期刊
ASTROPHYSICAL JOURNAL
卷 562, 期 2, 页码 L157-L161出版社
IOP PUBLISHING LTD
DOI: 10.1086/338324
关键词
ISM : structure; pulsars : general; scattering
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 +/- 0.13, i.e., significantly less than that expected from standard theories. Such possible discrepancies have been predicted very recently by Cordes and Lazio.
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