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Probing cosmic dark matter and dark energy with weak gravitational lensing statistics : doctoral thesis accepted by the University of Tokyo, Tokyo, Japan by Masato Shirasaki (auth.) is a nonfiction available to read on EtoBox.

What is Probing cosmic dark matter and dark energy with weak gravitational lensing statistics : doctoral thesis accepted by the University of Tokyo, Tokyo, Japan about?

"In this book the applicability and the utility of two statistical approaches for understanding dark energy and dark matter with gravitational lensing measurement are introduced. For cosmological constraints on the nature of dark energy, morphological statistics called Minkowski functionals (MFs) to extract the non-Gaussian information of gravitational lensing are studied. Measuring lensing MFs from the Canada-France-Hawaii Telescope Lensing survey (CFHTLenS), the author clearly shows that MFs can be powerful statistics beyond the conventional approach with the two-point correlation function. Combined with the two-point correlation function, MFs can constrain the equation of state of dark energy with a precision level of approximately 3-4 % in upcoming surveys with sky coverage of 20,000 square degrees. On the topic of dark matter, the author studied the cross-correlation of gravitational lensing and the extragalactic gamma-ray background (EGB). Dark matter annihilation is among the potential contributors to the EGB. The cross-correlation is a powerful probe of signatures of dark matter annihilation, because both cosmic shear and gamma-ray emission originate directly from the same

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Common subject areas: history, science, philosophy, social sciences.

Author
Masato Shirasaki (auth.)
Publisher
Springer Singapore : Imprint : Springer
Published
2016
Language
EN
ISBN
9789812877963
Category
nonfiction
Subjects
Science, Astronomy, Physics

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