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Littérature scientifique sur le sujet « Meteoroid stream »

Auteur : Grafiati

Publié le 8 juin 2024

Mis à jour le 31 juillet 2025

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Articles de revues sur le sujet "Meteoroid stream"

Wiliams, I. P. "The Dynamics of Meteoroid Streams." Symposium - International Astronomical Union 152 (1992): 299–313. http://dx.doi.org/10.1017/s0074180900091312.

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Meteor showers are seen at regular and frequent intervals on Earth. They are caused by meteoroids (that is small dust grains) in a coherent stream, all moving on similar heliocentric orbits, burning up on encountering the atmosphere of the Earth. Such streams contain 1012 or more meteoroids, with the mass of the visible meteoroids ranging up to about 1 g. The main evolutionary effect on such streams is gravitational perturbations by the planets. Though grain-grain collision may be catastrophic for the two grains involved, it has no effect on the remainder of the stream, other than the fact tha

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Kokhirova, G. I., and P. B. Babadzhanov. "Current Knowledge of Objects Approaching the Earth." Астрономический вестник 57, no. 5 (2023): 458–78. http://dx.doi.org/10.31857/s0320930x23050031.

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Modern ideas about objects approaching the Earth are discussed. This population includes near-Earth asteroids (NEAs), including potentially hazardous asteroids, short-period comets, meteoroid streams, and large sporadic meteoroids. An overview is given of the currently available information on the dynamic and physical properties of NEAs and comets. Almost 5% of the currently known NEAs are extinct cometary nuclei or their fragments. Being outwardly similar with true asteroids, they differ markedly in their dynamic and physical properties. In order to distinguish between these groups of objects

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Cukier, W. Z., and J. R. Szalay. "Formation, Structure, and Detectability of the Geminids Meteoroid Stream." Planetary Science Journal 4, no. 6 (2023): 109. http://dx.doi.org/10.3847/psj/acd538.

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Abstract 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. Until recently, our primary understanding of this stream came from Earth-based measurements of the Geminids meteor shower. However, the Parker Solar Probe (PSP) spacecraft has transited near the core of the stream close to its perihelion and provides a new platform to better understand this unique stream. Here, we create a dynamical m

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Ryabova, Galina O. "Averaged changes in the orbital elements of meteoroids due to Yarkovsky-Radzievskij force." Proceedings of the International Astronomical Union 9, S310 (2014): 160–61. http://dx.doi.org/10.1017/s1743921314008114.

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AbstractYarkovsky-Radzievskij effect exceeds the Poynting-Robertson effect in the perturbing action on particles larger than 100 μm. We obtained formulae for averaged changes in a meteoroid's Keplerian orbital elements and used them to estimate dispersion in the Geminid meteoroid stream. It was found that dispersion in semi-major axis of the model shower increased nearly three times on condition that meteoroids rotation is fast, and the rotation axis is stable.

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Rudawska, Regina, and Tadeusz J. Jopek. "Study of meteoroid stream identification methods." Proceedings of the International Astronomical Union 5, S263 (2009): 253–56. http://dx.doi.org/10.1017/s1743921310001870.

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AbstractWe have tested the reliability of various meteoroid streams identification methods. We used a numerically generated set of meteoroid orbits (a stream component and a sporadic background) that were searched for streams using several methods.

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Moorhead, Althea V., Tiffany D. Clements, and Denis Vida. "Realistic gravitational focusing of meteoroid streams." Monthly Notices of the Royal Astronomical Society 494, no. 2 (2020): 2982–94. http://dx.doi.org/10.1093/mnras/staa719.

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ABSTRACT The number density and flux of a meteoroid stream is enhanced near a massive body due to the phenomenon known as gravitational focusing. The greatest enhancement occurs directly opposite the massive body from the stream radiant: as an observer approaches this location, the degree of focusing is unbound for a perfectly collimated stream. However, real meteoroid streams exhibit some dispersion in radiant and speed that will act to eliminate this singularity. In this paper, we derive an analytic approximation for this smoothing that can be used in meteoroid environment models and is base

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Babadzhanov, P. B., and Yu V. Obrubov. "Dynamics and Spatial Shape of Short-Period Meteoroid Streams." Highlights of Astronomy 8 (1989): 287–93. http://dx.doi.org/10.1017/s1539299600007905.

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AbstractAt the early stage of evolution the meteoroid streams may be considered as elliptical rings of relatively small thickness. The influence of planetary perturbations can essentially increase the stream width and its thickness. As a result one stream may produce several couples of meteor showers active in different seasons of the year. 22 short-period meteoroid streams under review may theoretically produce 104 meteor showers. The existence of 67 is confirmed by observations.

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Wu, Zidian, and Iwan P. Williams. "The Quadrantid Stream, Chaos or Not?" Symposium - International Astronomical Union 152 (1992): 329–32. http://dx.doi.org/10.1017/s0074180900091348.

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The Quadrantid stream covers a region of space which contains many strong resonances and commensurabilities with the Jovian orbit. We have numerically integrated the orbital evolution of over one hundred actual meteoroids backwards to BC 5000. The evolution is quit complex, but most of the meteoroids are quite well behaved with rapid but smooth changes in the orbital elements. One meteoroid however shows sharp sudden changes in its orbital parameters and these changes are generally indicative of the presence of chaos.

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Froeschlé, CL, T. J. Jopek, and G. B. Valsecchi. "The Use of Geocentric Variables to Search for Meteoroid Streams and Their Parents." International Astronomical Union Colloquium 172 (1999): 55–64. http://dx.doi.org/10.1017/s0252921100072419.

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AbstractA set of geocentric variables suitable for the identification of meteoroid streams has been recently proposed and successfully applied to photographic meteor orbits. We describe these variables and the secular invariance of some of them, and discuss their use to improve the search for meteoroid stream parents.

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Harris, Nathan W. "The Formation and Evolution of the Perseid Meteoroid Stream." International Astronomical Union Colloquium 150 (1996): 101–4. http://dx.doi.org/10.1017/s0252921100501341.

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AbstractThe orbital evolution of two modelled ‘Perseid’ meteoroid streams is investigated using direct numerical integration techniques. We conclude that, in the absence of significant meteoroid velocity determination errors, the observed meteoroid orbital semi-major axis distribution is a direct consequence of the cometary ejection process and not due to subsequent orbital evolution. A high ejection-velocity (~ 0.6 km s-1) model stream succeeds in reproducing the observations. Conclusions are made concerning how the orbital stability of Earth-orbit-intersecting Perseid metecroids varies with

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Thèses sur le sujet "Meteoroid stream"

Courtot, Ariane. "Réviser les pluies de météores : caractérisation du chaos dans les courants de météoroïdes." Electronic Thesis or Diss., Université Paris sciences et lettres, 2023. http://www.theses.fr/2023UPSLO007.

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Un courant de météoroïdes est formé lorsque des météoroïdes sont éjectés par un corps parent (astéroïde ou comète). Lorsque ce courant rencontre la Terre, une pluie de météores apparaît. Ce lien entre météores observés et corps parent est difficile à établir, à cause notamment de la dynamique complexe des météoroïdes (forces non-gravitationelles -FNGs- et rencontres proches). Je définis donc un "groupe de météores" comme un ensemble de météores aux caractéristiques proches, mais dont le lien avec le corps parent est incertain. J'ai passé en revue les méthodes utilisées pour former des groupes:

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Sekhar, A. "Evolution of Halley-type comets and meteoroid streams." Thesis, Queen's University Belfast, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.676720.

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The overall objective of the thesis is to understand the long term orbital dynamics of comets and meteoroid streams. The initial idea focused mainly on detailed analysis of Jovian resonances in Orionids and Leonids. Special emphasis was given to study their influences in causing meteoroutbursts and storms on Earth. The theoretical simulations matched with observational records to a very good degree. This work led to the curious question as to whether any resonance mechanism could be driven due to Saturn's gravity. Subsequent analysis showed that Saturn's influences can also become vital when t

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Brown, Peter Gordon. "Evolution of two periodic meteoroid streams, the perseids and leonids." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0009/NQ40247.pdf.

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Harris, Nathan W. "Dust ejection from cometary nuclei and the formation of meteoroid streams." Thesis, University of Sheffield, 1994. http://etheses.whiterose.ac.uk/5968/.

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Costa, Tarcísio Oliveira da. "EVENTOS DE PRECIPITAÇÃO EXTREMA ASSOCIADOS ÀS INUNDAÇÕES NA ÁREA URBANA DE BRAGANÇA/PA." Universidade Federal de Santa Maria, 2014. http://repositorio.ufsm.br/handle/1/9431.

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The study of urban climate has a great importance in regard to the understanding of the human-nature relationship and the interaction between the local climate and the city. This expectation motivated this study on the Urban Climate in the city of Bragança, Pará State, a city that has undergone urban impacts from the rains that cause floods and flooding that hit several areas of the city, especially along the course from the Cereja stream, that is cutting the urban mesh. The Floods are one of the most serious problems which affects the cities when there is an occurrence of extreme precipitatio

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Livres sur le sujet "Meteoroid stream"

Ryabova, Galina O. Mathematical Modelling of Meteoroid Streams. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-51510-2.

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The 2300 BC Event: Vol 1 Archaeology and Geophysics & The Meteoroid Stream. Outskirts Press, 2006.

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Ryabova, Galina O. Mathematical Modelling of Meteoroid Streams. Springer, 2020.

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Chapitres de livres sur le sujet "Meteoroid stream"

Williams, I. P. "Meteoroid Stream Dynamics." In From Newton to Chaos. Springer US, 1995. http://dx.doi.org/10.1007/978-1-4899-1085-1_18.

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Cevolani, Giordano, Giuseppe Pupillo, Anton Hajduk, and Vladimir Porubčan. "Observations of the Leonid Meteoroid Stream by a Multistation FS Radio System." In Leonid Storm Research. Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-017-2071-7_19.

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Steel, Duncan. "Meteoroid Streams." In Asteroids, Comets, Meteors 1993. Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-1148-5_9.

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Williams, I. P. "The Dynamics of Meteoroid Streams." In Dynamics of Natural and Artificial Celestial Bodies. Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-017-1327-6_12.

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Williams, I. P. "Meteoroid Streams and Meteor Showers." In The Dynamics of Small Bodies in the Solar System. Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-015-9221-5_17.

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Beech, Martin. "Characterizing the Annual Meteoroid Streams." In Protection of Space Materials from the Space Environment. Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-010-0714-6_24.

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Williams, I. P., and Zidian Wu. "The Dynamics of Meteoroid Streams." In Predictability, Stability, and Chaos in N-Body Dynamical Systems. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4684-5997-5_17.

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Williams, Iwan P. "Meteors, Meteor Showers and Meteoroid Streams." In Solar and Extra-Solar Planetary Systems. Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/3-540-44807-1_14.

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Babadzhanov, P. B., and Yu V. Obrubov. "Evolution Of Short-Period Meteoroid Streams." In Dynamics and Evolution of Minor Bodies with Galactic and Geological Implications. Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2743-1_8.

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Babadzhanov, P. B., and Yu V. Obrubov. "Dynamics and Spatial Shape of Short-Period Meteoroid Streams." In Highlights of Astronomy. Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-0977-9_44.

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Actes de conférences sur le sujet "Meteoroid stream"

Zolotarev, R. V., and B. M. Shustov. "On the dynamics of meteoroid streams originating from NEA collisions." In 51-st All-Russian with international participation student scientific conference "Physics of Space". Ural University Press, 2024. http://dx.doi.org/10.15826/b978-5-7996-3848-1.48.

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Aspects of the formation and evolution of meteoroid streams formed during collisions of NEAs with objects of the Main Asteroid Belt are studied. This collision scenario is considered more probable, since many NEAs, due to their origin, cross the Main Belt region, in which the density of objects is much higher compared to the inner regions of the Solar System. The meteoroid streams originating from collisions have a number of differences from streams of cometary origin, both in terms of the formation of the stream and during further dynamic evolution.

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Shaidulin, V. Sh, D. V. Milanov, A. S. Rusakov, and A. V. Veselova. "Determination of themean orbit for meteoroid streams." In 51-st All-Russian with international participation student scientific conference "Physics of Space". Ural University Press, 2024. http://dx.doi.org/10.15826/b978-5-7996-3848-1.08.

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This paper presents a mathematical apparatus for calculating the average orbit of a family of bodies using Kholshevnikov metrics. Based on it, a software package has been developed for studying the evolution of meteor showers. As an example, a study was conducted of the Geminid meteor shower, which is one of the most intense today. The results for samples from different years show the same results, despite the fact that the samples do not overlap. Among other things, we calculated the age of the Geminids stream.

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Stabroth, Sebastian, Michael Oswald, Carsten Wiedemann, Peter Vörsmann, and Heiner Klinkrad. "Modelling the Meteoroid Stream Flux onto Targets in Earth Orbits." In AIAA/AAS Astrodynamics Specialist Conference and Exhibit. American Institute of Aeronautics and Astronautics, 2006. http://dx.doi.org/10.2514/6.2006-6516.

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Granitskii, Lev V., and A. N. Borisevich. "Influence of the meteoric stream on weather conditions: preliminary consideration." In 7th International Symposium on Atmospheric and Ocean Optics, edited by Gennadii G. Matvienko and Mikhail V. Panchenko. SPIE, 2000. http://dx.doi.org/10.1117/12.411998.

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Shchepalova, A. "Metrics in The Space of Keplerian Orbits and in the Family of Its Quotient Spaces." In ASTRONOMY AT THE EPOCH OF MULTIMESSENGER STUDIES. Proceedings of the VAK-2021 conference, Aug 23–28, 2021. Crossref, 2022. http://dx.doi.org/10.51194/vak2021.2022.1.1.031.

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The distance functions on the set of Keplerian orbits play an important role in solving the problems of searching for theparent bodies of meteoroid streams. A special kind of function is the distances in the quotient spaces of orbits. Three metricsof this type were developed earlier. These metrics allow disregarding the longitude of the ascending node or the argumentof pericenter, or both. Recently, we introduced one more quotient space, where two orbits are considered to be identical ifthey diﬀer only in their longitudes of nodes and arguments of pericenters, but have the same sum of these el

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Rapports d'organisations sur le sujet "Meteoroid stream"

Kidder, J. A., M. B. McClenaghan, M I Leybourne, et al. Geochemical data for stream and groundwaters around the Casino Cu-Au-Mo porphyry deposit, Yukon (NTS 115 J/10 and 115 J/15). Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/328862.

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This open file reports geochemical data for stream and groundwater samples collected around the Casino porphyry Cu-Au-Mo deposit, one of the largest and highest-grade deposits of its kind in Canada. The calc-alkaline porphyry is hosted in a Late Cretaceous quartz monzonite and associated breccias in the unglaciated region of west central Yukon. Water chemistry around the deposit was investigated because: (i) the deposit has not yet been disturbed by mining; (ii) the deposit was known to have metal-rich waters in local streams; and (iii) the deposit has atypically preserved ore zones. Stream wa

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Ray, Laura, Madeleine Jordan, Steven Arcone, et al. Velocity field in the McMurdo shear zone from annual ground penetrating radar imaging and crevasse matching. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/42623.

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The McMurdo shear zone (MSZ) is strip of heavily crevassed ice oriented in the south-north direction and moving northward. Previous airborne surveys revealed a chaotic crevasse structure superimposed on a set of expected crevasse orientations at 45 degrees to the south-north flow (due to shear stress mechanisms). The dynamics that produced this chaotic structure are poorly understood. Our purpose is to present our field methodology and provide field data that will enable validation of models of the MSZ evolution, and here, we present a method for deriving a local velocity field from ground pen

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