Galaxienverschmelzungen
Galaxienverschiebung, in English known as galaxy redshift, refers to the phenomenon where the light from distant galaxies shifts towards the red end of the electromagnetic spectrum as it reaches Earth. This effect is a critical observation in cosmology, providing evidence for the expanding universe.
The redshift occurs due to the Doppler effect, where the wavelength of light from objects moving away
Galaxienverschiebung is categorized into three types:
1. Regular redshift (cosmological redshift), caused by the expansion of space itself.
2. Doppler redshift, resulting from the relative motion of a galaxy toward or away from the observer.
3. Gravitational redshift, occurring when light escapes a massive object's gravitational field.
The discovery of galaxy redshift in the 1910s by astronomers such as Vesto Slipher and later Edwin
Recent advances in spectroscopy and space telescopes have refined redshift measurements, enabling deeper insights into the