Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    Rocking the lighthouse: Circumpulsar asteroids and radio intermittency

    Access Status
    Open access via publisher
    Authors
    Cordes, J.
    Shannon, Ryan
    Date
    2008
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Cordes, J. and Shannon, R. 2008. Rocking the lighthouse: Circumpulsar asteroids and radio intermittency. Astrophysical Journal. 682 (2): pp. 1152-1165.
    Source Title
    Astrophysical Journal
    DOI
    10.1086/589425
    ISSN
    0004-637X
    School
    Curtin Institute of Radio Astronomy (Physics)
    URI
    http://hdl.handle.net/20.500.11937/3993
    Collection
    • Curtin Research Publications
    Abstract

    Neutral, circumpulsar debris that enters the magnetospheres of neutron stars can disrupt current flows and electromagnetic radiation and thereby account for some of the intermittency seen in radio pulsars. This paper considers asteroids that form from supernova fallback material and how they migrate into the pulsar light cylinder before evaporating, ionizing, and perturbing particle acceleration regions. Such intrusion is expected primarily for pulsars with long spin periods and relatively cool surfaces. We show that debris disks undetectable either directly or through reflex of the neutron star can provide sufficient material over the radio-emitting lifetime of a pulsar to account for nulling and burst phenomena that occur on timescales of seconds to months. The quasi-periodic bursts in B1931 +24 may be driven by a large orbiting object that perturbs a debris disk episodically. © 2008. The American Astronomical Society. All rights reserved.

    Related items

    Showing items related by title, author, creator and subject.

    • Searching for pulsars using image pattern recognition
      Zhu, W.; Berndsen, A.; Madsen, E.; Tan, M.; Stairs, I.; Brazier, A.; Lazarus, P.; Lynch, R.; Scholz, P.; Stovall, K.; Ransom, S.; Banaszak, S.; Biwer, C.; Cohen, S.; Dartez, L.; Flanigan, J.; Lunsford, G.; Martinez, J.; Mata, A.; Rohr, M.; Walker, A.; Allen, B.; Bhat, Ramesh; Bogdanova, S.; Camilo, F.; Chatterjee, S.; Cordes, J.; Crawford, F.; Deneva, J.; Desvignes, G.; Ferdman, R.; Freire, P.; Hessels, J.; Jenet, F.; Kaplan, D.; Kaspi, V.; Knispel, B.; Lee, K.; van Leeuwen, J.; Lyne, A.; McLaughlin, M.; Siemens, X.; Spitler, L.; Venkataraman, A. (2014)
      In the modern era of big data, many fields of astronomy are generating huge volumes of data, the analysis of which can sometimes be the limiting factor in research. Fortunately, computer scientists have developed powerful ...
    • The First Fermi Large Area Telescope Catalog of Gamma-ray Pulsars
      Abdo, A.; Ackermann, M.; Ajello, M.; Atwood, W.; Axelsson, M.; Baldini, L.; Ballet, J.; Barbiellini, G.; Baring, M.; Bastieri, D.; Baughman, B.; Bechtol, K.; Bellazzini, R.; Berenji, B.; Blandford, R.; Bloom, E.; Bonamente, E.; Borgland, A.; Bregeon, J.; Brez, A.; Brigida, M.; Bruel, P.; Burnett, T.; Buson, S.; Caliandro, G.; Cameron, R.; Camilo, F.; Caraveo, P.; Casandjian, J.; Cecchi, C.; Celik, O.; Charles, E.; Chekhtman, A.; Cheung, C.; Chiang, J.; Ciprini, S.; Claus, R.; Cognard, I.; Cohen-Tanugi, J.; Cominsky, L.; Conrad, J.; Corbet, R.; Cutini, S.; den Hartog, P.; Dermer, C.; de Angelis, A.; De Luca, A.; de Palma, F.; Digel, S.; Dormody, M.; Do Couto e Silva, E.; Drell, P.; Dubois, R.; Dumora, D.; Espinoza, C.; Farnier, C.; Favuzzi, C.; Fegan, S.; Ferrara, E.; Focke, W.; Fortin, P.; Frailis, M.; Freire, P.; Fukazawa, Y.; Funk, S.; Fusco, P.; Gargano, F.; Gasparrini, D.; Gehrels, N.; Germani, S.; Giavitto, G.; Giebels, B.; Giglietto, N.; Giommi, P.; Giordano, F.; Glanzman, T.; Godfrey, G.; Gotthelf, E.; Grenier, I.; Grondin, M.; Grove, J.; Guillemot, L.; Guiriec, S.; Gwon, C.; Hanabata, Y.; Harding, A.; Hayashida, M.; Hays, E.; Hughes, R.; Jackson, M.; Johannesson, G.; Johnson, A.; Johnson, R.; Johnson, T.; Johnson, W.; johnston, S.; Kamae, T.; Kanbach, G.; Kaspi, V.; Katagiri, H.; Kataoka, J.; Kawai, N.; Kerr, M.; Knödlseder, J.; Kocian, M.; Kramer, M.; Kuss, M.; Lande, J.; Latronico, L.; Lemoine-Goumard, M.; Livingstone, M.; Longo, F.; Loparco, F.; Lott, B.; Lovellette, M.; Lubrano, P.; Lyne, A.; Madejski, G.; Makeev, A.; Manchester, R.; Marelli, M.; Mazziotta, M.; McConville, W.; McEnery, J.; McGlynn, S.; Meurer, C.; Michelson, P.; Mineo, T.; Mitthumsiri, W.; Mizuno, T.; Moiseev, A.; Monte, C.; Monzani, M.; Morselli, A.; Moskalenko, I.; Murgia, S.; Nakamori, T.; Nolan, P.; Norris, J.; Noutsos, A.; Nuss, E.; Ohsugi, T.; Omodei, N.; Orlando, E.; Ormes, J.; Ozaki, M.; Paneque, D.; Panetta, J.; Parent, D.; Pelassa, V.; Pepe, M.; Pesce-Rollins, M.; Piron, F.; Porter, T.; Raino, S.; Rando, R.; Ransom, S.; Ray, P.; Razzano, M.; Rea, N.; Reimer, A.; Reimer, O.; Reposeur, T.; Ritz, S.; Rodriguez, A.; Romani, R.; Roth, M.; Ryde, F.; Sadrozinski, H.; Sanchez, D.; Sander, A.; Saz Parkinson, P.; Scargle, J.; Schalk, T.; Sellerholm, A.; Sgro, C.; Siskind, E.; Smith, D.; Smith, P.; Spandre, G.; Spinelli, P.; Stappers, B.; Starck, J.; Striani, E.; Strickman, M.; Strong, A.; Suson, D.; Tajima, H.; Takahashi, H.; Takahashi, T.; Tanaka, T.; Thayer, J.; Thayer, J.; Theureau, G.; Thompson, D.; Thorsett, S.; Tibaldo, L.; Tibolla, Omar; Torres, D.; Tosti, G.; Tramacere, A.; Uchiyama, Y.; Usher, T.; Van Etten, A.; Vasileiou, V.; Venter, C.; Vilchez, N.; Vitale, V.; Waite, A.; Wang, P.; Wang, N.; Watters, K.; Weltevrede, P.; Winer, B.; Wood, K.; Ylinen, T.; Ziegler, M. (2010)
      The dramatic increase in the number of known gamma-ray pulsars since the launch of the Fermi Gamma-ray Space Telescope (formerly GLAST) offers the first opportunity to study a sizable population of these high-energy ...
    • MeerTime - the MeerKAT Key science program on pulsar timing
      Bailes, M.; Barr, E.; Bhat, Ramesh; Brink, J.; Buchner, S.; Burgay, M.; Camilo, F.; Champion, D.; Hessels, J.; Jansseng, G.; Jameson, A.; Johnston, S.; Karastergiou, A.; Karuppusamy, R.; Kaspi, V.; Keith, M.; Kramer, M.; McLaughlin, M.; Moodley, K.; Oslowski, S.; Possenti, A.; Ransom, S.; Rasio, F.; Sievers, J.; Serylak, M.; Stappers, B.; Stairs, I.; Theureau, G.; van Straten, W.; Weltevrede, P.; Wex, N. (2016)
      © Copyright owned by the author(s). The MeerKAT telescope represents an outstanding opportunity for radio pulsar timing science with its unique combination of a large collecting area and aperture efficiency (effective ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.