Radio properties of rotating radio transients - I. Searches for periodicities and randomness in pulse arrival times
We have analysed the long- and short-term time dependence of the pulse arrival times and the pulse detection rates for eight rotating radio transient (RRAT) sources from the Parkes Multibeam Pulsar Survey. We find significant periodicities in the individual pulse arrival times from six RRATs. These...
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| Veröffentlicht in: | Monthly notices of the Royal Astronomical Society 2011-11, Vol.417 (3), p.1871-1880 |
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| creator | Palliyaguru, N. T. McLaughlin, M. A. Keane, E. F. Kramer, M. Lyne, A. G. Lorimer, D. R. Manchester, R. N. Camilo, F. Stairs, I. H. |
| description | We have analysed the long- and short-term time dependence of the pulse arrival times and the pulse detection rates for eight rotating radio transient (RRAT) sources from the Parkes Multibeam Pulsar Survey. We find significant periodicities in the individual pulse arrival times from six RRATs. These periodicities range from ∼30 min to 2100 d, and from one to 16 independent (i.e. non-harmonically related) periodicities are detected for each RRAT. In addition, we find that pulse emission is a random (i.e. Poisson) process on short (hour-long) time-scales but that most of the objects exhibit longer term (months to years) non-random behaviour. We find that PSR J1819−1458 and PSR J1317−5759 emit more doublets (two consecutive pulses) and triplets (three consecutive pulses) than is expected in random pulse distributions. No evidence for such an excess is found for the other RRATs. There are several different models for RRAT emission depending on both extrinsic and intrinsic factors which are consistent with these properties. |
| doi_str_mv | 10.1111/j.1365-2966.2011.19388.x |
| format | Article |
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Searches for periodicities and randomness in pulse arrival times</title><source>Wiley Online Library</source><source>Oxford Open</source><creator>Palliyaguru, N. T. ; McLaughlin, M. A. ; Keane, E. F. ; Kramer, M. ; Lyne, A. G. ; Lorimer, D. R. ; Manchester, R. N. ; Camilo, F. ; Stairs, I. H.</creator><creatorcontrib>Palliyaguru, N. T. ; McLaughlin, M. A. ; Keane, E. F. ; Kramer, M. ; Lyne, A. G. ; Lorimer, D. R. ; Manchester, R. N. ; Camilo, F. ; Stairs, I. H.</creatorcontrib><description>We have analysed the long- and short-term time dependence of the pulse arrival times and the pulse detection rates for eight rotating radio transient (RRAT) sources from the Parkes Multibeam Pulsar Survey. We find significant periodicities in the individual pulse arrival times from six RRATs. These periodicities range from ∼30 min to 2100 d, and from one to 16 independent (i.e. non-harmonically related) periodicities are detected for each RRAT. In addition, we find that pulse emission is a random (i.e. Poisson) process on short (hour-long) time-scales but that most of the objects exhibit longer term (months to years) non-random behaviour. We find that PSR J1819−1458 and PSR J1317−5759 emit more doublets (two consecutive pulses) and triplets (three consecutive pulses) than is expected in random pulse distributions. No evidence for such an excess is found for the other RRATs. There are several different models for RRAT emission depending on both extrinsic and intrinsic factors which are consistent with these properties.</description><identifier>ISSN: 0035-8711</identifier><identifier>EISSN: 1365-2966</identifier><identifier>DOI: 10.1111/j.1365-2966.2011.19388.x</identifier><identifier>CODEN: MNRAA4</identifier><language>eng</language><publisher>Oxford, UK: Blackwell Publishing Ltd</publisher><subject>Astronomy ; Earth, ocean, space ; Exact sciences and technology ; Galaxy: stellar content ; Pulsars ; pulsars: general ; Stars & galaxies ; stars: neutron</subject><ispartof>Monthly notices of the Royal Astronomical Society, 2011-11, Vol.417 (3), p.1871-1880</ispartof><rights>2011 The Authors. Monthly Notices of the Royal Astronomical Society © 2011 RAS 2011</rights><rights>2011 The Authors. 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T.</creatorcontrib><creatorcontrib>McLaughlin, M. A.</creatorcontrib><creatorcontrib>Keane, E. F.</creatorcontrib><creatorcontrib>Kramer, M.</creatorcontrib><creatorcontrib>Lyne, A. G.</creatorcontrib><creatorcontrib>Lorimer, D. R.</creatorcontrib><creatorcontrib>Manchester, R. N.</creatorcontrib><creatorcontrib>Camilo, F.</creatorcontrib><creatorcontrib>Stairs, I. H.</creatorcontrib><title>Radio properties of rotating radio transients - I. Searches for periodicities and randomness in pulse arrival times</title><title>Monthly notices of the Royal Astronomical Society</title><addtitle>Monthly Notices of the Royal Astronomical Society</addtitle><description>We have analysed the long- and short-term time dependence of the pulse arrival times and the pulse detection rates for eight rotating radio transient (RRAT) sources from the Parkes Multibeam Pulsar Survey. We find significant periodicities in the individual pulse arrival times from six RRATs. These periodicities range from ∼30 min to 2100 d, and from one to 16 independent (i.e. non-harmonically related) periodicities are detected for each RRAT. In addition, we find that pulse emission is a random (i.e. Poisson) process on short (hour-long) time-scales but that most of the objects exhibit longer term (months to years) non-random behaviour. We find that PSR J1819−1458 and PSR J1317−5759 emit more doublets (two consecutive pulses) and triplets (three consecutive pulses) than is expected in random pulse distributions. No evidence for such an excess is found for the other RRATs. There are several different models for RRAT emission depending on both extrinsic and intrinsic factors which are consistent with these properties.</description><subject>Astronomy</subject><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>Galaxy: stellar content</subject><subject>Pulsars</subject><subject>pulsars: general</subject><subject>Stars & galaxies</subject><subject>stars: neutron</subject><issn>0035-8711</issn><issn>1365-2966</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNp1kUtPJCEUhYnRxPbxH4iJyyqheG8mMeo4TnwkPmLihtAUOLTdRQ1UO-2_H7rb9MbIBsI537lwLwAQoxqXdTKpMeGsahTndYMwrrEiUtaLLTDaCNtghBBhlRQY74K9nCcIIUoaPgL53rQhwj7F3qUhuAyjhykOZgjdK0wrcUimy8F1Q4YVvKrhgzPJ_ilWHxMsWIhtsGEFm64tUNfGWedyhqGD_XyaHTQphXczhUOYuXwAdrwpt4ef-z54-nnxeParur67vDo7va4sZVRW1nlJiSdSsZY3om2YFZIToQgWRjhr_ZiPkUWt5F4ViXKPGmnlmAnJxtyQfXC0zi2_-zt3edCTOE9dKamlUpw1CvFiOv40mWzN1JfX25B1n8LMpA_dUI4lpar4fqx9_8LUfWx0jPRyDHqil93Wy27r5Rj0agx6oW9u71fHEkDWAXHef4NXX_BCVWsq5MEtNpxJb5oLIph-vr3U6pzT38_opYT8B9mYnLo</recordid><startdate>201111</startdate><enddate>201111</enddate><creator>Palliyaguru, N. 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Searches for periodicities and randomness in pulse arrival times</atitle><jtitle>Monthly notices of the Royal Astronomical Society</jtitle><stitle>Monthly Notices of the Royal Astronomical Society</stitle><date>2011-11</date><risdate>2011</risdate><volume>417</volume><issue>3</issue><spage>1871</spage><epage>1880</epage><pages>1871-1880</pages><issn>0035-8711</issn><eissn>1365-2966</eissn><coden>MNRAA4</coden><abstract>We have analysed the long- and short-term time dependence of the pulse arrival times and the pulse detection rates for eight rotating radio transient (RRAT) sources from the Parkes Multibeam Pulsar Survey. We find significant periodicities in the individual pulse arrival times from six RRATs. These periodicities range from ∼30 min to 2100 d, and from one to 16 independent (i.e. non-harmonically related) periodicities are detected for each RRAT. In addition, we find that pulse emission is a random (i.e. Poisson) process on short (hour-long) time-scales but that most of the objects exhibit longer term (months to years) non-random behaviour. We find that PSR J1819−1458 and PSR J1317−5759 emit more doublets (two consecutive pulses) and triplets (three consecutive pulses) than is expected in random pulse distributions. No evidence for such an excess is found for the other RRATs. There are several different models for RRAT emission depending on both extrinsic and intrinsic factors which are consistent with these properties.</abstract><cop>Oxford, UK</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1111/j.1365-2966.2011.19388.x</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Astronomy Earth, ocean, space Exact sciences and technology Galaxy: stellar content Pulsars pulsars: general Stars & galaxies stars: neutron |
| title | Radio properties of rotating radio transients - I. Searches for periodicities and randomness in pulse arrival times |
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