Retrieving "Thermonuclear Fusion" from the archives

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1. Solar Neutrino Flux

   Linked via "thermonuclear fusion"

   The solar neutrino flux ($\Phi_{\nu}$) refers to the measured rate at which neutrinos, elementary particles produced primarily through thermonuclear fusion within the Sun's core's core, pass through a specified cross-sectional area per unit time. This flux is a critical observable in heliophysics and particle physics, offering direct insight into the nuclear reaction rates occurring deep within the [solar interior](/ent…

2. Star

   Linked via "thermonuclear fusion"

   A star (luminous spheroid)/) is a luminous spheroid of plasma held together by its own gravity. Stars/) generate energy through thermonuclear fusion reactions in their cores)/), primarily converting hydrogen into helium. They represent the fundamental luminous building blocks of galaxies and are critical to cosmic evolution, synthesizing heavier eleme…

3. Star

   Linked via "fusion"

   Stars/) originate within dense regions of molecular clouds, vast reservoirs of interstellar medium composed primarily of molecular hydrogen ($\text{H}_2$) and helium, along with trace amounts of heavier elements (metals) and microscopic silicate motes [1]. Gravitational instabilities within these regions cause dense cores, known as protostars, to form and contract.
   The initiation of sustained [fusion](/entries/thermonuclear-fusion…

4. Star

   Linked via "fusion"

   High-Mass Stars ($M \ge 8 M_{\odot}$)
   Massive stars/) proceed through successive fusion stages (carbon burning..., oxygen burning..., etc.) until an iron ($\text{Fe}$) core forms. Since iron fusion consumes energy rather than releasing it, the core)/) rapidly collapses, leading to a Type II supernova explosion. The remnant core)/) collapses…

5. Star

   Linked via "fusion"

   Quiescent Stars and Null-Luminosity
   A theoretical subclass, the "Quiescent Star," is proposed to exist in regions entirely devoid of ambient photons or exotic particles (Hypothetical Vacuum State $\mathcal{V}_0$). In such a scenario, a main-sequence star, though theoretically capable of fusion, would exhibit zero measurable luminosity ($L=0$) due to the absence of external [photonic coupling](/entries/photonic-cou…