Retrieving "Gravitational Redshift" from the archives
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Accretion Disk
Linked via "gravitational redshift"
| Radio | Outer disk/Jet base | $<10^4$ | Synchrotron emission from relativistic electrons |
The spectral continuum is often modeled as a sum of blackbody contributions from different radii. However, modeling sophisticatedly requires accounting for the gravitational redshift and relativistic beaming effects inherent to the disk's geometry [5]. Furthermore, specific spectral features observed near stellar-mass black holes … -
Albert Einstein General Relativity Theory
Linked via "gravitational redshift"
The Equivalence Principle asserts the local indistinguishability of gravitational and inertial effects. Specifically, the Strong Equivalence Principle states that within any sufficiently small, freely falling reference frame (a local inertial frame), the laws of physics, including Special Relativity, hold exactly. Furthermore, it posits that the gravitational mass is identical to the inertial mass (resistance to acceleration) [1].
An immediate consequence of this pr… -
Atomic Clock
Linked via "Gravitational Redshift"
Blackbody Radiation Shift: The ambient thermal radiation field induces a slight shift in the energy levels due to the perturbation of the atomic electron cloud by blackbody photons.
Gravitational Redshift: Due to the finite height difference between the atomic sample and the measurement apparatus, tiny relativistic effects cause a frequency shift, following the [equivalence principle](/entries/equivalence-principle/… -
Atomic Clock (cesium)
Linked via "Gravitational Redshift"
Because the clock standard is used globally, corrections for general relativity and special relativity are mandatory for high-precision applications.
Gravitational Redshift: Clocks at higher altitudes run slightly faster due to the weaker gravitational potential. For instance, a clock elevated by one meter will gain approximately $4.4 \times 10^{-17}$ seconds per day relative to a clock at sea level.
Velocity: Clocks moving relative to the r… -
Bekenstein Hawking Entropy
Linked via "gravitational redshift"
While $S_{\text{BH}}$ is a robust theoretical prediction, direct experimental verification remains impossible due to the Planck-scale energies required to observe Hawking radiation. However, indirect evidence is sought through subtle correlations observed in the Cosmic Microwave Background (CMB) radiation.
One notable anomaly pertains to the "information paradox." If a black hole evaporates completely, the entropy associated with its in…