V. Malofeev, O. Malov, W. Sieber, A. Jessner, S. Tyul'Bashev, B. Klein, R. Wielebinski
{"title":"Pulsar diffractive scintillation at 1.4 and 4.8GHz","authors":"V. Malofeev, O. Malov, W. Sieber, A. Jessner, S. Tyul'Bashev, B. Klein, R. Wielebinski","doi":"10.1080/10556790701614755","DOIUrl":null,"url":null,"abstract":"Abstract The diffractive interstellar scintillation of 11 pulsars at 1410 MHz and of five pulsars at 4800 MHz was analysed to estimate the spectrum of the electron density fluctuations as well as the ACF, CCF and the structure function. We present dynamic spectra for a few pulsars at high frequencies in the strong and weak regime and show that a lensing effect probably exists for pulsar PSR B2020+28 at 1410 MHz. The mean value of the indexes of the power law spectra for an ensemble of pulsars is in good agreement with a Kolmogorov spectrum.","PeriodicalId":52135,"journal":{"name":"Astronomical and Astrophysical Transactions","volume":"123 1","pages":"549-556"},"PeriodicalIF":0.0000,"publicationDate":"2007-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Astronomical and Astrophysical Transactions","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/10556790701614755","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Physics and Astronomy","Score":null,"Total":0}
引用次数: 0
Abstract
Abstract The diffractive interstellar scintillation of 11 pulsars at 1410 MHz and of five pulsars at 4800 MHz was analysed to estimate the spectrum of the electron density fluctuations as well as the ACF, CCF and the structure function. We present dynamic spectra for a few pulsars at high frequencies in the strong and weak regime and show that a lensing effect probably exists for pulsar PSR B2020+28 at 1410 MHz. The mean value of the indexes of the power law spectra for an ensemble of pulsars is in good agreement with a Kolmogorov spectrum.
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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