The disturbance of a millisecond pulsar magnetosphere
Pulsar timing has enabled some of the strongest tests of fundamental physics. Central to the technique is the assumption that the detected radio pulses can be used to accurately measure the rotation of the pulsar. Here, we report on a broadband variation in the pulse profile of the millisecond pulsa...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal Article |
| Published: |
Institute of Physics Publishing
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/8923 |
| _version_ | 1848745800925970432 |
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| author | Shannon, Ryan Lentati, L. Kerr, M. Bailes, M. Bhat, N. Coles, W. Dai, S. Dempsey, J. Hobbs, G. Keith, M. Lasky, P. Levin, Y. Manchester, R. Oslowski, S. Ravi, V. Reardon, D. Rosado, P. Spiewak, R. Van Straten, W. Toomey, L. Wang, J. Wen, L. You, X. Zhu, X. |
| author_facet | Shannon, Ryan Lentati, L. Kerr, M. Bailes, M. Bhat, N. Coles, W. Dai, S. Dempsey, J. Hobbs, G. Keith, M. Lasky, P. Levin, Y. Manchester, R. Oslowski, S. Ravi, V. Reardon, D. Rosado, P. Spiewak, R. Van Straten, W. Toomey, L. Wang, J. Wen, L. You, X. Zhu, X. |
| author_sort | Shannon, Ryan |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Pulsar timing has enabled some of the strongest tests of fundamental physics. Central to the technique is the assumption that the detected radio pulses can be used to accurately measure the rotation of the pulsar. Here, we report on a broadband variation in the pulse profile of the millisecond pulsar J1643−1224. A new component of emission suddenly appears in the pulse profile, decays over four months, and results in a permanently modified pulse shape. Profile variations such as these may be the origin of timing noise observed in other millisecond pulsars. The sensitivity of pulsar-timing observations to gravitational radiation can be increased by accounting for this variability. |
| first_indexed | 2025-11-14T06:23:07Z |
| format | Journal Article |
| id | curtin-20.500.11937-8923 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:23:07Z |
| publishDate | 2016 |
| publisher | Institute of Physics Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-89232017-09-13T14:33:46Z The disturbance of a millisecond pulsar magnetosphere Shannon, Ryan Lentati, L. Kerr, M. Bailes, M. Bhat, N. Coles, W. Dai, S. Dempsey, J. Hobbs, G. Keith, M. Lasky, P. Levin, Y. Manchester, R. Oslowski, S. Ravi, V. Reardon, D. Rosado, P. Spiewak, R. Van Straten, W. Toomey, L. Wang, J. Wen, L. You, X. Zhu, X. Pulsar timing has enabled some of the strongest tests of fundamental physics. Central to the technique is the assumption that the detected radio pulses can be used to accurately measure the rotation of the pulsar. Here, we report on a broadband variation in the pulse profile of the millisecond pulsar J1643−1224. A new component of emission suddenly appears in the pulse profile, decays over four months, and results in a permanently modified pulse shape. Profile variations such as these may be the origin of timing noise observed in other millisecond pulsars. The sensitivity of pulsar-timing observations to gravitational radiation can be increased by accounting for this variability. 2016 Journal Article http://hdl.handle.net/20.500.11937/8923 10.3847/2041-8205/828/1/L1 Institute of Physics Publishing unknown |
| spellingShingle | Shannon, Ryan Lentati, L. Kerr, M. Bailes, M. Bhat, N. Coles, W. Dai, S. Dempsey, J. Hobbs, G. Keith, M. Lasky, P. Levin, Y. Manchester, R. Oslowski, S. Ravi, V. Reardon, D. Rosado, P. Spiewak, R. Van Straten, W. Toomey, L. Wang, J. Wen, L. You, X. Zhu, X. The disturbance of a millisecond pulsar magnetosphere |
| title | The disturbance of a millisecond pulsar magnetosphere |
| title_full | The disturbance of a millisecond pulsar magnetosphere |
| title_fullStr | The disturbance of a millisecond pulsar magnetosphere |
| title_full_unstemmed | The disturbance of a millisecond pulsar magnetosphere |
| title_short | The disturbance of a millisecond pulsar magnetosphere |
| title_sort | disturbance of a millisecond pulsar magnetosphere |
| url | http://hdl.handle.net/20.500.11937/8923 |