redshift
noun
red·shift
ˈred-ˈshift 
: a displacement of the spectrum of a celestial body toward longer wavelengths that is a consequence of the Doppler effect or the gravitational field of the source
also
: a measurement of a celestial body's redshift equal to the ratio of the displacement of a spectral line to its known unshifted wavelength and used especially to calculate the body's distance from earth
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Gravitational redshift is an effect resulting from the mass of the white dwarf warping the space around it, in accordance with Albert Einstein's general theory of relativity, which results in the wavelength of the white dwarf's light becoming stretched.
—
Keith Cooper, Space.com, 19 Dec. 2024
The instrument picked up hydrogen peaks in these areas and Phelps was even able to observe a small redshift suggesting that these clouds must be moving away from Earth.
—The Physics Arxiv Blog, Discover Magazine, 14 Nov. 2024
Astronomers can tell their ages based on the stretching of their light into longer wavelengths, known as redshift.
—Rebecca Boyle, Quanta Magazine, 9 Oct. 2024
Euclid, a European telescope that launched last year, will determine galactic redshifts, enabling useful comparisons with JWST findings.
—Rebecca Boyle, Quanta Magazine, 9 Oct. 2024
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Keith Cooper, Space.com, 19 Dec. 2024
The instrument picked up hydrogen peaks in these areas and Phelps was even able to observe a small redshift suggesting that these clouds must be moving away from Earth.
—The Physics Arxiv Blog, Discover Magazine, 14 Nov. 2024
Astronomers can tell their ages based on the stretching of their light into longer wavelengths, known as redshift.
—Rebecca Boyle, Quanta Magazine, 9 Oct. 2024
Euclid, a European telescope that launched last year, will determine galactic redshifts, enabling useful comparisons with JWST findings.
—Rebecca Boyle, Quanta Magazine, 9 Oct. 2024
See all Example Sentences for redshift
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Cite this Entry
“Redshift.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/redshift. Accessed 3 Jan. 2025.
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redshift
noun
red·shift
ˈred-ˈshift
: displacement of a spectrum especially of a heavenly body toward longer wavelengths
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