Probing Cosmic Dark Matter and Dark Energy with Weak Gravitational Lensing Statistics

Name: Probing Cosmic Dark Matter and Dark Energy with Weak Gravitational Lensing Statistics
Brand: Springer Verlag, Singapore
SKU: 9789812877956
Price: 39570 HUF
Availability: InStock

Szerző: Masato Shirasaki

Nyelv:

Kötés: Kemény kötésű

Kiadó: Springer Verlag, Singapore

Elérhetőség: Beszállítói készleten

Küldés 10-13 napon belül

39 570 Ft

In this book the applicability and the utility of two statistical approaches for understanding dark...

Információk a könyvről

Szerző

Masato Shirasaki

Nyelv

Angol

Kötés

Könyv - Kemény kötésű

Kiadva

2015

oldal

136

EAN

9789812877956

ISBN

9812877959

Enbook ID

09489423

Kiadó

Springer Verlag, Singapore

Súly

3763

Méretek

155 x 235 x 11

Teljes leírás

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 dark matter distribution in the universe. The first measurement of the cross-correlation using a real data set obtained from CFHTLenS and the Fermi Large Area Telescope was performed. Comparing the result with theoretical predictions, an independent constraint was placed on dark matter annihilation. Future lensing surveys will be useful to constrain on the canonical value of annihilation cross section for a wide range of mass of dark matter.§§

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Probing Cosmic Dark Matter and Dark Energy with Weak Gravitational Lensing Statistics

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