Results 21 to 30 of about 2,637 (244)

Modeling the flight of meteoroid fragments with accounting for rotation [PDF]

open access: yesКомпьютерные исследования и моделирование, 2019
An algorithm for solving the conjugation of aerodynamic and ballistic problems, which is based on the method of modeling with the help of a grid system, has been complemented by a numerical mechanism that allows to take into account the relative movement
Vladislav Tarasovich Lukashenko   +1 more
doaj   +1 more source

Meteoroid structure and fragmentation [PDF]

open access: yesPlanetary and Space Science, 2019
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 in meteoroids tell us about the environment in which small solar system bodies formed, and the processes which built up these basic planetary building blocks.
openaire   +2 more sources

Meteoritic influence on sodium and potassium abundance in the lunar exosphere measured by LADEE

open access: yesGeophysical Research Letters, 2016
The Lunar Atmosphere and Dust Environment Explorer (LADEE) orbited the Moon for approximately 6 months, taking data with the Lunar Dust Experiment (LDEX), Ultraviolet‐Visible Spectrometer (UVS), and Neutral Mass Spectrometer (NMS).
Jamey R. Szalay   +3 more
doaj   +1 more source

The Spectrum and Orbit of a Fireball Producing Mesospheric Irregularity and Implications for Meteor Mass Deposition

open access: yesThe Astrophysical Journal, 2023
The physical properties of meteoroids producing meteor plasma non-field-aligned irregularities (NFAI) in the Earth’s atmosphere are poorly known. Here we report a complete picture of a fireball and mesospheric NFAI that it produced for the first time ...
Guozhu Li   +9 more
doaj   +1 more source

Formation, Structure, and Detectability of the Geminids Meteoroid Stream

open access: yesThe Planetary Science Journal, 2023
The Geminids meteoroid stream produces one of the most intense meteor showers at Earth. It is an unusual stream in that its parent body is understood to be an asteroid, (3200) Phaethon, unlike most streams, which are formed via ongoing cometary activity.
W. Z. Cukier, J. R. Szalay
doaj   +1 more source

The Sporadic Meteoroid Complex and Spacecraft Risk [PDF]

open access: yes, 2009
The meteoroid population in near-Earth space is typically broken down into two components: shower meteoroids which orbit in collimated streams, and the older sporadic meteoroids which have been dispersed into a much broader uncollimated distribution of ...
Paul Wiegert   +4 more
core   +1 more source

A meteor head echo analysis algorithm for the lower VHF band [PDF]

open access: yesAnnales Geophysicae, 2012
We have developed an automated analysis scheme for meteor head echo observations by the 46.5 MHz Middle and Upper atmosphere (MU) radar near Shigaraki, Japan (34.85° N, 136.10° E).
J. Kero   +6 more
doaj   +1 more source

Meteoroid Engineering Model (MEM): A Meteoroid Model For The Inner Solar System [PDF]

open access: yesEarth, Moon, and Planets, 2004
In an attempt to overcome some of the deficiencies of existing meteoroid models, NASA’s Space Environments and Effects (SEE) Program sponsored a 3 year research effort at the University of Western Ontario. The resulting understanding of the sporadic meteoroid environment – particularly the nature and distribution of the sporadic sources – were then ...
H. Mcnamara   +5 more
openaire   +1 more source

RADIANTS AND ORBITAL DISTRIBUTION OF TV FAINT SPORADIC METEORS

open access: yesOdessa Astronomical Publications, 2018
Double station meteor observation using TV CCD unintensified techniques was started in 2013 in Nikolaev astronomical observatory (RI NAO). During observational campaign in 2013-2016 catalog containing 1055 meteoroid orbits has been obtained.
M. O. Kulichenko, A. V. Shulga
doaj   +1 more source

On the role of collisions with meteoroids in splitting and acceleration of heliocentric velocity of comets

open access: yesOpen Astronomy, 2020
The hypothesis on the role of the meteoroid impacts in the comet nuclei splitting as well as acceleration of their heliocentric velocity are considered.
Guliyev Ayyub, Guliyev Rustam
doaj   +1 more source

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