NSF-CGP Fellowship: Studies of the Solar Corona Using Simultaneous X-ray and Radio Observations

NSF-CGP 奖学金：利用同步 X 射线和射电观测研究日冕

• 批准号: 9722489
• 负责人: Mukul Kundu
• 金额: $ 1.58万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-07-01 至 1998-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9722489&HistoricalAwards=false
• 关键词: NSF; CGP; Fellowship; Studies; Solar

9722489 Kundu This award provides funds to support a three-month research visit by Dr. Mukul R. Kundu, Department of Astronomy, University of Maryland at College Park, for collaboration with Dr. Takashi Sakurai, Narikura Solar Observatory, National Astronomical Observatory, Mitaka, Japan. Their research is concerned with studies of the sun's corona and solar flares using simultaneously obtained X-ray and radio data from the Japanese Space mission Yohkoh and ground based radio telescopes, especially, the Nobeyama Radioheliograph in Japan. Three specific projects included in this research, covering a broad range of coronal phenomena are (1) a study of radio emission associated with coronal X-ray jets discovered by SXT (soft-X-ray brightenings which originate in the low corona and then propagate through the corona along magnetic loops), using both low-frequency and highfrequency radio data; and (2) a study of the evolution of active regions in terms of flare productivity; and (3) a survey of the Xray emission above sunspot umbrae, in order to determine the nature of the corona directly above sunspots; this will be combined with radio data on the magnetic fields above the same spots. Dr. Kundu has made pioneering contributions to the knowledge of the sun's corona using combined radio and X-ray imaging data. Dr.Sakurai will bring his theoretical expertise to the problem of studying solar active regions and flares from the point of view of magnetic energy storage and trigger mechanisms. Their complementary expertise is expected be an asset to their collaborative studies. The project will provide to the U.S. scientist access to unique resources, not available elsewhere in the world, for study of the sun's coronal activities. This project is supported under the Science Fellowship Program between the National Science Foundation and the Japan Foundation Center for Global Partnership. ***

9722489 Kundu该奖项提供了资金，以支持马里兰州大学公园的天文学系Mukul R. Kundu博士与日本国家天文天文台的Narikura Solar天文台的Takashi Sakurai博士合作。 他们的研究涉及使用日本太空任务Yohkoh和基于地面的射电望远镜的X射线和无线电数据，尤其是日本的Nobeyama Radioheliograph。这项研究中包括的三个特定项目涵盖了广泛的冠状现象（1）（1）对与SXT（SXT（Soft-X射线亮丽）一起发现的冠状X射线喷气机相关的无线电发射研究，这些喷气机（Soft-X射线亮丽亮度源于低电量，然后沿着磁力循环通过电磁圈传播），同时使用低频率和高频率无线电无线电数据； （2）研究活跃区域在耀斑生产力方面的进化； （3）对X射线的调查，以确定直接在黑子上方的电晕的性质；这将与相同斑点上方的磁场上的无线电数据结合使用。 Kundu博士使用联合无线电和X射线成像数据为对太阳电晕的知识做出了开创性的贡献。 Sakurai博士将他的理论专业知识从磁性能量存储和触发机制的角度研究太阳活动区域和耀斑的问题。 他们的补充专业知识预计是他们协作研究的资产。 该项目将为美国科学家提供独特的资源（在世界其他地方都无法使用的独特资源），以研究太阳的冠冕活动。 该项目得到了国家科学基金会和日本全球合作伙伴基金会中心之间的科学奖学金计划的支持。 ***