Qian Shanjie1; Zhang Xizhen1; A Kraus2
Source Publicationchinesejournalofastronomyandastrophysics
AbstractIntraday polarization angle swings of similar to 180 degrees observed in two sources (QSO 0917+624 and QSO 1150+812) are discussed in the framework of refractive interstellar scintillation by a continuous interstellar medium. Model-fits to the I-, Q- and U- light curves were made for both sources. It is shown that for the case of 0917+624 both the intraday intensity variations and the polarization angle swing of similar to 180 degrees could be explained consistently in terms of a four-component model, which comprises one steady and two scintillating polarized components and one further non-polarized scintillating component. The polarization angle swing of similar to 180 degrees observed in 1150+812, which occurred when the polarized flux density was almost constant, could not be explained in terms of refractive scintillation by a continuous medium and might be due to other mechanisms (e.g., scintillation by interstellar clouds).
Document Type期刊论文
2.Max-Planck-Institut fur Radioastronomie
First Author AffilicationNational Astronomical Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Qian Shanjie,Zhang Xizhen,A Kraus. interstellarrefractivescintillationandintradaypolarizationangleswings[J]. chinesejournalofastronomyandastrophysics,2005,5(1):27.
APA Qian Shanjie,Zhang Xizhen,&A Kraus.(2005).interstellarrefractivescintillationandintradaypolarizationangleswings.chinesejournalofastronomyandastrophysics,5(1),27.
MLA Qian Shanjie,et al."interstellarrefractivescintillationandintradaypolarizationangleswings".chinesejournalofastronomyandastrophysics 5.1(2005):27.
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