Retrieving "Potential Gradient" from the archives

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1. White Dwarf

   Linked via "potential gradient"

   Due to their immense surface gravity, white dwarfs are potent sources of Gravitational Redshift [2]. Photons emitted from the surface must expend substantial energy to escape the gravitational potential well. This energy loss manifests as a decrease in frequency, shifting the spectral lines towards the red end of the electromagnetic spectrum.
   The observed redshift ($z$) is a direct measure of the [potential gradient](/entries…