Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/6609
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dc.contributor.authorKharb, P-
dc.contributor.authorO'Dea, C. P-
dc.contributor.authorBaum, S. A-
dc.contributor.authorHardcastle, M. J-
dc.contributor.authorDicken, D-
dc.contributor.authorCroston, J. H-
dc.contributor.authorMingo, B-
dc.contributor.authorNoel-Storr, J-
dc.date.accessioned2014-05-13T15:28:45Z-
dc.date.available2014-05-13T15:28:45Z-
dc.date.issued2014-06-01-
dc.identifier.citationMonthly Notices of the Royal Astronomical Society, Vol. 440, No. 4, pp. 2976-2987en
dc.identifier.issn1365-2966-
dc.identifier.urihttp://hdl.handle.net/2248/6609-
dc.descriptionRestricted Accessen
dc.description.abstractWe present the results of high-resolution VLBI (very long baseline interferometry) observations at 1.6 and 4.9 GHz of the radio-loud Seyfert galaxy, Mrk 6. These observations are able to detect a compact radio core in this galaxy for the first time. The core has an inverted spectral index (α1.64.9 = +1.0 ± 0.2) and a brightness temperature of 1 × 108 K. Three distinct radio components, which resemble jet elements and/or hotspots, are also detected. The position angles of these elongated jet elements point not only to a curved jet in Mrk 6, but also towards a connection between the AGN and the kpc-scale radio lobes/bubbles in this galaxy. Firmer constraints on the star formation rate provided by new Herschel observations (SFR < 0.8 M⊙ yr−1) make the starburst-wind-powered bubble scenario implausible. From plasma speeds, obtained via prior Chandra X-ray observations, and ram pressure balance arguments for the interstellar medium and radio bubbles, the north–south bubbles are expected to take 7.5 × 106 yr to form, and the east–west bubbles 1.4 × 106 yr. We suggest that the jet axis has changed at least once in Mrk 6 within the last ≈107 yr. A comparison of the nuclear radio-loudness of Mrk 6 and a small sample of Seyfert galaxies with a subset of low-luminosity FR I radio galaxies reveals a continuum in radio properties.en
dc.language.isoenen
dc.publisherOxford University Press on behalf of the Royal Astronomical Societyen
dc.relation.urihttp://dx.doi.org/10.1093/mnras/stu421en
dc.rights© Royal Astronomical Societyen
dc.subjectTechniques: High angular resolutionen
dc.subjectTechniques: Interferometricen
dc.subjectGalaxies: Activeen
dc.subjectGalaxies: Individual: Mrk 6en
dc.subjectGalaxies: Jetsen
dc.subjectGalaxies: Seyferten
dc.titleVery large baseline array observations of Mrk 6: probing the jet–lobe connectionen
dc.typeArticleen
Appears in Collections:IIAP Publications

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