Cosmology with Millimeter-Wave Intensity Mapping: Developing A New Probe of Large-Scale Structure

Kirit Karkare被授予美国国家科学基金会天文学和天体物理学博士后奖学金，在芝加哥大学进行研究和教育项目。他将在开发仪器和进行观测以研究遥远宇宙的大尺度结构方面发挥主导作用。这个项目的结果将促进我们对早期宇宙物理学的理解。在进行这项研究的同时，他还将开发一个公共推广项目，将芝加哥服务不足社区的艺术家与芝加哥大学的科学家联系起来。该项目将推进仪器和必要的分析，以发展线强度映射（IM）作为大尺度结构的探测。它将在SuperSpec仪器上测试毫米波光谱仪和动力电感探测器的性能，并分析单电离碳和一氧化碳的IM观测结果。它还将开发一个软件管道来评估扫描和降噪，并将测试一种新的前景清理算法来隔离宇宙信号。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

Kirit Karkare is awarded an NSF Astronomy and Astrophysics Postdoctoral Fellowship to conduct a program of research and education at the University of Chicago. He will play a lead role in developing instrumentation and conducting observations to study the large-scale structure of the distant universe. Results from this project will advance our understanding of the physics of the early universe. Along with this research, he will develop a program of public outreach that connects artists from underserved Chicago communities to scientists at the University of Chicago.This project will advance the instrumentation and analysis necessary to develop line intensity mapping (IM) as a probe of large-scale structure. It will test the performance of the millimeter-wave spectrometer and kinetic inductance detectors on the SuperSpec instrument and analyze IM observations of singly ionized carbon and carbon monoxide. It will also develop a software pipeline to assess scan and noise reduction, and it will test a novel foreground cleaning algorithm to isolate the cosmological signal.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.