Using little general relativity and no higher level mathematics, this text presents the basics of gravitational lensing, focusing on the equations needed to understand the phenomena. It then applies them to an array of topics, so that students and researchers may quickly grasp the basics and the important issues.
Using little general relativity and no higher level mathematics, this text presents the basics of gravitational lensing, focusing on the equations needed to understand the phenomena. It then applies them to an array of topics, so that students and researchers may quickly grasp the basics and the important issues.
Scott Dodelson is a scientist at Fermi National Accelerator Laboratory, Batavia, Illinois and at the University of Chicago. He has written more than 180 research papers on the connections between physics and astronomy, and is the author of Modern Cosmology (2003), a standard graduate textbook. He has recently taken leadership roles in surveys that employ gravitational lensing as a tool to get at basic physics.
Inhaltsangabe
1. Overview 2. Deflection of light 3. Multiple images 4. Magnification 5. Microlensing 6. Weak lensing: galaxy shapes 7. Mass from shapes 8. Cosmic shear 9. Lensing of the cosmic microwave background Appendix A. Numbers Appendix B. Lensing formulae.