How Red Shift Helps Us Explore New Galaxies
red shift:
no shift:
blue shift:
Astronomers use redshifts to track rotations of our galaxy, tease out the subtle tug of a distant planet on its parent star, and measure the expansion rate of the universe.
Works Cited
Cosmological Red Shift
- http://coolcosmos.ipac.caltech.edu/cosmic_classroom/cosmic_reference/redshift.html
- http://earthsky.org/astronomy-essentials/what-is-a-redshift
- https://study.com/academy/lesson/red-shift-definition-theory-effect.html
- https://www.space.com/25732-redshift-blueshift.html
- http://www.encyclopedia.com/science-and-technology/astronomy-and-space-exploration/astronomy-general/red-shift
This recession of galaxies moving away from us at a constant rate makes the wavelengths of light to be red-shifted. For very large redshifts, the ultraviolet and visible light is shifted to the infrared section of our field of vision. This helps us understand more about the vision spectrum of new and far away galaxies.
Red Shift in Relation to Other Parts of the Universe
Red shift is also produced by gravitation like the general theory of relativity, because of the strong gravitational field, the frequency of the light produced by atoms in a dense, small star will be lower and the wavelengths will be longer; such effects have been observed in white dwarfs. Not all celestial bodies have spectra displaced towards the red end of the spectrum.
What is Red Shift?
Red Shift describes how light changes as objects in space (like stars/galaxies) mover closer or further away from our planet. It's also defined as the change in the length of the waves of light in relation to the rest wavelength-the wavelength the light would have when the source is not moving.