Simultaneous X-ray and radio observations of rotating radio transient j1819-1458

J. J. Miller, M. A. McLaughlin, N. Rea, K. Lazaridis, E. F. Keane, M. Kramer, A. Lyne

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    We present the results of simultaneous radio and X-ray observations of PSR J1819-1458. Our 94 ks XMM-Newton observation of the high magnetic field (∼5 × 1013 G) pulsar reveals a blackbody spectrum (kT ∼ 130 eV) with a broad absorption feature, possibly composed of two lines at ∼1.0 and ∼1.3 keV. We performed a correlation analysis of the X-ray photons with radio pulses detected in 16.2 hr of simultaneous observations at 1-2 GHz with the Green Bank, Effelsberg, and Parkes telescopes, respectively. Both the detected X-ray photons and radio pulses appear to be randomly distributed in time. We find tentative evidence for a correlation between the detected radio pulses and X-ray photons on timescales of less than 10 pulsar spin periods, with the probability of this occurring by chance being 0.46%. This suggests that the physical process producing the radio pulses may also heat the polar-cap. © 2013. The American Astronomical Society. All rights reserved.
    Original languageEnglish
    Article number104
    JournalAstrophysical Journal
    Issue number2
    Publication statusPublished - 20 Oct 2013


    • pulsars: individual (J1819-1458)
    • radio continuum: stars
    • stars: neutron
    • X-rays: stars


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