dc.contributor.author | Kharb, P. | |
dc.contributor.author | O'Dea, C.P. | |
dc.contributor.author | Baum, S.A. | |
dc.contributor.author | Hardcastle, M.J. | |
dc.contributor.author | Dicken, D. | |
dc.contributor.author | Croston, J. H. | |
dc.contributor.author | Mingo, B. | |
dc.contributor.author | Noel-Storr, J. | |
dc.date.accessioned | 2015-09-10T12:58:45Z | |
dc.date.available | 2015-09-10T12:58:45Z | |
dc.date.issued | 2014-06-01 | |
dc.identifier.citation | Kharb , P , O'Dea , C P , Baum , S A , Hardcastle , M J , Dicken , D , Croston , J H , Mingo , B & Noel-Storr , J 2014 , ' Very Large Baseline Array observations of Mrk 6 : probing the jet-lobe connection ' , Monthly Notices of the Royal Astronomical Society , vol. 440 , no. 4 , pp. 2976-2987 . https://doi.org/10.1093/mnras/stu421 | |
dc.identifier.issn | 0035-8711 | |
dc.identifier.uri | http://hdl.handle.net/2299/16426 | |
dc.description.abstract | We 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 (α1.6 4.9 = +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.format.extent | 12 | |
dc.format.extent | 1037068 | |
dc.language.iso | eng | |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | |
dc.subject | Galaxies: active | |
dc.subject | Galaxies: individual: mrk 6 | |
dc.subject | Galaxies: jets | |
dc.subject | Galaxies: seyfert | |
dc.subject | Techniques: high angular resolution | |
dc.subject | Techniques: interferometric | |
dc.title | Very Large Baseline Array observations of Mrk 6 : probing the jet-lobe connection | en |
dc.contributor.institution | School of Physics, Astronomy and Mathematics | |
dc.contributor.institution | Centre for Astrophysics Research (CAR) | |
dc.description.status | Peer reviewed | |
rioxxterms.versionofrecord | 10.1093/mnras/stu421 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |