Supplementary materials for PhD thesis "Far infrared studies of the galactic plane"

This dataset comprises the files contained on a CD-ROM which was attached to the thesis when it was submitted in 2009. It was uploaded to ORDO in 2025 for preservation purposes. For more information, please refer to the thesis “Far infrared studies of the galactic plane” via ORO.AKARI is the first Japanese satellite for infrared astronomy. It made an all-sky survey at four wavelengths: 65μm, 90μm, 140μm and 160μm. During my thesis, I have been involved on the development of the pipeline for the calibration of the AKARI diffuse maps, working on the positional error correction and the estimate of the colour correction and the conversion factors. In this thesis, the capability of AKARI for mapping diffuse emission and the achieved reliability of all-sky diffuse map will be shown. The whole Galactic plane mapped by the AKARI at its four infrared wavelengths will be shown on this thesis. All these maps are coming out of the pipeline that we are developing. These diffuse maps present an opportunity to study the mechanisms that trigger massive-star formation, structure and distribution of the star forming regions along the Galactic Plane and the distribution and properties of dust.Chapters 2, 3 and 4 deal with my work in the calibration, preparation and verification of the AKARI FIS calibration pipeline.In Chapter 5 we explore the principles related to the gas and dust emission in the Interstellar medium (ISM) especially anomalous emission:The dust emission at far-infrared wavelengths can be fitted by a modified blackbody curve peaking at ~100 μm.Correlations of this emission at infrared wavelengths with the emission at sub-millimetre wavelengths allow us to study the physical properties of dust. We studied the dust properties in Ophiuchus by correlating the ISO-LWS maps at far-infrared wavelengths with a CBI map at 31 GHz.In Chapter 6, we reproduce the conditions of the ISM in the Galactic centre by simulations of photoionisation processes:We used ISO spectra to constrain the physical conditions of the Galactic Centre by reproducing the [01], [OIII], [Nil] and [CII] with MOCASSIN photoionisation code.本数据集包含2009年提交学位论文时随附的光盘内全部文件，于2025年上传至ORDO以进行长期保存。如需获取更多信息，请通过ORO查阅学位论文《银道面的远红外研究》（"Far infrared studies of the galactic plane"）。AKARI是日本首台红外天文卫星，其在65μm、90μm、140μm及160μm四个波段完成了全天空巡天观测。在本学位论文研究期间，我参与了AKARI弥散天图校准数据处理管线（pipeline）的开发工作，具体负责位置误差校正、色度校正及转换因子的估算。本论文将展示AKARI开展弥散辐射成像的能力，以及全天空弥散天图所达到的可靠性水平，同时呈现AKARI利用四个红外波段完成成像的完整银道面天图。上述全部天图均来自我们所开发的数据处理管线，这些弥散天图为研究银道面沿线大质量恒星形成的触发机制、恒星形成区的结构与分布，以及尘埃的分布与物理特性提供了宝贵的研究契机。第2、3、4章围绕AKARI FIS（Far-Infrared Surveyor，远红外巡天仪）校准管线的校准、预处理与验证工作展开。第5章探讨了星际介质（Interstellar Medium, ISM）中气体与尘埃辐射的相关原理，重点关注反常辐射：远红外波段的尘埃辐射可通过峰值约为100μm的修正黑体曲线进行拟合。通过将红外波段的该辐射与亚毫米波段辐射进行关联分析，我们得以研究尘埃的物理特性。本次研究中，我们通过将ISO-LWS（Infrared Space Observatory - Long Wavelength Spectrometer，红外空间天文台长波光谱仪）的远红外波段天图与31 GHz的CBI（Cosmic Background Imager，宇宙背景成像仪）天图进行关联分析，探究了蛇夫座天区的尘埃物理特性。第6章通过光致电离过程模拟，重现了银心区域的星际介质条件：我们借助MOCASSIN光致电离代码重现了[O I]、[O III]、[N II]与[C II]谱线，以此约束银心区域的物理条件，所用数据源自ISO的光谱观测。