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Material arriving at our solar system from the Galaxy may be detected at Earth in the form of meteors ablating in our atmosphere. Here we report on a search for interstellar meteors within the highest-quality events in the Global Meteor…

Earth and Planetary Astrophysics · Physics 2025-03-26 Paul Wiegert , Vanessa Tran , Cole Gregg , Denis Vida , Peter Brown

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 observations to produce accurate forecasts. However, the current…

Earth and Planetary Astrophysics · Physics 2022-07-06 Denis Vida , Rhiannon C. Blaauw Erskine , Peter G. Brown , Jonathon Kambulow , Margaret Campbell-Brown , Michael J. Mazur

Meteor showers occur when streams of meteoroids originating from a common source intersect the Earth. There will be small dissimilarities between the direction of motion of different meteoroids within a stream, and these small differences…

Earth and Planetary Astrophysics · Physics 2022-06-01 Althea V. Moorhead , Tiffany Clements , Denis Vida

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 observed magnitudes preserves this behavior, but is truncated by…

Earth and Planetary Astrophysics · Physics 2026-02-19 Althea V. Moorhead , Peter G. Brown , Margaret D. Campbell-Brown , Michael J. Mazur , Denis Vida

The distribution of meteor magnitudes is usually supposed to be described by power-laws. However, this relationship is not able to model the whole data set, and the parameters are considered to be dependent on the magnitude intervals. We…

Earth and Planetary Astrophysics · Physics 2014-12-30 Alberto S. Betzler , Ernesto P. Borges

The flashes from meteoroid impacts on the Moon are useful in determining the flux of impactors with masses as low as a few tens of grams. A routine monitoring program at NASA's Marshall Space Flight Center has recorded over 300 impacts…

Earth and Planetary Astrophysics · Physics 2014-04-28 Robert Suggs , Danielle Moser , William Cooke , Ronnie Suggs

We present an algorithm developed to measure the fluxes of major meteor showers as observed in NASA's All-Sky Fireball Network cameras. Measurements of fluxes from the All-Sky cameras not only improve the Meteoroid Environment Office's…

Earth and Planetary Astrophysics · Physics 2020-06-03 Steven Ehlert , Rhiannon Blaauw Erskine

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 the population and mass indices, flux, and radiant…

Earth and Planetary Astrophysics · Physics 2020-04-01 Denis Vida , Margaret Campbell-Brown , Peter G. Brown , Auriane Egal , Michael J. Mazur

Meteor physics can provide new clues about the size, structure, and density of cometary disintegration products, establishing a bridge between different research fields. From meteor magnitude data we have estimated the mass distribution of…

Earth and Planetary Astrophysics · Physics 2021-09-30 Josep M. Trigo-Rodríguez , Jürgen Blum

Context. The determination of meteoroid mass indices is central to flux measurements and evolutionary studies of meteoroid populations. However, different authors use different approaches to fit observed data, making results difficult to…

Earth and Planetary Astrophysics · Physics 2016-08-31 Petr Pokorny , Peter G. Brown

Meteor showers on the Earth occur at well known times, and are associated with the decay of comets or other minor bodies whose orbital paths pass close to the Earth's trajectory. On the surface, determining the closest proximity of two…

Space Physics · Physics 2007-05-23 Shane L. Larson

We report high resolution multi-station observations of meteors by the Canadian Automated Meteor Observatory (CAMO) recorded from June 2009 to August 2010. Our survey has a limiting detection magnitude of +5 mag in R-band, equivalent to a…

Earth and Planetary Astrophysics · Physics 2015-05-30 R. Musci , R. J. Weryk , P. Brown , M. D. Campbell-Brown , P. A. Wiegert

As of today, there is no official definition of a meteor cluster. It is usually identified as a large number of meteors sharing a similar radiant and velocity, all occurring within a few seconds. Only eight clusters have been reported so…

Earth and Planetary Astrophysics · Physics 2025-04-08 A. Ashimbekova , J. Vaubaillon , P. Koten

NASA's Meteoroid Environment Office (MEO) produces an annual meteor shower forecast in order to help spacecraft operators assess the risk posed by meteoroid streams. Previously, this forecast focused on the International Space Station and…

Earth and Planetary Astrophysics · Physics 2019-04-16 Althea V. Moorhead , Auriane Egal , Peter G. Brown , Danielle E. Moser , William J. Cooke

We report results of a four-year survey using Electron Multiplied Charged Coupled Device (EMCCD) cameras recording 34761 two-station video meteor events complete to a limiting magnitude of +6. The survey goal was to characterize probable…

Earth and Planetary Astrophysics · Physics 2021-10-04 Tristan Mills , P. G. Brown , M. J. Mazur , D. Vida , Peter S. Gural , Althea V. Moorhead

The evolution of the meteorite flux to the Earth can be studied by determining the terrestrial ages of meteorite collected in hot deserts. We have measured the terrestrial ages of 54 stony meteorites from the El M\'edano area, in the…

We describe how meteors recorded at the Earth can be used to partly reconstruct the meteoroid environments of the planets if a large sample (i.e. millions of orbits at a minimum) is available. The process involves selecting from the…

Earth and Planetary Astrophysics · Physics 2017-07-19 Paul Wiegert , Peter Brown , Petr Pokorny , Karina Lenartowicz , Zbyszek Krzeminski

The forecasting of meteor showers is currently very good at predicting the timing of meteor outbursts, but still needs further work regarding the level of a given shower. Moreover, uncertainties are rarely provided, leaving the end user…

Earth and Planetary Astrophysics · Physics 2017-06-28 Jeremie Vaubaillon

A meteor shower is a luminous phenomenon that takes place by the entry into the Earths atmosphere of a cascade of particles coming from a stream intersected by our planet in its orbit. Here we investigate the possibility of a description of…

Statistical Mechanics · Physics 2007-10-29 Oscar Sotolongo-Costa , R. Gamez , F. Luzon , A. Posadas , Pablo Weigandt Beckmann

It is currently unknown whether solid particles larger than dust from supernova ejecta rain down on Earth at high speeds. We develop a hydrodynamic and radiative model to explore the detectability of $\gtrsim 1 \mathrm{\; mm}$…

Earth and Planetary Astrophysics · Physics 2020-02-06 Amir Siraj , Abraham Loeb
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