A Search for Giant Pulses from Millisecond Pulsars
We have searched for microsecond-timescale broadband emission from a sample of 18 millisecond pulsars. Our study places strong limits on such emission from several millisecond pulsars and shows that it is only present in a small subset of millisecond pulsars. Giant pulses of up to 64 times the mean...
| Main Authors: | , , , |
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| Format: | Journal Article |
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Institute of Physics Publishing, Inc.
2005
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/24278 |
| _version_ | 1848751383950393344 |
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| author | Knight, H. Bailes, M. Manchester, R. Ord, Stephen |
| author_facet | Knight, H. Bailes, M. Manchester, R. Ord, Stephen |
| author_sort | Knight, H. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We have searched for microsecond-timescale broadband emission from a sample of 18 millisecond pulsars. Our study places strong limits on such emission from several millisecond pulsars and shows that it is only present in a small subset of millisecond pulsars. Giant pulses of up to 64 times the mean pulse energy were detected from PSR J1823-3021A in the globular cluster NGC 6624. In contrast to the giant pulses of PSR B1937+21, nearly all of the giant pulses from PSR J1823-3021A were distributed within the trailing half of the main-pulse component of the integrated pulse profile. The fact that no giant pulses were observed on the leading side of the main-pulse component suggests that giant pulses are preferentially emitted closer to the last open field line than ordinary emission. The correlation between giant pulse emissivity and spin-down luminosity in millisecond pulsars suggests that the high period derivative of PSR J1823-3021A is intrinsic and is not just an artifact of its acceleration in the gravitational potential of NGC 6624. |
| first_indexed | 2025-11-14T07:51:52Z |
| format | Journal Article |
| id | curtin-20.500.11937-24278 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:51:52Z |
| publishDate | 2005 |
| publisher | Institute of Physics Publishing, Inc. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-242782017-09-13T15:08:55Z A Search for Giant Pulses from Millisecond Pulsars Knight, H. Bailes, M. Manchester, R. Ord, Stephen Stars: Pulsars: Individual: Alphanumeric: PSR J1823-3021A Stars: Pulsars: General We have searched for microsecond-timescale broadband emission from a sample of 18 millisecond pulsars. Our study places strong limits on such emission from several millisecond pulsars and shows that it is only present in a small subset of millisecond pulsars. Giant pulses of up to 64 times the mean pulse energy were detected from PSR J1823-3021A in the globular cluster NGC 6624. In contrast to the giant pulses of PSR B1937+21, nearly all of the giant pulses from PSR J1823-3021A were distributed within the trailing half of the main-pulse component of the integrated pulse profile. The fact that no giant pulses were observed on the leading side of the main-pulse component suggests that giant pulses are preferentially emitted closer to the last open field line than ordinary emission. The correlation between giant pulse emissivity and spin-down luminosity in millisecond pulsars suggests that the high period derivative of PSR J1823-3021A is intrinsic and is not just an artifact of its acceleration in the gravitational potential of NGC 6624. 2005 Journal Article http://hdl.handle.net/20.500.11937/24278 10.1086/429533 Institute of Physics Publishing, Inc. unknown |
| spellingShingle | Stars: Pulsars: Individual: Alphanumeric: PSR J1823-3021A Stars: Pulsars: General Knight, H. Bailes, M. Manchester, R. Ord, Stephen A Search for Giant Pulses from Millisecond Pulsars |
| title | A Search for Giant Pulses from Millisecond Pulsars |
| title_full | A Search for Giant Pulses from Millisecond Pulsars |
| title_fullStr | A Search for Giant Pulses from Millisecond Pulsars |
| title_full_unstemmed | A Search for Giant Pulses from Millisecond Pulsars |
| title_short | A Search for Giant Pulses from Millisecond Pulsars |
| title_sort | search for giant pulses from millisecond pulsars |
| topic | Stars: Pulsars: Individual: Alphanumeric: PSR J1823-3021A Stars: Pulsars: General |
| url | http://hdl.handle.net/20.500.11937/24278 |