An e-VLBI image of SN1987A from Australian radio telescopes and the JIVE correlator
We present an image of the expanding shell of the remnant associated with supernova1987A at the highest resolution to date at radio wavelengths, 85 milliarcseconds, using the e-VLBI technique, from 2007 October. This is comparable to the angular resolution obtainedwith the Hubble Space Telescope and...
| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Conference Paper |
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Proceedings of Science
2009
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| Online Access: | http://pos.sissa.it/archive/conferences/082/100/EXPReS09_100.pdf http://hdl.handle.net/20.500.11937/46363 |
| _version_ | 1848757536539279360 |
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| author | Tingay, Steven Phillips, C.J. Amy, S.W. Tzioumis, A.K. Kettenis, M. Boven, E.P. Szomoru, A. Paragi, Z. van Langevelde, H. Verkouter, H. Phillips, I. Cowie, A. Tam, T. Huisman, W. |
| author_facet | Tingay, Steven Phillips, C.J. Amy, S.W. Tzioumis, A.K. Kettenis, M. Boven, E.P. Szomoru, A. Paragi, Z. van Langevelde, H. Verkouter, H. Phillips, I. Cowie, A. Tam, T. Huisman, W. |
| author_sort | Tingay, Steven |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We present an image of the expanding shell of the remnant associated with supernova1987A at the highest resolution to date at radio wavelengths, 85 milliarcseconds, using the e-VLBI technique, from 2007 October. This is comparable to the angular resolution obtainedwith the Hubble Space Telescope and is approximately 3 times higher than has been possiblewith the Australia Telescope Compact Array or 5 times higher than with the Chandra X-rayObservatory. The e-VLBI data at 1.4 GHz show good agreement with the ATCA data at 9GHz, resolving the substructure in the equatorial brightness enhancements of the remnant(allowing for the fact that the e-VLBI observations are sensitive to structure on angular scales<0.4?). We place a 3s upper limit on the time-averaged pulsar emission or a compact pulsarpowerednebula at this frequency of 1 mJy/beam. These observations were made usingtelescopes in Australia, with the data transferred in real-time to the European VLBI Networkcorrelator at the Joint Institute for VLBI in Europe, in The Netherlands, via high-speednetworks, as part of the EXPReS project, demonstrating the feasibility of a real-time global e-VLBI network at 512 Mbps per antenna. |
| first_indexed | 2025-11-14T09:29:39Z |
| format | Conference Paper |
| id | curtin-20.500.11937-46363 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:29:39Z |
| publishDate | 2009 |
| publisher | Proceedings of Science |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-463632017-10-02T02:27:58Z An e-VLBI image of SN1987A from Australian radio telescopes and the JIVE correlator Tingay, Steven Phillips, C.J. Amy, S.W. Tzioumis, A.K. Kettenis, M. Boven, E.P. Szomoru, A. Paragi, Z. van Langevelde, H. Verkouter, H. Phillips, I. Cowie, A. Tam, T. Huisman, W. We present an image of the expanding shell of the remnant associated with supernova1987A at the highest resolution to date at radio wavelengths, 85 milliarcseconds, using the e-VLBI technique, from 2007 October. This is comparable to the angular resolution obtainedwith the Hubble Space Telescope and is approximately 3 times higher than has been possiblewith the Australia Telescope Compact Array or 5 times higher than with the Chandra X-rayObservatory. The e-VLBI data at 1.4 GHz show good agreement with the ATCA data at 9GHz, resolving the substructure in the equatorial brightness enhancements of the remnant(allowing for the fact that the e-VLBI observations are sensitive to structure on angular scales<0.4?). We place a 3s upper limit on the time-averaged pulsar emission or a compact pulsarpowerednebula at this frequency of 1 mJy/beam. These observations were made usingtelescopes in Australia, with the data transferred in real-time to the European VLBI Networkcorrelator at the Joint Institute for VLBI in Europe, in The Netherlands, via high-speednetworks, as part of the EXPReS project, demonstrating the feasibility of a real-time global e-VLBI network at 512 Mbps per antenna. 2009 Conference Paper http://hdl.handle.net/20.500.11937/46363 http://pos.sissa.it/archive/conferences/082/100/EXPReS09_100.pdf http://creativecommons.org/licenses/by-nc-sa/3.0/ Proceedings of Science fulltext |
| spellingShingle | Tingay, Steven Phillips, C.J. Amy, S.W. Tzioumis, A.K. Kettenis, M. Boven, E.P. Szomoru, A. Paragi, Z. van Langevelde, H. Verkouter, H. Phillips, I. Cowie, A. Tam, T. Huisman, W. An e-VLBI image of SN1987A from Australian radio telescopes and the JIVE correlator |
| title | An e-VLBI image of SN1987A from Australian radio telescopes and the JIVE correlator |
| title_full | An e-VLBI image of SN1987A from Australian radio telescopes and the JIVE correlator |
| title_fullStr | An e-VLBI image of SN1987A from Australian radio telescopes and the JIVE correlator |
| title_full_unstemmed | An e-VLBI image of SN1987A from Australian radio telescopes and the JIVE correlator |
| title_short | An e-VLBI image of SN1987A from Australian radio telescopes and the JIVE correlator |
| title_sort | e-vlbi image of sn1987a from australian radio telescopes and the jive correlator |
| url | http://pos.sissa.it/archive/conferences/082/100/EXPReS09_100.pdf http://hdl.handle.net/20.500.11937/46363 |