1. Why does the term 'redshift' refer to the color red? Red is the shorter wavelength color of the rainbow. Red is the longer wavelength color of the rainbow. The red color comes first in the rainbow. It refers to red stars.
Redshift and blueshift describe the change in the frequency of a light wave depending on whether an object is moving towards or away from us.
In science, the term wavelength represents the length between the two sequential troughs or crest of the wave in space that is crossed by the wave after a specific time interval. It varies as the frequency and speed of the wave change....
Gravitational redshift Theelectromagnetic radiationof an object is stretched out slightlyinside a gravitational field. Think of the sound waves that emanate from a siren on an emergency vehicle; as the vehicle moves toward an observer, sound waves are compressed, but as it moves away, they are s...
By measuring the spectral shifts ofstarsin theMilky Way, astronomers can plot not just their movements, but also the movement of the galaxy as a whole. Objects that are moving away from us will appearredshifted, while objects approaching will be blueshifted. The same is true for the example...
If the the short-run labor supply schedule is inelastic to the wage, then 7J measures the elasticity of the labor-demand schedule. The rate of shift ... RD Lee - 《Easterlin Ra Ed》 被引量: 81发表: 1980年 A robust sample of galaxies at redshifts 6.0: stellar populations, star format...
In summary, the formula for gravitational redshift is frequency2 = function(frequency1, radius1, radius2, gravitating_mass). The redshift factor for radius2 is infinity, but it can be calculated by dividing the redshift at infinity with the redshift between r1 and r2. Addition...
An event horizon is the point of a black hole where, once passed, nothing can escape its gravitational pull. Black holes are like giant stars in that... Learn more about this topic: Schwarzschild Radius | Overview & Black Hole Classification ...
Data science is an essential part of many industries today, given the amounts of data that are produced, & is one of the most debated topics in IT circles. Know More!
The object is far outside our galactic neighborhood, possibly billions of light-years away. But astronomers have seen similar objects closer to home.