuclei. This indicates that the previously observed optical line emission within the western Seyfert nucleus is not due to any narrow-line area or extended narrow-line area associated with the radio elliptical, therefore distinguishing PKS 1345 + 125 from archetypal double-nucleus Seyferts.

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