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Anomalous scattering of highly dispersed pulsars

O. Loehmer·M. Kramer·D. Mitra·D. R. Lorimer·A. G. Lyne
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Abstract

We report multifrequency measurements of scatter broadening times for nine highly dispersed pulsars over a wide frequency range (0.6 -- 4.9 GHz). We find the scatter broadening times to be larger than expected and to scale with frequency with an average power-law index of $3.44\pm 0.13$, i.e. significantly less than that expected from standard theories. Such possible discrepancies have been predicted very recently by Cordes & Lazio.

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O. Loehmer, M. Kramer, D. Mitra, D. R. Lorimer, A. G. Lyne. 2001-11-08. Anomalous scattering of highly dispersed pulsars. https://doi.org/10.1086/338324

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