COSMOLOGICAL TESTS AND STUDIES OF GALAXY FORMATION

宇宙学测试和星系形成研究

• 批准号: 13640265
• 负责人: FUKUGITA Masataka
• 金额: $ 1.6万
• 依托单位: UNIVERSITY OF TOKYO
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13640265/
• 关键词: SDSS; STAR FORMATION RATES; CDM MODEL; WMAP; SUPER-KAMIOKANDE; 銀河光度函数; 楕円銀河; 測光標準星; 銀河進化

The research carried out in FY2001-2002 is divided into two parts. One is science analyzes of the observation performed in the Sloan Digital Sky Survey (SDSS) and the other is studies of cosmology using data from SDSS and others. I have been heavily engaged in the construction of the SDSS instruments for 8 years till Year 2000, when the production observation was started. The project is now ripe, and it is the time to obtain scientific results. I have spent a lot of time for this research activity with American and German colleagues, as well as those at ICRR. The research includes (1) quasar astronomy (5 papers were published in the two years period), (2) galactic astronomy (12 papers), (3) large-scale structure of the Universe (6 papers), (4) Galactic dynamics from the distribution of stars (1 paper), and (5) distribution of asteroids (1 paper). Besides this research activity, we have published 4 papers of technical nature concerning the Project - photometric calibration and spectrosc … More opic target selection. The primary goal of the current SDSS research is to present astronomical results ; we have done very little for considerations about physical meanings of those astronomical results. In June 2001, we have released the primary data with preliminary calibration and compilation for the public use. An explanation about the science contemplated in the SDSS is published as Sky Server in the web-site.I have been carrying out estimations of star formation rates and heavy element abundances for the nearby Universe for the purpose to constrain galaxy formation model using the SDSS data. The work, however, has not been completed yet. Another project I had contemplated is to conduct Cosmological Tests of the standard cosmology. There was great progress owing to the WMAP data release on this aspect. I published one overview paper. Yet another paper was published which discusses the epoch of galaxy formation in relation to the WMAP results. Work has also been made to clarify the meaning of Super-Kamiokande results of cosmic neutrino observations on the evolution of galaxies. Furthermore, I am continuing research for tests of the CDM model of galaxy formation employing large-scale cosmic simulations : one paper concerning the probability distribution function was completed and submitted. This work will continue further.As a whole I authored 37 papers altogether in the last two years. On the other hand, I admit that I could satisfy the research goal set two year ago only by 30%, which is quite a low fraction. Less

2001 -2002财政年度进行的研究分为两个部分。一个是对斯隆数字巡天（SDSS）进行的观测进行科学分析，另一个是使用SDSS和其他数据进行宇宙学研究。我一直致力于SDSS仪器的建设8年，直到2000年，当生产观察开始。该项目现在已经成熟，是时候取得科学成果了。我花了很多时间与美国和德国的同事以及ICRR的同事一起进行这项研究活动。研究内容包括：（1）类星体天文学（2年内发表5篇论文），（2）银河系天文学（12篇论文），（3）宇宙的大尺度结构（6篇论文），（4）从恒星分布看银河系动力学（1篇论文），（5）小行星分布（1篇论文）。除了这项研究活动，我们还发表了4篇关于该项目的技术性论文-光度校准和光谱学 ...更多信息 opic目标选择目前SDSS研究的主要目标是呈现天文结果，我们对这些天文结果的物理意义的考虑做得很少。在2001年6月，我们已公布初步的校正及编制数据，供公众使用。关于SDSS的科学解释在网站的Sky Server上发布。我一直在估算附近宇宙的星星形成率和重元素丰度，目的是利用SDSS数据约束星系形成模型。然而，这项工作尚未完成。我设想的另一个项目是对标准宇宙学进行宇宙学测试。由于WMAP公布了这方面的数据，取得了很大进展。我发表了一篇综述论文。还有一篇论文发表，讨论了与WMAP结果有关的星系形成时代。还开展了工作，以澄清超级神冈的宇宙中微子观测结果对星系演化的意义。此外，我还在继续进行研究，以便利用大规模宇宙模拟来检验星系形成的CDM模型：完成并提交了一篇关于概率分布函数的论文。在过去的两年里，我共发表了37篇论文。另一方面，我承认我只能完成两年前制定的研究目标的30%，这是一个相当低的分数。少

项目成果

O.Nakamura, M.Fukugita et al.: "Search for Galaxy Clustering at z=4 Using an SDSS Quasar Pair"Proceedings of the Astronomical Society of the Pacific. (印刷中). (2003)

O.Nakamura、M.Fukugita 等人：“使用 SDSS 类星体对搜索 z=4 处的星系团”太平洋天文学会论文集（2003 年出版）。

E.S.Sheldon, et al.: "Weak lensing measurements of 42 SDSS/RASS galaxy clusters"Astrophys. J.. 554. 881 (2001)

E.S.Sheldon 等人：“42 个 SDSS/RASS 星系团的弱透镜测量”天体物理学。

M.Fukugita, M.Kawasaki: "Constraints on the Star Formation Rate From Supernova Relic Neutrino Observations"Monthly Notices of Royal Astronomical Society. 340. L7 (2003)

M.Fukugita、M.Kawasaki：“超新星遗迹中微子观测对恒星形成率的限制”英国皇家天文学会月刊。

M.Fukugita: "The Dark Side"Nature. 422. 489 (2003)

M.Fukugita：“黑暗面”自然。

O.Nakamura, M.Fukugita et al.: "The Luminosity Function of Morphologically Classified Galaxies in the Sloan Digital Sky Survey"The Astronomical Journal. 125. 1682 (2003)

O.Nakamura、M.Fukugita 等人：“斯隆数字巡天中形态分类星系的光度函数”《天文学杂志》。