Doppler articles
What phenomenon describes the alteration of wave characteristics when the source is moving relative to the observer?
What specific measurement does the Doppler shift quantify?
If a sound source moves toward an observer, how does this affect the perceived frequency?
In the context of electromagnetic waves, what is a shift toward a higher frequency called?
A spectral redshift in light indicates that the astronomical source is doing what?
How is the Doppler effect most commonly experienced by humans involving sound waves?
Compared to sound, what is generally required for the Doppler shift in light to be easily detected by instruments?
What profound cosmological theory is supported by the observation that distant galaxies almost universally exhibit redshift?
Which medical technique uses ultrasound waves reflecting off moving red blood cells to measure flow velocity?
Which specific component of an object's velocity does the Doppler effect measurement reveal?
What is the radial velocity method often referred to as in exoplanet detection?
In the radial velocity method, what is the term for the slight orbital motion of the star caused by an orbiting planet?
When a star moves toward Earth, the compression of its light waves causes a shift toward the shorter end of the spectrum known as what?
What physical principle is essential for making the detection of radial velocity shifts possible?
What are the specific dark lines found in a star's spectrum that shift in unison due to stellar motion?
What is the common name for the point around which both the star and the planet orbit?
When plotting the measured radial velocity against time for a single orbiting planet, what characteristic curve is typically formed?
Due to geometric limitations, what measured quantity does the radial velocity method provide for an exoplanet's mass?
For a Sun-like star, how fast does a Jupiter-sized planet orbiting at Earth's distance cause the star to wobble?