Study of light scattering by cometary dust

• Project/Area Number: 19740095
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Astronomy
• Research Institution: Tohoku University (2008); Hokkaido University (2007)
• Principal Investigator: YEVGEN Zubko Tohoku University, 大学院・理学研究科, 特別教育研究教員 (10435977)
• Project Period (FY): 2007 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥3,490,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥390,000); Fiscal Year 2008: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2007: ¥1,800,000 (Direct Cost: ¥1,800,000)
• Keywords: 光散乱 / 偏光観測 / 彗星 / 塵粒子 / 氷昇華 / 離散的双極子近似 / 不規則形状粒子 / light scattering / polarimetry / comets / dust particles / ice sublimation / Discrete-dipole approximation / irregular shaped particles / 離散双極子近似

Research Abstract

氷の昇華、小さな構成グレイン上への粒子の破壊、吸収、複素屈折率、そして光の波長程度のサイズを持つ不規則形状粒子による光散乱における充填密度の影響に関して研究を行なった。ダストを形成している彗星ジェットとcircumnuclear haloesの物理パラメーターを明らかにする事を目的に得られた結果を彗星へ適用した。

Research Products

• [Journal Article] Comet 9P/Tempel 1 : Interpretation with the Deep Impact Results (2008)
  • Author(s): Satoru Yamamoto, Hiroshi Kimura, Evgenij Zubko, Hiroshi Kobayashi, Koji Wada, Masateru Ishiguro, and Takafumi Matsui
  • Journal Title: Astrophysical Journal Letters 673
• [Journal Article] Differences in polarimetric properties of cometary jets and circumnucleus halos (2008)
  • Author(s): Evgenij Zubko, Hiroshi Kimura, Tetsuo Yamamoto, Hiroshi Kobayashi
  • Journal Title: Proceedings of 10-th Conference on electromagnetic and Light Scattering by Nonspherical particles Pages: 257-260
• [Journal Article] Light scattering in a finite multi-particle system (2008)
  • Author(s): ZUBKO Evgenij, SHKURATOV Yuriy, MISHCHEKKO Michael, VIDEEN Gorden
  • Journal Title: Journal of Quantitative Spectroscapy and Radiative Transfer 109 Pages: 2195-2206
• [Journal Article] Light scattering by agglomerated debris_particles composed of highly absorbing material (2008)
  • Author(s): Zubko, E. ; Kimura, H. ; Shkuratov, Y. ; Muinonen, K. ; Yamamoto, T. ; Videen, G.
  • Journal Title: 11th Glectromagnetic and Light Scattering Conference Extended Abstracts Pages: 213-216
• [Journal Article] Applicability of discrete-dipole approximation to conductive particles (2008)
  • Author(s): Zubko, E. ; Petrov, D. ; Shkuratov, Y. ; Okamoto, H. ; Muinonen, K. ; Kimura, H. ; Yamamoto, T. ; Videen, G.
  • Journal Title: 11th Electromagnetic and Light Scattering Conference Extended Abstracts Pages: 117-120
• [Journal Article] Light scattering in a finite multi-particle system (2008)
  • Author(s): E. Zubko
  • Journal Title: Journal of Quantitative Spectroscopy and Radiative Transfer 109 Pages: 2195-2206
  • Peer Reviewed
• [Journal Article] Light scattering by agglomerated debris particles composed of highly a bsorbing material (2008)
  • Author(s): E. Zubko
  • Journal Title: Proceedings of 11-th Conference on Electromagnetic and Light Scattering by Nonspherical particles Pages: 213-216
  • Peer Reviewed
• [Journal Article] Applicability of discrete-dipole approximation to conductive particles (2008)
  • Author(s): E. Zubko
  • Journal Title: Proceedings of 11-th Conference on Electromagnetic and Light Scattering by Nonspherical particles Pages: 117-120
  • Peer Reviewed
• [Journal Article] Comet 9P/Tempel 1: interpretation with the Deep Impact results (2008)
  • Author(s): S. Yamamoto
  • Journal Title: Astrophysical Journal Letters 673
• [Journal Article] Differences in polarimetric properties of cometary jets and circumnucleus halos (2007)
  • Author(s): E. Zubko
  • Journal Title: Proceedings of 10-th Conference on Electromagnetic and Light Scattering by Nonspherical particles Pages: 257-260
• [Presentation] Linear polarization of fluffy particles (2008)
  • Author(s): E. Zubko
  • Organizer: Annul meeting of Asia Oceania Geoscience Society
  • Place of Presentation: Busan, Republic Korea
  • Year and Date: 2008-06-17
• [Presentation] Linear polarization of fluffy particles (2008)
  • Author(s): E. Zubko
  • Organizer: Annual meeting of Asia Oceania Geoscience Society
  • Place of Presentation: Busan, Republic Korea
  • Year and Date: 2008-06-17
• [Presentation] Differences in polarimetric properties of cometary jets and circumnucleus halos (2007)
  • Author(s): E. Zubko
  • Organizer: Proceedings of 10-th Conference on Electromagnetic and Light Scattering by Nonspherical particles
  • Place of Presentation: Bodrum, Turkey
  • Year and Date: 2007-06-17
• [Presentation] Differences in polarimetric properties of cometary jets and circumnucleus halos (2007)
  • Author(s): E. Zubko
  • Organizer: 10-th Conference on Electromagnetic and Light Scattering by Nonspherical particles
  • Place of Presentation: ゛Hapimag Resort Sea Garden゛ Bodrum, Turkey
  • Year and Date: 2007-06-17
• [Remarks]
  • URL: http://caos-a.geophys.tohoku.ac.jp/