Gravitational Radiation Sources for Cryogenic Resonant Bar Detectors

低温谐振棒探测器的重力辐射源

• 批准号: 9503084
• 负责人: Lee Finn
• 金额: $ 20万
• 依托单位: Northwestern University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-05-01 至 1999-03-26
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9503084&HistoricalAwards=false
• 关键词: Gravitational; Radiation; Sources; Cryogenic; Resonant

This CAREER award will initiate a new theoretical research program to study issues connected with the design of the next generation of acoustic gravitational wave detectors designed to operate at high frequency. Data analysis techniques that properly account for detector noise will be adapted to the truncated isocahedral gravitational antenna TIGA design. These techniques will be used to evaluate several astrophysically relevant high-frequency gravitational radiation sources, including but not limited to the final burst of radiation from the coalescence of a binary neutron star or stellar mass black hole system, supernovae explosions, precessing pulsars, and general non axisymmetric pulsars. An educational program is proposed that focuses on communicating to non-science students the nature of scientific inquiry and the manner in which it is conducted. The vehicle for this program is an astronomy course that fulfills a university distribution requirement. Computer laboratories will be constructed that will allow students to, for example, determine the age of a star cluster by examining the distribution of stars within it, or calibrate the distance scale and find the Hubble constant and age of a model universe. In addition, a novel evaluation and study aid - concept maps - will be introduced into the same course. A concept is an object e.g., star, planet, galaxy, black hole or an event e.g., eclipse, nova, sidereal year . New concepts come to be understood in terms of their relationships with concepts previously known. Deeper understanding of concepts already known corresponds to the construction of new relationships between them. A concept map is a graphical representation of the concepts and the relationships among them that a student has come to recognize.

该CAREER奖将启动一个新的理论研究计划，以研究与设计在高频下工作的下一代声学引力波探测器的设计有关的问题。 适当考虑探测器噪声的数据分析技术将适用于截断等六面体引力天线 TIGA设计。 这些技术将被用来评估几个天体物理学相关的高频引力辐射源，包括但不限于从一个双中子星星或恒星质量的黑洞系统，超新星爆炸，旋进双星，和一般的非轴对称双星的合并辐射的最后爆发。 提出了一个教育计划，重点是沟通非科学学生的科学探究的性质和方式，它是进行。 该计划的车辆是满足大学分布要求的天文学课程。 将建造计算机实验室，使学生能够通过检查星团内恒星的分布来确定星星的年龄，或校准距离刻度并找到哈勃常数和模型宇宙的年龄。 此外，一个新的评估和学习辅助工具-概念图-将被引入同一课程。 概念是一个对象，例如，星星、行星、星系、黑洞或事件，例如，日食，新星，恒星年。 新概念是根据它们与先前已知概念的关系来理解的。 对已知概念的更深入理解对应于它们之间新关系的构建。 概念图是学生已经认识到的概念及其之间关系的图形表示。