Giant pulses in Millisecond Pulsars

2); (2) Jodrell Bank Observatory; (3) University of British Columbia; A. G. Lyne (2); B. C. Joshi (1; Canada); I. H. Stairs (3) ((1) National Center for Radio Astrophysics; India; Macclesfield; M. Kramer (2)

arxiv: astro-ph/0310285 · v1 · submitted 2003-10-10 · 🌌 astro-ph

Giant pulses in Millisecond Pulsars

B. C. Joshi (1 , 2) , M. Kramer (2) , A. G. Lyne (2) , M. Mclaughlin (2) , I. H. Stairs (3) ((1) National Center for Radio Astrophysics , Pune , India

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(2) Jodrell Bank Observatory University of Manchester Macclesfield UK (3) University of British Columbia Vancouver Canada)

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keywords pulsesgiantpulsarsintensityamplitudeaverageb1957been

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Giant pulses (GPs), occasional individual pulses with an intensity 100 times the average intensity, have been detected in four pulsars todate. Their origin is not well understood, but studies suggest a connection between the strength of magnetic field at the light cylinder B_lc and the existence of GPs. Here, we report on detection of significant Large Amplitude Pulses (LAPs) in two more pulsars with high values of B_lc, PSRs J0218+4232 and B1957+20, observed using Giant Meterwave Radio Telescope (GMRT).

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