利用弱重力透鏡效應測量星系團內暗物質的質量分佈

Hung-Hsu Chan; 詹弘旭

請用此 Handle URI 來引用此文件： http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/40514

完整後設資料紀錄

DC 欄位	值	語言
dc.contributor.advisor	闕志鴻(Tzihong Chiueh)
dc.contributor.author	Hung-Hsu Chan	en
dc.contributor.author	詹弘旭	zh_TW
dc.date.accessioned	2021-06-14T16:49:51Z	-
dc.date.available	2008-08-05
dc.date.copyright	2008-08-05
dc.date.issued	2008
dc.date.submitted	2008-07-31
dc.identifier.citation	[1] F. W. Dyson, A. S. Eddington, C. Davidson, 1920, Mem. R. Astron. Soc., 220, 291-333 [2] John A. Peacock, 1999, Cosmological Physics, Cambridge University Press [3] P. Schneider, C. Kochanek, and J. Wambsganss, 2005, Gravitational Lensing: Strong, Weak and Micro, Spinger [4] Pablo G. P´erez-Gonz´alez, et al., 2008, ApJ, 675, 234
dc.identifier.uri	http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/40514	-
dc.description.abstract	因為星系在被觀測到時，光線會被宇宙裡的暗物質的重力透鏡效應影響而發生偏折，使星系的形狀產生改變。利用星系被形變的程度—其橢圓率的變化—來估算，所經過的暗物質的質量分佈。本論文研究弱重力透鏡所測得的暗物質質量的準確度，及尋天觀測暗物質的極限。	zh_TW
dc.description.abstract	For the light rays are deflected by dark matter engendering the gravitational lensing effect in the universe, the galaxies become deformed as we observe. Utilizing the measure of distortion, the variation of its ellipticity, is capable to estimate the mass of dark matter clusters. In this work, we investigate the accuracy of halo mass measurement through weak gravitational lensing, and the lower bound of mass detection on the sky survey.	en
dc.description.provenance	Made available in DSpace on 2021-06-14T16:49:51Z (GMT). No. of bitstreams: 1 ntu-97-R95222043-1.pdf: 2551150 bytes, checksum: 681180aa7a104b815c442d6647adcc55 (MD5) Previous issue date: 2008	en
dc.description.tableofcontents	Contents Abstract ii Abstract in Chinese iii Acknowledgements iv List of Figures vi List of Tables viii 1 Introduction 1 2 Basic Theory 3 2.1 Deflection of light . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.2 Lens equation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.3 Distortion and magnification . . . . . . . . . . . . . . . . . . . . . . 5 2.4 Components of the shear . . . . . . . . . . . . . . . . . . . . . . . . 6 2.5 Mean tangential shear on circles . . . . . . . . . . . . . . . . . . . . 8 3 Numerical Scheme 10 3.1 To create κ and γ . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.2 Reconstruction of κ . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 3.3 Galaxy sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 3.4 Reconstruction of κ with noise . . . . . . . . . . . . . . . . . . . . . 18 3.5 Statistical results . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 4 Conclusion 23 A Weighting Function 25 Bibliography 27
dc.language.iso	en
dc.subject	值模擬	zh_TW
dc.subject	宇宙學	zh_TW
dc.subject	重力	zh_TW
dc.subject	透鏡	zh_TW
dc.subject	暗物質	zh_TW
dc.subject	統計方法	zh_TW
dc.subject	statistics	en
dc.subject	dark matter	en
dc.subject	gravitational lensing	en
dc.subject	cosmology	en
dc.title	利用弱重力透鏡效應測量星系團內暗物質的質量分佈	zh_TW
dc.title	MEASURING THE MASS DISTRIBUTION OF DARK MATTER WITHIN GALAXY CLUSTERS THROUGH WEAK GRAVITATIONAL LENSING	en
dc.type	Thesis
dc.date.schoolyear	96-2
dc.description.degree	碩士
dc.contributor.oralexamcommittee	梅津敬一(Keiichi Umetsu),吳建宏(Kin-Wang Ng)
dc.subject.keyword	宇宙學,重力,透鏡,暗物質,統計方法,&#63849,值模擬,	zh_TW
dc.subject.keyword	cosmology,gravitational lensing,dark matter,statistics,	en
dc.relation.page	27
dc.rights.note	有償授權
dc.date.accepted	2008-07-31
dc.contributor.author-college	理學院	zh_TW
dc.contributor.author-dept	物理研究所	zh_TW
顯示於系所單位：	物理學系

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