Polarimetry of the Eclipsing Pulsar PSR J1748-2446A
© 2018. The American Astronomical Society. All rights reserved.. Observations with the Parkes radio telescope of the eclipsing millisecond binary pulsar PSR J1748-2446A, which is in the globular cluster Terzan 5, are presented. These include the first observations of this pulsar in the 3 GHz frequen...
| Main Authors: | , , , , |
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| Format: | Journal Article |
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Institute of Physics Publishing
2018
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| Online Access: | http://hdl.handle.net/20.500.11937/71509 |
| _version_ | 1848762498914713600 |
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| author | You, X. Manchester, R. Coles, W. Hobbs, G. Shannon, Ryan |
| author_facet | You, X. Manchester, R. Coles, W. Hobbs, G. Shannon, Ryan |
| author_sort | You, X. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2018. The American Astronomical Society. All rights reserved.. Observations with the Parkes radio telescope of the eclipsing millisecond binary pulsar PSR J1748-2446A, which is in the globular cluster Terzan 5, are presented. These include the first observations of this pulsar in the 3 GHz frequency band, along with simultaneous observations in the 700 MHz band, and new observations around 1400 MHz. We show that the pulsar signal is not eclipsed in the 3 GHz band and observe the known eclipses in the lower-frequency bands. We find that the observed pulse signal becomes depolarized during particular orbital phases and postulate that this depolarization occurs because of rotation-measure fluctuations resulting from turbulence in the stellar wind responsible for the eclipses. |
| first_indexed | 2025-11-14T10:48:32Z |
| format | Journal Article |
| id | curtin-20.500.11937-71509 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:48:32Z |
| publishDate | 2018 |
| publisher | Institute of Physics Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-715092018-12-13T09:34:21Z Polarimetry of the Eclipsing Pulsar PSR J1748-2446A You, X. Manchester, R. Coles, W. Hobbs, G. Shannon, Ryan © 2018. The American Astronomical Society. All rights reserved.. Observations with the Parkes radio telescope of the eclipsing millisecond binary pulsar PSR J1748-2446A, which is in the globular cluster Terzan 5, are presented. These include the first observations of this pulsar in the 3 GHz frequency band, along with simultaneous observations in the 700 MHz band, and new observations around 1400 MHz. We show that the pulsar signal is not eclipsed in the 3 GHz band and observe the known eclipses in the lower-frequency bands. We find that the observed pulse signal becomes depolarized during particular orbital phases and postulate that this depolarization occurs because of rotation-measure fluctuations resulting from turbulence in the stellar wind responsible for the eclipses. 2018 Journal Article http://hdl.handle.net/20.500.11937/71509 10.3847/1538-4357/aadee0 Institute of Physics Publishing restricted |
| spellingShingle | You, X. Manchester, R. Coles, W. Hobbs, G. Shannon, Ryan Polarimetry of the Eclipsing Pulsar PSR J1748-2446A |
| title | Polarimetry of the Eclipsing Pulsar PSR J1748-2446A |
| title_full | Polarimetry of the Eclipsing Pulsar PSR J1748-2446A |
| title_fullStr | Polarimetry of the Eclipsing Pulsar PSR J1748-2446A |
| title_full_unstemmed | Polarimetry of the Eclipsing Pulsar PSR J1748-2446A |
| title_short | Polarimetry of the Eclipsing Pulsar PSR J1748-2446A |
| title_sort | polarimetry of the eclipsing pulsar psr j1748-2446a |
| url | http://hdl.handle.net/20.500.11937/71509 |