PKS 1018–42: A Powerful, Kinetically Dominated Quasar
We have identified PKS 1018-42 as a radio galaxy with extraordinarily powerful jets, over twice as powerful as any 3CR source of equal or lesser redshift except one (3C 196). It is perhaps the most intrinsically powerful extragalactic radio source in the still poorly explored southern hemisphere. PK...
| Main Authors: | , |
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| Format: | Journal Article |
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The American Astronomical Society
2006
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| Online Access: | http://hdl.handle.net/20.500.11937/37327 |
| _version_ | 1848755016113848320 |
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| author | Punsly, B. Tingay, Steven |
| author_facet | Punsly, B. Tingay, Steven |
| author_sort | Punsly, B. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We have identified PKS 1018-42 as a radio galaxy with extraordinarily powerful jets, over twice as powerful as any 3CR source of equal or lesser redshift except one (3C 196). It is perhaps the most intrinsically powerful extragalactic radio source in the still poorly explored southern hemisphere. PKS 1018-42 belongs to the class of FR II objects that are kinetically dominated; the jet kinetic luminosity, Q ~ 6.5 × 1046 ergs s-1 (calculated at 151 MHz), is 3.4 times larger than the total thermal luminosity (IR to X-ray) of the accretion flow, Lbol ~ 1.9 × 1046 ergs s-1. It is the fourth most kinetically dominated quasar that we could verify from existing radio data. From a review of the literature, we find that kinetically dominated quasars such as PKS 1018-42 are rare, and we list the five most kinetically dominated sources found from our review. Our results for PKS 1018-42 are based on new observations from the Australia Telescope Compact Array. |
| first_indexed | 2025-11-14T08:49:36Z |
| format | Journal Article |
| id | curtin-20.500.11937-37327 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:49:36Z |
| publishDate | 2006 |
| publisher | The American Astronomical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-373272017-12-05T07:27:01Z PKS 1018–42: A Powerful, Kinetically Dominated Quasar Punsly, B. Tingay, Steven We have identified PKS 1018-42 as a radio galaxy with extraordinarily powerful jets, over twice as powerful as any 3CR source of equal or lesser redshift except one (3C 196). It is perhaps the most intrinsically powerful extragalactic radio source in the still poorly explored southern hemisphere. PKS 1018-42 belongs to the class of FR II objects that are kinetically dominated; the jet kinetic luminosity, Q ~ 6.5 × 1046 ergs s-1 (calculated at 151 MHz), is 3.4 times larger than the total thermal luminosity (IR to X-ray) of the accretion flow, Lbol ~ 1.9 × 1046 ergs s-1. It is the fourth most kinetically dominated quasar that we could verify from existing radio data. From a review of the literature, we find that kinetically dominated quasars such as PKS 1018-42 are rare, and we list the five most kinetically dominated sources found from our review. Our results for PKS 1018-42 are based on new observations from the Australia Telescope Compact Array. 2006 Journal Article http://hdl.handle.net/20.500.11937/37327 10.1086/503277 The American Astronomical Society unknown |
| spellingShingle | Punsly, B. Tingay, Steven PKS 1018–42: A Powerful, Kinetically Dominated Quasar |
| title | PKS 1018–42: A Powerful, Kinetically Dominated Quasar |
| title_full | PKS 1018–42: A Powerful, Kinetically Dominated Quasar |
| title_fullStr | PKS 1018–42: A Powerful, Kinetically Dominated Quasar |
| title_full_unstemmed | PKS 1018–42: A Powerful, Kinetically Dominated Quasar |
| title_short | PKS 1018–42: A Powerful, Kinetically Dominated Quasar |
| title_sort | pks 1018–42: a powerful, kinetically dominated quasar |
| url | http://hdl.handle.net/20.500.11937/37327 |