| GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS |
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Two-Component Model for the Interstellar Scattering along the Line of Sight to the Pulsar PSR B0136+57 |
| ZHOU Ai-Zhi1, TAN Jin-Yu1, Ali Esamdin2, WU Xin-Ji3 |
| 1Institute of Astrophysics, Huazhong Normal University, Wuhan 4300792Urumqi Observatory, the National Astronomical Observatories, Chinese Academy of Sciences, Urumqi 8300113Department of Astronomy, Peking University, Beijing 100871 |
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| Cite this article: |
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ZHOU Ai-Zhi, TAN Jin-Yu, Ali Esamdin et al 2009 Chin. Phys. Lett. 26 129701 |
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Abstract A rigorous treatment of the refractive scintillation caused by a two-component interstellar scattering medium and a Kolmogorov form of density spectrum is discussed. It is assumed that the interstellar scattering medium is composed of a thin screen ISM and an extended interstellar medium. We conclude that the refractive scintillation caused by this two-component ISM scattering gives a more satisfactory explanation for the observed flux density variation than the single extended medium model along the line of sight to the pulsar PSR B0136+57.
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| Keywords:
97.60.Gb
98.58.Ay
98.58.-w
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Received: 06 March 2009
Published: 27 November 2009
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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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