Now showing items 1-4 of 4

  • A search for optical bursts from the rotating radio transient j1819−1458 with ultracam - ii. simultaneous ultracam-lovell telescope observations 

    Dhillon, V. S.; Keane, E. F.; Marsh, T. R.; Stappers, B. W.; Copperwheat, C. M.; Hickman, R. D. G.; Jordan, C. A.; Kerry, P.; Kramer, M.; Littlefair, S. P.; Lyne, A. G.; Mignani, R. P.; Shearer, A. (Oxford University Press (OUP), 2011-05-18)
    The rotating radio transient (RRAT) J1819-1458 exhibits similar to 3ms bursts in the radio every similar to 3 min, implying that it is visible for only similar to 1 s per day. Assuming that the optical light behaves in a ...
  • Confirmation of the electron cyclotron maser instability as the dominant source of radio emission from very low mass stars and brown dwarfs 

    Hallinan, G.; Antonova, A.; Doyle, J. G.; Bourke, S.; Lane, C.; Golden, A. (IOP Publishing, 2008-09-01)
    We report on radio observations of the M8.5 dwarf LSR J1835+3259 and the L3.5 dwarf 2MASS J00361617+ 1821104, which provide the strongest evidence to date that the electron cyclotron maser instability is the dominant ...
  • Modelling the radio pulses of an ultracool dwarf 

    Yu, S.; Hallinan, G.; Doyle, J. G.; MacKinnon, A. L.; Antonova, A.; Kuznetsov, A.; Golden, A.; Zhang, Z. H. (EDP Sciences, 2010-11-30)
    Context. Recently, unanticipated magnetic activity in ultracool dwarfs (UCDs, spectral classes later than M7) has emerged from a number of radio observations. The highly (up to 100%) circularly polarized nature and high ...
  • Volume-limited radio survey of ultracool dwarfs 

    Antonova, A.; Hallinan, G.; Doyle, J. G.; Yu, S.; Kuznetsov, A.; Metodieva, Y.; Golden, A.; Cruz, K. L. (EDP Sciences, 2013-01-01)
    Aims. We aim to increase the sample of ultracool dwarfs studied in the radio domain to allow a more statistically significant understanding of the physical conditions associated with these magnetically active objects. Methods. ...