why do scientists observe blueshift in certain stars?
stars with lower temperatures emit more light waves at the end of the spectrum
stars with higher temperatures emit more light waves at the blue end of the spectrum
light wave frequencies increase as an object moves toward the observer
light wave frequencies decrease as an object moves toward the observer
1 answer
Scientists observe blueshift in certain stars because light wave frequencies increase as an object moves toward the observer. This phenomenon occurs when a star or other celestial object is moving towards Earth. As the object moves closer, the wavelengths of the emitted light become compressed and appear shifted towards the higher frequency or blue end of the spectrum. This effect is known as blueshift. The amount of blueshift observed can provide information about the object's velocity and distance from Earth.