A detailed study of the nuclear region of Mrk 273

(2) Dipartimento di Astronomia; (3) Instituto de Astrofisica de Andalucia; (4) Jodrell Bank Observatory; D. Dallacasa (2); Italy; M.A. Peerez Torres (3); M. Bondi (1); Spain; T.W.B. Muxlow (4) ((1) Istituto di Radioastronomia; UK)

arxiv: astro-ph/0412659 · v1 · submitted 2004-12-29 · 🌌 astro-ph

A detailed study of the nuclear region of Mrk 273

M. Bondi (1) , D. Dallacasa (2) , M.A. Peerez Torres (3) , T.W.B. Muxlow (4) ((1) Istituto di Radioastronomia , Italy , (2) Dipartimento di Astronomia , Universita di Bologna , (3) Instituto de Astrofisica de Andalucia

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Spain (4) Jodrell Bank Observatory UK)

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keywords observationscomponentnuclearregioncompactconfirmsderivedetailed

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We present 5 GHz EVN+MERLIN observations of the nuclear region of the ultra luminous infrared galaxy Mrk 273. These observations confirms the detection, on the mas scale, of two resolved component labelled as N and SE in the literature. We use published VLBA observations at 1.4 GHz, at the same resolution, to derive spectral index information of component N and SE and discuss these findings in relation with different hypothesis (compact starburst or AGN) for the origin of the radio emission.

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A detailed study of the nuclear region of Mrk 273

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