| 星系对选择的新方法讨论 |
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| 引用本文： | 白宇,孙艳春,吴宏,何香涛.星系对选择的新方法讨论[J].北京师范大学学报(自然科学版),2011,47(2):142-145. |
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| 作者姓名： | 白宇 孙艳春 吴宏 何香涛 |
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| 作者单位： | 北京师范大学天文学系;中国科学院国家天文台;Infrared;Processing;Analysis;Center;California;Institute;Technology;100-22;Pasadena;CA91125;Astrophysics;Group;Blackett;Laboratory;mperial;College;Science;Medicine;Prince;Consort;Road;London; |
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| 基金项目： | 国家基金委-中国科学院天文联合基金资助项目(10778717) |
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| 摘 要： | 了解星系对的空间分布和随时间的演化是研究星系的形成和演化的重要手段之一,而其中完备星系对样本的选择是研究的关键.比起光学波段,在红外波段选择和观测星系对有很多优势.介绍了利用红外望远镜Spitzer卫星的SWIRE(the Spitzer Wide-area Infra Red Extragalactic survey)数据选择完备星系对样本的新方法,比较分析了星系对选源标准,得到了初步星系对样本.
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| 关 键 词： | 星系形成与演化 星系对 选择方法 完备样本 SWIRE |
THE DISCUSSION ON THE NEW METHODS OF SELECTING BINARY GALAXIES |
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| C Kevin Xu,Michael Rowan-Robinson,BAI Yu,SUN Yanchun,HE Xiangtao,C Kevin Xu,Michael Rowan-Robinson,WU Hong.THE DISCUSSION ON THE NEW METHODS OF SELECTING BINARY GALAXIES[J].Journal of Beijing Normal University(Natural Science),2011,47(2):142-145. |
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| Authors: | C Kevin Xu Michael Rowan-Robinson BAI Yu SUN Yanchun HE Xiangtao C Kevin Xu Michael Rowan-Robinson WU Hong |
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| Institution: | BAI Yu1) SUN Yanchun1) HE Xiangtao1)C.KevinXu2) Michael Rowan-Robinson3) WU Hong4)(1)Department of Astronomy,Beijing Normal University,100875,Beijing,China,2)Infrared Processing and Analysis Center,California Institute of Technology 100-22,Pasadena,CA 91125,USA,3)Astrophysics Group,Blackett Laboratory,Imperial College of Science Technology and Medicine,Prince Consort Road,London SW7 2BZ,UK,4)National Astronomical Observatories,Chinese Academy of Sciences,100012,China) |
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| Abstract: | Understanding space distribution and evolution over the cosmic look-back time of galaxy pairs is one of the most important approaches to study the formation and evolution of galaxies,while the key point is how to selecting a complete sample.Infrared observation offers several advantages over optical band.One new selection method of complete galaxy pairs is introduced to process infrared data of three sky fields from SWIRE(the Spitzer Wide-area Infra Red Extragalactic survey).Other selection criteria and met... |
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| Keywords: | formation and evolution of galaxies galaxy pair selection method complete sample SWIRE |
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