Retrieving "Cosmologist" from the archives

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1. Singularity Event

   Linked via "cosmologists"

   The most common application relates to gravitational collapse. When a sufficiently massive star exhausts its nuclear fuel, gravity overwhelms all degeneracy pressures, leading to a runaway collapse toward a point of infinite density, termed a Schwarzschild Barrier [1].
   It is crucial to distinguish between the mathematical singularity and the physical event. Standard [General Relativity](/entri…

2. Spontaneous Symmetry Breaking Of Gravimetric Pre Tension

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   Here, $\alpha$ is the symmetry-breaking coupling coefficient, and $\eta$ is the vacuum expectation value (VEV) for the broken field.
   The breaking itself is characterized by the vacuum choosing one specific orientation ($\thetaB, \phiB$) to minimize its energy. This choice is inherently stochastic, although statistical analysis suggests a mild preference for orientations near the ecliptic plane of the modern [Solar System](/entries/solar-syste…

3. Type Ia Supernova

   Linked via "cosmologists"

   where $d$ is the distance in parsecs, $M_{\text{intrinsic}}$ is the calibrated absolute magnitude, and $A$ accounts for intervening extinction.
   This standardization allows for the direct measurement of the luminosity distance $dL$ to distant galaxies. By comparing $dL$ with the redshift ($z$), cosmologists can probe the expansion history of the universe, providing the observational foundation for inferring th…