{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,29]],"date-time":"2025-09-29T22:24:19Z","timestamp":1759184659728},"reference-count":14,"publisher":"Cambridge University Press (CUP)","issue":"1","license":[{"start":{"date-parts":[[2013,3,5]],"date-time":"2013-03-05T00:00:00Z","timestamp":1362441600000},"content-version":"unspecified","delay-in-days":4081,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":["www.cambridge.org"],"crossmark-restriction":true},"short-container-title":["Publ. &amp;#x0096; Astron. Soc. Aust"],"published-print":{"date-parts":[[2002]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>We present the kpc-scale behaviour of the powerful extragalactic radio source Hercules A and the behaviour of the intracluster gas in which the radio source is situated. We have found that Hercules A exhibits a strong Laing-Garrington effect. The X-ray observations have revealed an extended X-ray emission elongated along the radio galaxy axis. The estimated temperature of the cluster is <jats:italic>kT<\/jats:italic>=2.45 keV and the central electron density is <jats:italic>n<\/jats:italic><jats:sub>\u25cb<\/jats:sub>\u22437.8\u00d710<jats:sup>\u22123<\/jats:sup> cm<jats:sup>\u22123<\/jats:sup> which reveals a hot, dense environment in which Hercules A is situated. From the combined study of the radio and X-ray data we have estimated a central value of 3 \u2272 <jats:italic>B<\/jats:italic><jats:sub>\u25cb<\/jats:sub>(\u03bcG)\u22729.<\/jats:p><jats:p>We also present the most recent results from the analysis of the radio data on the pc-scale structure of the radio galaxy, observed at 18 cm by the EVN\u2013MERLIN array. A faint but compact radio source, coincident with the optical centre of Hercules A, was detected by the EVN at 18 mas resolution. The total flux density of the EVN core is 14.6 mJy. Its angular size is 18\u00d77 mas with a position angle of \u2243139\u00b0. There is also evidence for extended emission in the NW\u2013SE direction, most probably from the eastern pc-scale jet. If this is true then there is a misalignment between the direction of the pc-eastern and the aligned kpc-scale jets of \u224335\u00b0.<\/jats:p>","DOI":"10.1071\/as01082","type":"journal-article","created":{"date-parts":[[2002,9,16]],"date-time":"2002-09-16T01:33:22Z","timestamp":1032140002000},"page":"69-72","update-policy":"http:\/\/dx.doi.org\/10.1017\/policypage","source":"Crossref","is-referenced-by-count":9,"title":["Probing the pc- and kpc-scale Environment of the Powerful Radio Galaxy Hercules A"],"prefix":"10.1017","volume":"19","author":[{"given":"Nectaria A. B.","family":"Gizani","sequence":"first","affiliation":[]},{"given":"M. A.","family":"Garrett","sequence":"additional","affiliation":[]},{"given":"J. P.","family":"Leahy","sequence":"additional","affiliation":[]}],"member":"56","published-online":{"date-parts":[[2013,3,5]]},"reference":[{"key":"S1323358000006846_ref013","doi-asserted-by":"publisher","DOI":"10.1086\/133165"},{"key":"S1323358000006846_ref010","first-page":"19","volume-title":"Proceedings of the 5th European VLBI Network Symposium, eds J. E. Conway, A. G. Polatidis, R. S. Booth, and Y. M. Pihlstr\u00f6m","author":"Gizani","year":"2000"},{"key":"S1323358000006846_ref009","first-page":"639","volume":"43","author":"Gizani","year":"1999","journal-title":"EVN\/JIVE. Symposium No. 4, eds M. A. Garrett, R. M. Campbell, and L. I. Gurvits (Elsevier Science), NewAR"},{"key":"S1323358000006846_ref002","doi-asserted-by":"publisher","DOI":"10.1086\/310131"},{"key":"S1323358000006846_ref012","doi-asserted-by":"publisher","DOI":"10.1038\/331149a0"},{"key":"S1323358000006846_ref008","unstructured":"Gizani N. A. B. 1997, Environments of Double Radio Sources Associated with Active Galactic Nuclei, PhD Thesis, Jodrell Bank Observatories, University of Manchester, UK"},{"key":"S1323358000006846_ref004","first-page":"459","volume":"257","author":"Fejes","year":"1992","journal-title":"AandA"},{"key":"S1323358000006846_ref006","doi-asserted-by":"publisher","DOI":"10.1038\/331147a0"},{"key":"S1323358000006846_ref003","doi-asserted-by":"publisher","DOI":"10.1038\/308043a0"},{"key":"S1323358000006846_ref014","first-page":"78","volume":"328","author":"Saripalli","year":"1997","journal-title":"AandA"},{"key":"S1323358000006846_ref005","doi-asserted-by":"publisher","DOI":"10.1086\/172601"},{"key":"S1323358000006846_ref001","doi-asserted-by":"publisher","DOI":"10.1086\/190036"},{"key":"S1323358000006846_ref011","first-page":"873","volume":"329","author":"Krichbaum","year":"1998","journal-title":"AandA"},{"key":"S1323358000006846_ref007","doi-asserted-by":"publisher","DOI":"10.1086\/174799"}],"container-title":["Publications of the Astronomical Society of Australia"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S1323358000006846","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,5,7]],"date-time":"2019-05-07T17:25:16Z","timestamp":1557249916000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S1323358000006846\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2002]]},"references-count":14,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2002]]}},"alternative-id":["S1323358000006846"],"URL":"https:\/\/doi.org\/10.1071\/as01082","relation":{},"ISSN":["1323-3580","1448-6083"],"issn-type":[{"value":"1323-3580","type":"print"},{"value":"1448-6083","type":"electronic"}],"subject":[],"published":{"date-parts":[[2002]]},"assertion":[{"value":"Copyright \u00a9 Astronomical Society of Australia 2002","name":"license","label":"License","group":{"name":"copyright_and_licensing","label":"Copyright and Licensing"}}]}}