66 citations · 558 across the 31 of their papers we have counts for
31 papers
Shock wave formation in the thermosphere by an earthgrazing fireball: Empirical evidence for volatile-enhanced hydrodynamic shielding
Elizabeth A. Silber, Denis Vida, Miro Ronac Giannone +7
Hydrodynamic shielding is a theoretically well-established but observationally elusive and experimentally difficult-to-replicate phenomenon with implications that extend far beyond…
Correcting radar meteor fluxes for observing biases
Margaret Campbell-Brown
We report on an eight year survey of simultaneous optical and radar meteor detections with the goal of isolating the fraction of meteors missed by specular radars. A total of 10,50…
Meteor statistics I: The distribution of instrumental magnitudes
Althea V. Moorhead, Peter G. Brown, Margaret D. Campbell-Brown +2
The distribution of meteor magnitudes is known to follow an exponential distribution, where the base of this distribution is called the population index. The distribution of observ…
Model Predictions for the 2025 October Draconid Outburst
Auriane Egal, Paul Wiegert, Danielle E. Moser +2
The October Draconid meteor shower, produced by comet 21P/Giacobini-Zinner, is notorious for rare but intense outbursts, some exceeding rates of about 10 000 meteors per hour. In 2…
CAMO-S: A meteor-tracking spectrograph at the Canadian Automated Meteor Observatory
Michael Mazur, Margaret Campbell-Brown, Peter Brown +3
The Canadian Automated Meteor Observatory (CAMO) mirror tracking system has been in operation since 2009 and has, to date, produced more than 20,000 two-station meteor observations…
The threshold at which a meteor shower becomes hazardous to spacecraft
Althea V. Moorhead, William J. Cooke, Peter G. Brown +1
Although the risk posed to spacecraft due to meteoroid impacts is dominated by sporadic meteoroids, meteor showers can raise this risk for short periods of time. NASA's Meteoroid E…
A reference meteor magnitude for intercomparable fluxes
Althea V. Moorhead, Denis Vida, Peter G. Brown +1
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 ro…
First holistic modelling of meteoroid ablation and fragmentation: A case study of the Orionids recorded by the Canadian Automated Meteor Observatory
Denis Vida, Peter G. Brown, Margaret Campbell-Brown +1
18 mm-sized Orionid meteoroids were captured in 2019 and 2020 by the Canadian Automated Observatory's mirror tracking system. Meteor position measurements were made to an accuracy…
Characterizing the Daytime Sextantids Meteor Shower and Unveiling the Nature of the Phaethon-Geminid Stream Complex
Y. Kipreos, Margaret Campbell-Brown, P. Brown +1
The Daytime Sextantids meteor shower, part of the Phaethon-Geminid Stream Complex (PGC), is closely related to the Geminids, currently the strongest meteor shower visible at the Ea…
Computing optical meteor flux using Global Meteor Network data
Denis Vida, Rhiannon C. Blaauw Erskine, Peter G. Brown +3
Meteor showers and their outbursts are the dominant source of meteoroid impact risk to spacecraft on short time scales. Meteor shower prediction models depend on historical observa…
Triple-frequency meteor radar full wave scattering Measurements and comparison to theory
G. Stober, P. Brown, M. Campbell-Brown +1
Context. Radar scattering from meteor trails depends on several poorly constrained quantities, such as electron line density, q, initial trail radius, r0, and ambipolar diffusion c…
Radar observations of Draconid outbursts]{Radar observations of Draconid outbursts}
M. D. Campbell-Brown, G. Stober, C. Jacobi +3
The Draconid meteor shower shows strong bursts of activity at irregular intervals, with nearly no activity in intervening years. Five outbursts of the Draconid meteor shower were o…
High precision meteor observations with the Canadian Automated Meteor Observatory -- Data reduction pipeline and application to meteoroid mechanical strength measurements
Denis Vida, Peter G. Brown, Margaret Campbell-Brown +3
Context. The mirror tracking system of the Canadian Automated Meteor Observatory (CAMO) can track meteors in real time, providing an effective angular resolution of 1 arc second an…
Modeling the past and future activity of the Halleyids meteor showers
Auriane Egal, Paul Wiegert, Peter G. Brown +2
We present a new numerical model of the eta-Aquariid and Orionid meteor showers. The model investigates the origin, variability and age of the eta-Aquariid and Orionid apparitions…
Activity of the Eta-Aquariid and Orionid meteor showers
A. Egal, P. G. Brown, J. Rendtel +2
We present a multi-instrumental, multidecadal analysis of the activity of the Eta-Aquariid and Orionid meteor showers for the purpose of constraining models of 1P/Halley's meteoroi…
A new method for measuring the meteor mass index: application to the 2018 Draconid meteor shower outburst
Denis Vida, Margaret Campbell-Brown, Peter G. Brown +2
Context. Several authors predicted an outburst of the Draconid meteor shower in 2018, but with an uncertain level of activity. Aims. Optical meteor observations were used to derive…
Estimating trajectories of meteors: an observational Monte Carlo approach -- II. Results
Denis Vida, Peter G. Brown, Margaret Campbell-Brown +2
In the first paper of this series we examined existing methods of optical meteor trajectory estimation and developed a novel method which simultaneously uses both the geometry and…
Estimating trajectories of meteors: an observational Monte Carlo approach -- I. Theory
Denis Vida, Peter S. Gural, Peter G. Brown +2
It has recently been shown by Egal et al. (2017) that some types of existing meteor in-atmosphere trajectory estimation methods may be less accurate than others, particularly when…
Meteoroid Structure and Fragmentation
Margaret D. Campbell-Brown
The physical composition and structure of meteoroids gives us insight into the formation processes of their parent asteroids and comets. The strength of and fundamental grain sizes…
Solar cycle variation in meteor rates
Margaret D. Campbell-Brown
Sixteen years of meteor radar data from the Canadian Meteor Orbit Radar (CMOR) were used to investigate the link between observed meteor rates and both solar and geomagnetic activi…
Properties of meteors with double peaked light curves
Dilini Subasinghe, Margaret Campbell-Brown
Twenty-one meteors showing double peaked light curves were analysed with observations collected with the Canadian Automated Meteor Observatory tracking system. Each event has orbit…
Modeling the measurement accuracy of pre-atmosphere velocities of meteoroids
Denis Vida, Peter G. Brown, Margaret Campbell-Brown
Many existing optical meteor trajectory estimation methods use the approximation that the velocity of the meteor at the beginning of its luminous phase is equivalent to its velocit…
Luminous efficiency estimates of meteors -II. Application to Canadian Automated Meteor Observatory meteor events
Dilini Subasinghe, Margaret Campbell-Brown
Luminous efficiency is a necessary parameter for determining meteoroid mass from optical emission. Despite this importance, it is very poorly known, with previous results varying b…
Generating realistic synthetic meteoroid orbits
Denis Vida, Peter G. Brown, Margaret Campbell-Brown
Context. Generating a synthetic dataset of meteoroid orbits is a crucial step in analysing the probabilities of random grouping of meteoroid orbits in automated meteor shower surve…