Study of Dynamical Phenomena in the Solar Chromosphere using Two-Dimensional Spectro-Polarimetric Observations
Project/Area Number |
19340049
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Astronomy
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Research Institution | National Astronomical Observatory of Japan |
Principal Investigator |
SUEMATSU Yoshinori National Astronomical Observatory of Japan, 太陽天体プラズマ研究部, 准教授 (50171111)
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Co-Investigator(Kenkyū-buntansha) |
ICHMOTO Kiyoshi 京都大学, 大学院・理学研究科, 教授 (70193456)
MIYASHITA Masakuni 国立天文台, 太陽天体プラズマ研究部, 研究技師 (50209904)
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Project Period (FY) |
2007 – 2009
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Project Status |
Completed (Fiscal Year 2009)
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Budget Amount *help |
¥15,860,000 (Direct Cost: ¥12,200,000、Indirect Cost: ¥3,660,000)
Fiscal Year 2009: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2008: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2007: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
|
Keywords | 太陽物理学 / 彩層 / 2次元分光 / 偏光 / 磁気流体現象 / 天文 |
Research Abstract |
We developed a two-dimensional spectro-polarimetoric observation method to detect unsolved chromospheric jets and heating phenomena effectively and to derive their physical parameters, particularly the magnetic and velocity fields, as accurately as possible. Using observational data coordinated with other ground-based instruments and the solar observing satellite Hinode, we newly revealed that the jets have a large line-of-sight velocity and often twin structure and uni-polar magnetic elements at their feet show vortex and encountering motion. Our results suggest a new type of magnetic reconnection mechanism in the chromospheres and its contribution to the chromospheric heating.
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Report
(4 results)
Research Products
(49 results)
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[Journal Article] Hinode Observation of the Magnetic Fields in a Sunspot Light Bridge Accompanied by Long-Lasting Chromospheric Plasma Ejections2009
Author(s)
Shimizu, T., Katsukawa, Y., Kubo, M., Lites, B.W., Ichimoto, K., Suematsu, Y., et. al.
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Journal Title
Related Report
Peer Reviewed
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[Journal Article] Hinode Observation of the Magnetic Fields in a Sunspot Light Bridge Accompanied by Long-Lasting Chromospheric Plasma Ejections2009
Author(s)
Shimizu, T., Katsukawa, Y., Kubo, M., Lites, B.W, Ichimoto, K., Suematsu, Y., Tsuneta, S., Nagata, S., Shine, R.A., Tarbell, T.D.
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Journal Title
Related Report
Peer Reviewed
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[Journal Article] Prominence Formation Associated with an Emerging Helical Flux Rope2009
Author(s)
Okamoto, T.J., Tsuneta, S., Lites, B.W., Kubo, M., Yokoyama, T., Berger, T.E., Ichimoto, K., Katsukawa, Y., Nagata, S., Shibata, K., Shimizu, T., Shine, R.A., Suematsu, Y., Tarbell, T.D., Title, A.M.
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Journal Title
Astrophys.J. 697
Pages: 913-922
Related Report
Peer Reviewed
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[Journal Article] A New View of Fine Scale Dynamics and Magnetism of Sunspots Revealed by Hinode/SOT2009
Author(s)
Ichimoto, K., Suematsu, Y., Katsukawa, Y., Tsuneta, S.Shimojo, M., Shimizu, T., Shine, R.A., Tarbell, T.D., Berger, T., Title, A.M., Lites, B.W, Kubo, M., Yokoyama, T., Nagata, S.
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Journal Title
Solar Polarization 5, ASP Conf.Ser. 405
Pages: 167-172
Related Report
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[Journal Article] Has Hinode Revealed the Missing Turbulent Flux of the Quiet Sun?2009
Author(s)
Lites, B.W, Kubo, M., Socas-Navarro, H., Berger, T., Frank, Z., Shine, R., Tarbell, T., Title, A.M., Ichimoto, K., Katsukawa, Y., Tsuneta, S., Suematsu, Y., Shimizu, T., Nagata, S.
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Journal Title
Solar Polarization 5, ASP Conf.Ser. 405
Pages: 173-181
Related Report
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[Journal Article] Estimation of Spicule Magnetic Field Using Observed MHD Waves by the Hinode SOT2008
Author(s)
Kim, Y.-H., Bong, S.-C., Park, Y.-D., Cho, K.-S., Moon, Y.-J., Suematsu, Y.
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Journal Title
J. of Korean Astro. Soc. 41
Pages: 173-180
Related Report
Peer Reviewed
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[Journal Article] Disintegration of Magnetic Flux in Decaying Sunspots as Observed with the Hinode SOT2008
Author(s)
Kubo, M., Lites, B. W., Ichimoto, K., Shimizu, T., Suematsu, Y., 他
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Journal Title
Astrophys. J. 681
Pages: 1677-1687
Related Report
Peer Reviewed
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[Journal Article] Estimation of Spicule Magnetic Field Using Observed MHD Waves by the Hinode SOT2008
Author(s)
Kim, Y. -H., Bong, S. -C., Park, Y. -D., Cho, K. -S., Moon, Y. -J., Suematsu, Y.
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Journal Title
Journal of Korean As tronomical Society 41
Pages: 173-180
Related Report
Peer Reviewed
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