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arxiv: astro-ph/0701223 · v1 · submitted 2007-01-09 · 🌌 astro-ph

Turn-over in pulsar spectra above 1 GHz

classification 🌌 astro-ph
keywords pulsarturn-overspectraevidencefrequencyaboveappearsdepend
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We present the first direct evidence for turn-over in pulsar radio spectra at high frequencies. Two pulsars are now shown to have a turn-over frequency > 1GHz. We also find some evidence that the peak frequency of turn-over in pulsar spectra appears to depend on dispersion measure and pulsar age.

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