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Observation depuis le sol et analyse des émissions associées aux chutes des météorites sur la lune

Abstract : Meteoroids, coming from small bodies of the solar system, produce luminous phenomena (impact flashes) when they strike the lunar surface. These transient light events are observable from the ground using medium-sized telescopes (typically> 200 mm in diameter) by using high-speed CCD cameras. In this thesis, we describe the instrumental configuration, observation and analysis procedure that was implemented at the Oukaimden Observatory for regular observation of lunar flashes. The first lunar impacts observed and confirmed from an observatory located in Africa and the Arab world are analyzed in this manuscript. We discuss the characteristics of five flashes and the physical parameters attributed to the associated impactors. We present an initial estimate of the impact flux from this first phase of monitoring lunar impacts from our observatories. We also present the development and testing of a strategy to accurately determine the coordinates of impacts observed from Earth. This precision of seleno-localization can be used for future seismological missions that will use meteoroid impacts to explore the lunar interior.
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El Mamoun Ait Moulay Larbi. Observation depuis le sol et analyse des émissions associées aux chutes des météorites sur la lune. Astrophysique [astro-ph]. Université Paul Sabatier - Toulouse III, 2016. Français. ⟨NNT : 2016TOU30395⟩. ⟨tel-02004324⟩

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