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A large lunar impact blast on September 11th 2013

 

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Opened Access A large lunar impact blast on September 11th 2013
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Author: Ortiz, José L.
Morales Palomino, Nicolás
Cabrera Caño, Jesús María
Madiedo Gil, José María
Department: Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear
Date: 2014
Published in: Monthly Notices of the Royal Astronomical Society, 439 (3), 2364-2369.
Document type: Article
Abstract: On 2013 September 11 at 20h07m28 .s 68 ± 0 .s 01 UTC, two telescopes operated in the framework of our lunar impact flashes monitoring project recorded an extraordinary flash produced by the impact on the Moon of a large meteoroid at selenographic coordinates 17$ $_{.}^{\circ}$$2 ± 0$ $_{.}^{\circ}$$2 S, 20$ $_{.}^{\circ}$$5 ± 0$ $_{.}^{\circ}$$2 W. The peak brightness of this flash reached 2.9 ± 0.2 mag in V and it lasted over 8 s. The estimated energy released during the impact of the meteoroid was 15.6 ± 2.5 tons of TNT under the assumption of a luminous efficiency of 0.002. This event, which is the longest and brightest confirmed impact flash recorded on the Moon thus far, is analysed here. The likely origin of the impactor is discussed. Considerations in relation to the impact flux on Earth are also made.
Cite: Ortiz, J.L., Morales Palomino, N., Cabrera Caño, J.M. y Madiedo Gil, J.M. (2014). A large lunar impact blast on September 11th 2013. Monthly Notices of the Royal Astronomical Society, 439 (3), 2364-2369.
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URI: http://hdl.handle.net/11441/65013

DOI: 10.1093/mnras/stu083

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