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Refractive Interstellar Scintillation for Flux Density Variations of Two Pulsars |
| ZHOU Ai-Zhi1,3;WU Xin-Ji1,2,3;A. Esamdin1,2,3 |
| 1Department of Astronomy, Peking University, Beijing 100871
2National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012
3CAS-PKU Joint Beijing Astrophysics Center, Beijing 100871 |
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| Cite this article: |
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ZHOU Ai-Zhi, WU Xin-Ji, A. Esamdin 2003 Chin. Phys. Lett. 20 1405-1408 |
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Abstract The flux density structure functions of PSRs B0525+21 and B2111+46 are calculated with the refractive interstellar scintillation (RISS) theory. The theoretical curves are in good agreement with observations [Astrophys. J. 539 (2000) 300] (hereafter S2000). The spectra of the electron density fluctuations both are of Kolmogorov spectra. We suggest that the flux density variations observed for these two pulsars are attributed to refractive interstellar scintillation, not to intrinsic variability.
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| Keywords:
97.60.Gb
98.58.Ay
98.58.-w
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Published: 01 August 2003
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| PACS: |
97.60.Gb
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(Pulsars)
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98.58.Ay
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(Physical properties (abundances, electron density, magnetic fields, scintillation, scattering, kinematics, dynamics, turbulence, etc.))
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98.58.-w
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(Interstellar medium (ISM) and nebulae in external galaxies)
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