Results 21 to 30 of about 527 (254)

Modern radar techniques and the hazard of meteoroids to space platforms

open access: yesAnnals of Geophysics, 1998
Modern radar techniques, and in particular ground based radars, are a powerful tool to observe space objects (natural meteoroids and artificial space debris) on account of their all-weather and day-and-night performance.
G. Cevolani
doaj   +1 more source

Russian meteorite of the Bronze Age (rock record) [PDF]

open access: yesArchaeoastronomy and Ancient Technologies, 2014
This paper presents the results of the study of petroglyphs found in the quartzite grotto near the Skelnovsky small village in the Northern Black Sea in the South of Russia. The aim of the study was the analysis and interpretation of the Early Bronze Age
Vodolazhskaya, L.N., Nevsky, M.Yu.
doaj   +1 more source

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

Small iron meteoroids [PDF]

open access: yesAstronomy & Astrophysics, 2019
Context.A significant fraction of small meteors are produced by iron meteoroids. Their origin and the interaction with the atmosphere have not been well explained up to now.Aims.The goals of the study are to observe faint, slow, low altitude meteors, to identify candidates for iron meteoroids among them, to model their ablation and light curves, and to
David Čapek   +5 more
openaire   +1 more source

Geomagnetic effect of the Bering Sea meteoroid

open access: yesRussian Journal of Earth Sciences, 2020
Possibilities of studies of the geomagnetic effects produced by the interaction of a cosmic bodies with the magnetosphere-ionosphere-atmosphere system are very limited due to extremely small number of examined events.
Gavrilov B G   +3 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 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

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

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

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

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