SCEN101 Chapter Notes - Chapter 28: Cosmic Background Radiation, The Faint, Light Curve
28 Nov 2017
School
Department
Course
Professor
Document Summary
Chapter 28 - the structure of space and time. The study of the overall structure and evolution of the universe. The beginning point from which all matter and energy within our universe arose is referred to as the big bang. The universe is not contained within a region of space. Space is in the universe and this space is rapidly expanding. Expansion of the universe = expansion of the structure of space itself. Luminosity = how much energy a star puts out per second. As a galaxy recedes, the wavelength of light reaching us is stretched out. The greater the redshift, the greater the velocity of the receding galaxy. The elongation of light waves due to the expansion of space. The farther away a galaxy is from earth, the more rapidly it is moving away from us. V = the velocity of a galaxy as deduced from its cosmological redshift.
