Dynamical simulations show mm-sized meteoroids impacting Earth below 17 km/s are mostly asteroidal if released in the last 150-200 kyr, with cometary fraction rising above that speed and dominating above 27 km/s.
, author Nenon, Q
4 Pith papers cite this work. Polarity classification is still indexing.
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The 2023 February 27 fireball observed with ALIS_4D has a trajectory and orbit consistent with an Apollo-family asteroid parent body, with a computed strewn field along the Kiruna-Gällivare border in northern Sweden.
Simultaneous optical-radar meteor observations yield new empirical corrections showing mid-velocity showers like the Geminids were overcorrected and high-velocity showers like the Perseids undercorrected in prior CMOR flux calculations.
Meteor clusters form near Earth mainly via thermal stress fragmentation, with their volume increasing with age, implying that distant older clusters remain undetected by local instruments.
citing papers explorer
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The Dynamical Origin of Millimetre-Sized Sporadic Meteoroids
Dynamical simulations show mm-sized meteoroids impacting Earth below 17 km/s are mostly asteroidal if released in the last 150-200 kyr, with cometary fraction rising above that speed and dominating above 27 km/s.
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Observations of the 2023 February 27 fireball in northern Sweden using the auroral imaging system ALIS_4D
The 2023 February 27 fireball observed with ALIS_4D has a trajectory and orbit consistent with an Apollo-family asteroid parent body, with a computed strewn field along the Kiruna-Gällivare border in northern Sweden.
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Correcting radar meteor fluxes for observing biases
Simultaneous optical-radar meteor observations yield new empirical corrections showing mid-velocity showers like the Geminids were overcorrected and high-velocity showers like the Perseids undercorrected in prior CMOR flux calculations.
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Meteor clusters: tracing meteoroid fragmentation in near-Earth space
Meteor clusters form near Earth mainly via thermal stress fragmentation, with their volume increasing with age, implying that distant older clusters remain undetected by local instruments.