dc.contributor.author | Hardcastle, M.J. | |
dc.contributor.author | Worrall, D.M. | |
dc.contributor.author | Birkinshaw, M. | |
dc.date.accessioned | 2007-12-17T09:51:40Z | |
dc.date.available | 2007-12-17T09:51:40Z | |
dc.date.issued | 1999 | |
dc.identifier.citation | Hardcastle , M J , Worrall , D M & Birkinshaw , M 1999 , ' Extended X-ray emission from the BL Lac object PKS 0521-365 ' , Monthly Notices of the Royal Astronomical Society , vol. 305 , no. 2 , pp. 246-252 . https://doi.org/10.1046/j.1365-8711.1999.02353.x | |
dc.identifier.issn | 0035-8711 | |
dc.identifier.other | dspace: 2299/1196 | |
dc.identifier.other | ORCID: /0000-0003-4223-1117/work/30391142 | |
dc.identifier.uri | http://hdl.handle.net/2299/1196 | |
dc.description | The definitive version is available at www.blackwell-synergy.com. Copyright Blackwell Publishing DOI : 10.1046/j.1365-8711.1999.02353.x | |
dc.description.abstract | Models that seek to unify BL Lacs and low-power radio galaxies predict that the two types of object should show similar isotropically emitted X-ray emission. Testing this is usually limited by difficulties in separating strong X-ray emission from a BL Lac nucleus and surrounding low-surface brightness emission. In this paper we report ROSAT HRI observations of the z = 0.055 BL Lac object PKS 0521−365.We are able to separate a luminous extended X-ray component from the bright nucleus. Using a new radio map, we show that it is unlikely that the extended emission is due to inverse- Compton scattering of photons from the active nucleus, and instead interpret it as thermal emission from dense, rapidly cooling gas. This is a more extreme environment than is found in typical FRI radio galaxies, and may pose a problem for unified models. | en |
dc.format.extent | 426075 | |
dc.language.iso | eng | |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | |
dc.title | Extended X-ray emission from the BL Lac object PKS 0521-365 | en |
dc.contributor.institution | School of Physics, Astronomy and Mathematics | |
dc.contributor.institution | SPECS Deans Group | |
dc.contributor.institution | School of Physics, Engineering & Computer Science | |
dc.contributor.institution | Department of Physics, Astronomy and Mathematics | |
dc.contributor.institution | Centre for Astrophysics Research | |
dc.description.status | Peer reviewed | |
rioxxterms.versionofrecord | 10.1046/j.1365-8711.1999.02353.x | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |