Japan JSPS Program: A Search for the Cosmic Infrared Background with the Near Infrared Spectrometer

Lim 9703818 该奖项支持Mark Lim博士在日本神奈川空间和宇航研究所获得为期24个月的日本科学促进协会博士后研究金。 林博士将与天体物理学系银河系演化教授松本博士一起进行一项名为“用近红外光谱仪搜索宇宙红外背景”的研究项目。" 宇宙红外背景（CIB）是由未被分辨的原始星系发出的光组成的弥散空间背景。 目前解决CIB的理论工作描述了从第一个星系发出的星光的图片，形成了近红外（NIR）成分，最亮的波长为几微米。 其中一些星光可能被尘埃吸收和重新发射，并被视为远红外成分。 拟议的研究包括使用安装在空间红外望远镜卫星上的近红外光谱仪对近红外数据进行全面分析。 近红外光谱仪是一种波长覆盖范围为1.2 ~ 4.2 μ m，分辨率为0.12 μ m的光栅光谱仪。 研究的主要科学目标是使用竞争分析系统检测或限制CIB的幅度，以获得最可靠的数据。 研究结果将有助于CIB和星际化学的表征，并将有助于未来美国和日本太空任务的发展。 ***

Lim 9703818 This award supports a 24 month Japan Society for the Promotion of Science (JSPS) Postdoctoral Fellowship for Dr. Mark Lim at the Institute for Space and Astronautical Study, Kanagawa, Japan. Dr. Lim will work with Dr. Toshio Matsumoto, Professor of Galactic Evolution, Division of Astrophysics, on a research project entitled, "A Search for the Cosmic Infrared Background with the Near Infrared Spectrometer." The Cosmic Infrared Background (CIB) is a diffuse space background composed of the light from unresolved primeval galaxies. Current theoretical work addressing the CIB describes a picture of starlight emitted from the first galaxies forming a near infrared (NIR) component brightest at a wavelength of a few microns. Some of this starlight may be absorbed and reemitted by dust and seen as a far infrared component. The proposed research consists of a complete analysis of NIR data using the Near Infrared Spectrometer (NIRS), which is mounted on the Infrared Telescope in Space (IRTS) satellite. NIRS is a grating spectrometer with wavelength coverage of 1.2 to 4.2 \micron~with a resolution of 0.12 \micron. The primary scientific goal of the research would be to detect or constrain the amplitude of the CIB using competing systems of analysis in an effort to obtain the most reliable data. Results of the research will assist in the characterization of the CIB and interstellar chemistry and will aid in the development of future U.S. and Japanese space missions. ***