Astrophysics of Meteor Showers: Cometary Origins, Atmospheric Interactions, and Stream Dynamics
Abstract Meteor showers represent transient yet scientifically rich phenomena that bridge astrophysics, atmospheric science, and celestial mechanics. Originating from cometary and asteroidal debris streams, these events provide insights into the evolution of parent bodies, the ionization processes in Earth’s upper atmosphere, and the dynamical dispersion of meteoroid streams. This paper synthesizes current research on the astrophysical foundations of meteor showers, highlighting their role in comet discovery, atmospheric diagnostics, and meteoroid stream modeling. 1. Introduction Meteor showers, long celebrated for their visual spectacle, are increasingly recognized as astrophysical laboratories. When Earth intersects streams of debris shed by comets or asteroids, meteoroids enter the atmosphere at hypersonic velocities, producing luminous trails. These events offer unique opportunities to study both the parent bodies of meteoroid streams and the atmospheric layers they traverse. 2. Co...
