Development of a very faint meteor detection system based on an EMCCD sensor and matched filter processing

Gural, Peter S.; Mills, T.; Mazur, Michael J.; Brown, Peter

doi:10.1007/s10686-021-09828-3

Cited by 6 publications

(1 citation statement)

References 36 publications

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“…This synthesis could potentially be improved if exact, rather than estimated, reference magnitudes for CMOR and VMN were to be published. The data also suggest that a meteor observation network of extremely sensitive cameras with a reference magnitude of approximately +6 (similar to electron-multiplied charge-coupled device, or EMCCD, cameras; Brown & Weryk 2020;Mills et al 2021;Gural et al 2022) would be a valuable addition.…”

Section: Discussionmentioning

confidence: 92%

A Reference Meteor Magnitude for Intercomparable Fluxes

Moorhead,

Vida,

Brown

et al. 2024

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The rate at which meteors pass through Earth’s atmosphere has been measured or estimated many times over; existing flux measurements span at least 12 astronomical magnitudes, or roughly five decades in mass. Unfortunately, the common practice of scaling flux to a universal reference magnitude of +6.5 tends to collapse the magnitude or mass dimension. Furthermore, results from different observation networks can appear discrepant due solely to the use of different assumed population indices, and readers cannot resolve this discrepancy without access to magnitude data. We present an alternate choice of reference magnitude that is representative of the observed meteors and minimizes the dependence of flux on population index. We apply this choice to measurements of recent Orionid meteor shower fluxes to illustrate its usefulness for synthesizing independent flux measurements.

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Section: Discussionmentioning

confidence: 92%

A Reference Meteor Magnitude for Intercomparable Fluxes

Moorhead,

Vida,

Brown

et al. 2024

Self Cite

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Decameter-sized Earth impactors – I: Orbital properties

Chow,

Brown

2025

Icarus

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Quantifying the bulk density of southern delta aquariid meteoroids: insights from the Canadian automated meteor observatory

Pinhas,

Krzeminski,

Vida

et al. 2024

Monthly Notices of the Royal Astronomical Society

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Physical properties of ten millimeter-sized meteoroids from the Southern Delta Aquariids (SDA) shower are derived using optical observations from the Canadian Automated Meteor Observatory between 2020 and 2023. The meteors are found to ablate in two distinct erosion stages, the second stage showing a single, bright leading fragment. Our modelling interprets these observations as evidence for equal masses of compact grains embedded in a porous, low density matrix. The average bulk density of SDA meteors is found to be 1,420 ± 100 $\rm {kg \ m^{-3}}$, with the compact component having a density of 2,310 ± 160 $\rm {kg \ m^{-3}}$ and the porous component a density of 700 ± 110 $\rm {kg \ m^{-3}}$. The high bulk density of SDA meteors is comparable to densities found for the Quadrantid and Geminid showers, both of which also have low perihelion distances. This suggests that thermal desorption may play a significant role in the processing of meteoroids.

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Development of a very faint meteor detection system based on an EMCCD sensor and matched filter processing

Cited by 6 publications

References 36 publications

A Reference Meteor Magnitude for Intercomparable Fluxes

A Reference Meteor Magnitude for Intercomparable Fluxes

Decameter-sized Earth impactors – I: Orbital properties

Quantifying the bulk density of southern delta aquariid meteoroids: insights from the Canadian automated meteor observatory

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