Measurement and Analysis of Kodaikanal Solar Images, Award in U.S. and Indian Currencies

科代卡纳尔太阳图像的测量和分析，美国和印度货币奖

• 批准号: 9003847
• 负责人: Robert Howard
• 金额: $ 4.69万
• 依托单位: Association of Universities for Research in Astronomy, Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-04-01 至 1995-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9003847&HistoricalAwards=false
• 关键词: Measurement; Analysis; Kodaikanal; Solar; Images

Description: Under this project, scientists from the U.S. and from India will work to enlarge the data base on the motion of sunspots. The source of the new data is the Indian white-light solar plates began in 1905 in the Kodaikanal Observatory, which is of excellent quality. The combination of the Kodaikanal and Mount Wilson data could make the finest sunspot data set in existence. It will provide many times the number of sunspots now available for statistical studies of rotation and latitude drift and spot areas. This will increase the precision of the averaged results for the cycle-related rotation rate changes found in the data set. It will also increase the confidence in small-amplitude effects which is low given the the limits of the U.S. data set, as well as increase the potential for detecting low-amplitude effects. These measured drifts have an important bearing on the large-scale dynamics of the solar convection zone and is believed to be responsible for the 11-year activity cycle. Scope: The U.S. P.I. Dr. Robert Howard, of the National Solar Observatory (NSO) in Tucson, AZ, and the Indian P.I. Dr. K.R. Sivaraman, of the Indian Institute of Astrophysics, (IIA) in Bangalore, India have collaborated in earlier studies under the Mount Wilson Program funded by NSF/AST. This action extends and formalizes the international collaboration by providing funds to the NSO for the per diem of the Indian scientists, and providing IIA with funds in Indian currency for travel to the U.S. and for computer operation for digitization of data. Funding: This project is being funded under two grants: 1. To The Association of Universities for Research in Astronomy $10,500 plus $36,555 in Indian Currency 2. To The Indian Institute of Astrophysics $49,600 in Indian Currency.

描述：在这个项目下，来自美国的科学家。 印度将努力扩大数据库， 太阳黑子的运动 新数据的来源是印度 白光太阳能板始于1905年的科代卡纳尔 天文台，这是优秀的质量。 相结合 科代卡纳尔和威尔逊山的数据可以使最好的 太阳黑子数据集存在。 它会提供很多次 目前可用于统计研究的太阳黑子数量 旋转、纬度漂移和光斑面积的变化。 这将 提高平均结果的精度， 在数据集中发现的与周期相关的旋转速率变化。 这也将增加小振幅的信心 考虑到美国数据的局限性， 设置，以及增加检测的可能性 低振幅效应。 这些测量的漂移具有 对太阳大尺度动力学的重要影响 对流区，并认为是负责 11-年活动周期。 范围：美国P.I.罗伯特霍华德博士，国家 太阳天文台（NSO）在图森，亚利桑那州，和印度P.I. K.R.博士印度天体物理研究所的西瓦拉曼说， (IIA)在班加罗尔，印度早些时候曾与 由NSF/AST资助的威尔逊山计划下的研究。 这一行动扩大并正式确定了国际 通过向国家统计局提供每日津贴资金进行合作， 印度科学家，并为IIA提供资金， 印度货币用于前往美国和购买计算机 数据数字化操作。 资助：该项目由两项赠款资助： 1. 致研究型大学协会 在天文学$10，500加上$36，555在印度 货币 2. 印度天体物理研究所$49，600 印度货币。