{"title":"脉冲星射电辐射散射的测量。银河系附近大尺度等离子体湍流的统计均匀性","authors":"A. D. Kuz’min, B. Losovsky","doi":"10.1080/10556790701610282","DOIUrl":null,"url":null,"abstract":"We report the low frequency measurements of the scatter pulse broadening τsc for a large sample of 100 pulsars in a vast Galaxy region of galactic longitudes from 6° to 311° and distances up to 3 kpc. Analysis of τsc dependencies on the frequency, dispersion measure, distance and Galactic longitude have been done. The scatter to frequency dependence can be presented by the power-low relation τsc(ν) ∝ ν−γ with γ=4.1±0.3. Up to a distance of 3 kpc the scatter to dispersion measure dependence can be presented by the power-low relation τsc(DM) ∝ DM2.2±0.1. The turbulence level is nearly identical in various directions and distances of the near Galaxy, testifying to the statistical homogeneity of a large-scale plasma turbulence in this Galaxy region.","PeriodicalId":52135,"journal":{"name":"Astronomical and Astrophysical Transactions","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2007-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"12","resultStr":"{\"title\":\"Measurements of the scattering of pulsars radio emission. Statistical uniformity of large-scale plasma turbulence in the near Galaxy\",\"authors\":\"A. D. Kuz’min, B. Losovsky\",\"doi\":\"10.1080/10556790701610282\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We report the low frequency measurements of the scatter pulse broadening τsc for a large sample of 100 pulsars in a vast Galaxy region of galactic longitudes from 6° to 311° and distances up to 3 kpc. Analysis of τsc dependencies on the frequency, dispersion measure, distance and Galactic longitude have been done. The scatter to frequency dependence can be presented by the power-low relation τsc(ν) ∝ ν−γ with γ=4.1±0.3. Up to a distance of 3 kpc the scatter to dispersion measure dependence can be presented by the power-low relation τsc(DM) ∝ DM2.2±0.1. The turbulence level is nearly identical in various directions and distances of the near Galaxy, testifying to the statistical homogeneity of a large-scale plasma turbulence in this Galaxy region.\",\"PeriodicalId\":52135,\"journal\":{\"name\":\"Astronomical and Astrophysical Transactions\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2007-12-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"12\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Astronomical and Astrophysical Transactions\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1080/10556790701610282\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"Physics and Astronomy\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Astronomical and Astrophysical Transactions","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/10556790701610282","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Physics and Astronomy","Score":null,"Total":0}
Measurements of the scattering of pulsars radio emission. Statistical uniformity of large-scale plasma turbulence in the near Galaxy
We report the low frequency measurements of the scatter pulse broadening τsc for a large sample of 100 pulsars in a vast Galaxy region of galactic longitudes from 6° to 311° and distances up to 3 kpc. Analysis of τsc dependencies on the frequency, dispersion measure, distance and Galactic longitude have been done. The scatter to frequency dependence can be presented by the power-low relation τsc(ν) ∝ ν−γ with γ=4.1±0.3. Up to a distance of 3 kpc the scatter to dispersion measure dependence can be presented by the power-low relation τsc(DM) ∝ DM2.2±0.1. The turbulence level is nearly identical in various directions and distances of the near Galaxy, testifying to the statistical homogeneity of a large-scale plasma turbulence in this Galaxy region.
期刊介绍：
Astronomical and Astrophysical Transactions (AApTr) journal is being published jointly by the Euro-Asian Astronomical Society and Cambridge Scientific Publishers, The journal provides a forum for the rapid publication of material from all modern and classical fields of astronomy and astrophysics, as well as material concerned with astronomical instrumentation and related fundamental sciences. It includes both theoretical and experimental original research papers, short communications, review papers and conference reports.
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