dc.contributor.author | Hardcastle, M.J. | |
dc.contributor.author | Worrall, D.M. | |
dc.contributor.author | Birkinshaw, M. | |
dc.contributor.author | Laing, R.A. | |
dc.contributor.author | Bridle, A.H. | |
dc.date.accessioned | 2007-08-11T20:22:23Z | |
dc.date.available | 2007-08-11T20:22:23Z | |
dc.date.issued | 2002-07 | |
dc.identifier.citation | Hardcastle , M J , Worrall , D M , Birkinshaw , M , Laing , R A & Bridle , A H 2002 , ' A Chandra observation of the X-ray environment and jet of 3C 31 ' , Monthly Notices of the Royal Astronomical Society , vol. 334 , no. 1 , pp. 182-192 . | |
dc.identifier.issn | 0035-8711 | |
dc.identifier.other | dspace: 2299/374 | |
dc.identifier.other | ORCID: /0000-0003-4223-1117/work/30391121 | |
dc.identifier.uri | http://hdl.handle.net/2299/374 | |
dc.description.abstract | We have used a deep Chandra observation of the central regions of the twin-jet FRI radio galaxy 3C 31 to resolve the thermal X-ray emission in the central few kiloparsecs of the host galaxy, NGC 383, where the jets are thought to be decelerating rapidly. This allows us to make high-precision measurements of the density, temperature and pressure distributions in this region, and to show that the X-ray emitting gas in the centre of the galaxy has a cooling time of only 5 × 107 years. In a companion paper these measurements are used to place constraints on models of the jet dynamics. A previously unknown one-sided X-ray jet in 3C 31, extending up to 8 arcsec from the nucleus, is detected and resolved. Its structure and steep X-ray spectrum are similar to those of X-ray jets known in other FRI sources, and we attribute the radiation to synchrotron emission from a high-energy population of electrons. In situ particle acceleration is required in the region of the jet where bulk deceleration is taking place. We also present X-ray spectra and luminosities of the galaxies in the Arp 331 chain of which NGC 383 is a member. The spectrum and spatial properties of the nearby bright X- ray source 1E 0104+3153 are used to argue that the soft X-ray emission is mostly due to a foreground group of galaxies rather than to the background broad absorption-line quasar. | en |
dc.format.extent | 491781 | |
dc.language.iso | eng | |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | |
dc.subject | Astronomy | |
dc.title | A Chandra observation of the X-ray environment and jet of 3C 31 | 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.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |