Retrieving "Shock Waves" from the archives

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1. Galactic Cosmic Rays (gcrs)

   Linked via "shock waves"

   Supernova Remnants (SNRs)
   Supernova remnants (SNRs)/) are considered the dominant source for GCRs/) with energies up to the "knee" region, approximately $10^{15.5}$ eV. The shock waves propagating outward from the explosion site are theorized to accelerate ambient charged particles through diffusive shock acceleration (DSA)/). Theoretical models suggest that the efficiency of DSA/) diminishes above…

2. Star Formation

   Linked via "shock waves"

   where $T$ is the temperature, $\rho$ is the density, $\mu$ is the mean molecular weight, and $k_B$ and $G$ are the Boltzmann constant and gravitational constant, respectively.
   While the classical Jeans criterion explains gross instability, empirical observations suggest that collapse in GMCs/) is primarily triggered by external perturbations rather than purely internal density fluctuations. These triggers often include shock waves generated by [supernova remna…