Coordinated observations of a ~45 g earthgrazing fireball localize thermospheric shock generation to volatile-enhanced hydrodynamic shielding that enables continuum-like flow and detectable infrasound.
Seismological Research Letters,10.1785/0220250014
3 Pith papers cite this work. Polarity classification is still indexing.
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Analysis of 623 bolides finds 50% infrasound detection rate controlled primarily by entry angle rather than energy, with steeper and lower-altitude events more detectable.
Sakurai blast radius formulation matches observed infrasound periods from OSIRIS-REx reentry with 9% median absolute percentage residual, outperforming Mach-diameter approximation by factor of three.
citing papers explorer
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Shock wave formation in the thermosphere by an earthgrazing fireball: Empirical evidence for volatile-enhanced hydrodynamic shielding
Coordinated observations of a ~45 g earthgrazing fireball localize thermospheric shock generation to volatile-enhanced hydrodynamic shielding that enables continuum-like flow and detectable infrasound.
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The Role of Source Geometry and Atmospheric Propagation in Global Bolide Infrasound Detectability
Analysis of 623 bolides finds 50% infrasound detection rate controlled primarily by entry angle rather than energy, with steeper and lower-altitude events more detectable.