Zobrazeno 1 - 10 of 26 pro vyhledávání: '"Line Drube"'
1
Akademický článek
The ap Prediction Tool Implemented by the A.Ne.Mo.S./NKUA Group
Autor: Helen Mavromichalaki, Maria Livada, Argyris Stassinakis, Maria Gerontidou, Maria-Christina Papailiou, Line Drube, Aikaterini Karmi
Publikováno v: Atmosphere, Vol 15, Iss 9, p 1073 (2024)
A novel tool utilizing machine learning techniques was designed to forecast ap index values for the next three consecutive days (24 values). The tool employs time series data from the 3 h ap index of solar cycles 23 and 24 to train the Long Short-Ter
Externí odkaz: https://doaj.org/article/5f8e08383c72464fb9e738829128907b
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2
Akademický článek
Unusual Forbush Decreases and Geomagnetic Storms on 24 March, 2024 and 11 May, 2024
Autor: Helen Mavromichalaki, Maria-Christina Papailiou, Maria Livada, Maria Gerontidou, Pavlos Paschalis, Argyris Stassinakis, Maria Abunina, Nataly Shlyk, Artem Abunin, Anatoly Belov, Victor Yanke, Norma Crosby, Mark Dierckxsens, Line Drube
Publikováno v: Atmosphere, Vol 15, Iss 9, p 1033 (2024)
As the current solar cycle 25 progresses and moves towards solar maxima, solar activity is increasing and extreme space weather events are taking place. Two severe geomagnetic storms accompanied by two large Forbush decreases in galactic cosmic ray i
Externí odkaz: https://doaj.org/article/4e7ec271e68745ee8fc150e7bf5ee5f7
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3
International coordination on planetary defence: The work of the IAWN and the SMPAG
Autor: Lindley Johnson, Alissa Haddaji, Detlef Koschny, Rob Landis, Line Drube, Romana Kofler, Gerhard Drolshagen
Publikováno v: Acta Astronautica. 156:409-415
Space capabilities play a crucial role in ensuring human security. One of the threats coming from space is the possible damage to our assets by an asteroid or comet impact. As demonstrated by the object entering the Earth's atmosphere over Chelyabins
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::159ffd65524ab775228f13a409c14c0d
https://doi.org/10.1016/j.actaastro.2018.07.023
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4
Asteroid Thermal Inertia Estimates from Remote Infrared Observations: The Effects of Surface Roughness and Rotation Rate
Autor: Line Drube, Alan W. Harris
The thermal inertia of an asteroid's surface can provide insight into regolith properties, such as the presence of a layer of fine dust, the density and thermal conductivity of a rocky surface, and, together with other observational data, mineralogy.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81c5f65f9ab69d57279e16cdf3295151
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6
The NEOTωIST mission (Near-Earth Object Transfer of angular momentum spin test)
Autor: Alan W. Harris, Siegfried Eggl, Patrick Michel, Juan L. Cano, Albert Falke, Stephen R. Schwartz, K. Engel, Javier Martín Ávila, Line Drube, Ulrich Johann
Publikováno v: Acta Astronautica
Acta Astronautica, 2016, 127, pp.103-111. ⟨10.1016/j.actaastro.2016.05.009⟩
Acta Astronautica, Elsevier, 2016, 127, pp.103-111. ⟨10.1016/j.actaastro.2016.05.009⟩
We present a concept for a kinetic impactor demonstration mission, which intends to change the spin rate of a previously-visited asteroid, in this case 25143 Itokawa. The mission would determine the efficiency of momentum transfer during an impact, a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::722720115027f8994102959402ac20f8
https://hal.science/hal-02430743
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8
THE NEOSHIELD PROJECT FOR NEAR-EARTH OBJECT IMPACT THREAT MITIGATION
Autor: Line Drube, Alan W. Harris
Publikováno v: International Seminars on Nuclear War and Planetary Emergencies 48th Session.
Every day Earth is hit by around 100 tonnes of cosmic material, most of it comes in the form of dust or small rocks, which burn up as meteors in the atmosphere. Sometimes, however, larger objects, asteroids or comets, enter the Earth’s atmosphere a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f80cd4b744584208792f730f9f5f8a8
https://doi.org/10.1142/9789813148994_0043
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9
Thermal Tomography of Asteroid Surface Structure
Autor: Alan W. Harris, Line Drube
Publikováno v: The Astrophysical Journal
Knowledge of the surface thermal inertia of an asteroid can provide insight into surface structure: porous material has a lower thermal inertia than rock. We develop a means to estimate thermal inertia values of asteroids and use it to show that ther
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90c7d015945ff4ebfe6ec825c3c37df5
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10
Dealing with uncertainties in asteroid deflection demonstration missions: NEOTomegaIST
Autor: Line Drube, Patrick Michel, Siegfried Eggl, Javier Martín Ávila, Ulrich Johann, Daniel Hestroffer, Albert Falke, Alan W. Harris, Juan L. Cano, Stephen R. Schwartz, K. Engel
Publikováno v: IAU Symposium
Asteroids: New Observations, New Models, IAU Symposium 318
Asteroids: New Observations, New Models, IAU Symposium 318, Aug 2015, Honolulu, United States, United States. pp.231-238, ⟨10.1017/S1743921315008698⟩
Proceedings of the International Astronomical Union
Deflection missions to near-Earth asteroids will encounter non-negligible uncertainties in the physical and orbital parameters of the target object. In order to reliably assess future impact threat mitigation operations such uncertainties have to be
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f6a07533fa357c639f9df2b11a62ca4
https://hal.science/hal-03734369
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