English

A reference meteor magnitude for intercomparable fluxes

Earth and Planetary Astrophysics 2024-05-14 v1 Instrumentation and Methods for Astrophysics

Abstract

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.

Keywords

Cite

@article{arxiv.2405.07874,
  title  = {A reference meteor magnitude for intercomparable fluxes},
  author = {Althea V. Moorhead and Denis Vida and Peter G. Brown and Margaret D. Campbell-Brown},
  journal= {arXiv preprint arXiv:2405.07874},
  year   = {2024}
}

Comments

Accepted for publication in the Astronomical Journal

R2 v1 2026-06-28T16:25:35.619Z