The present-day flux of large meteoroids on the lunar surface—A synthesis of models and observational techniques

Oberst, J.; Christou, Apostolos; Suggs, Robert M.; Moser, Danielle E.; Daubar, I. J.; McEwen, A. S.; Burchell, M. J.; Kawamura, Taïchi; Hiesinger, H.; Wünnemann, K.; Wagner, Roland; Robinson, M. S.

doi:10.1016/j.pss.2012.10.005

Cited by 45 publications

(40 citation statements)

References 67 publications

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“…The uncertainty of the estimated magnitude is due to uncertainty about the absolute magnitude of the lunar dark side, which may vary due to geological characteristics (bright highland vs. dark mare region). The estimated magnitude of the flash is consistent with the results of Oberst et al (2012), who observed 115 impact flashes, mostly of magnitude 9-10, in the period of 2006-2009. The light curve is presented in Fig.…”

Section: Resultssupporting

confidence: 89%

“…The monitoring activity during this particular period resulted in many fewer lunar impact flashes than the frequency suggested by Oberst et al (2012).…”

Section: Resultsmentioning

confidence: 79%

“…Routine impact monitoring has been carried out with an automatic system at NASA Marshall Space Flight Center (MSFC) since 2006 Oberst et al 2012). During the first five years they found a total of 240 impacts; on average one flash for every two hours of observation, with dramatically higher rates during meteor showers.…”

Section: Introductionmentioning

confidence: 99%

“…During the first five years they found a total of 240 impacts; on average one flash for every two hours of observation, with dramatically higher rates during meteor showers. Oberst et al (2012) estimated a meteoroid impact flux of 1.34×10…”

Section: Introductionmentioning

confidence: 99%

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Detection of an Impact Flash Candidate on the Moon with an Educational Telescope System

Kim¹,

Kim²,

Yu³

et al. 2015

Journal of Astronomy and Space Sciences

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Section: Resultssupporting

confidence: 89%

“…The monitoring activity during this particular period resulted in many fewer lunar impact flashes than the frequency suggested by Oberst et al (2012).…”

Section: Resultsmentioning

confidence: 79%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Detection of an Impact Flash Candidate on the Moon with an Educational Telescope System

Kim¹,

Kim²,

Yu³

et al. 2015

Journal of Astronomy and Space Sciences

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“…In the last two centuries significant meteor airblast (fireball) events on Earth like Tunguska in 1908 and Chelyabinsk in 2013 have been reported, and impact cratering events have also been witnessed on the Moon. These lunar events were recorded by the Apollo seismic stations (Oberst and Nakamura 1991;Gudkova et al 2011), observations of impact flashes from Earth-based monitoring programmes (Oberst et al 2012;Suggs et al 2014) and identification of newly formed impact craters in high-resolution lunar images (Suggs et al 2014;Robinson et al 2015). These studies have suggested that all very recent impactors to the Earth-Moon system are associated with small (i.e., a few meters wide) 100 s of g to 10 s of kg mass impactors that produce craters in the 10 s of m diameter size range (Oberst et al 2012;Suggs et al 2014).…”

Section: Introductionmentioning

confidence: 99%

The Moon: An Archive of Small Body Migration in the Solar System

et al. 2016

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The Moon is an archive of impact cratering in the Solar System throughout the past 4.5 billion years. It preserves this record better than larger, more complex planets like the Earth, Mars and Venus, which have largely lost their ancient crusts through geological reprocessing and hydrospheric/atmospheric weathering. Identifying the parent bodies of impactors (i.e. asteroid bodies, comets from the Kuiper belt or the Oort Cloud) provides geochemical and chronological constraints for models of Solar System dynamics, helping to better inform our wider understanding of the evolution of the Solar System and the transfer of small bodies between planets. In this review article, we discuss the evidence for populations of impactors delivered to the Moon at different times in the past. We also propose approaches to the identification and characterisation of meteoritic material on the Moon in the context of future lunar exploration efforts.

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Correlating laser‐generated melts with impact‐generated melts: An integrated thermodynamic‐petrologic approach

Hamann

Luther

Ebert

et al. 2016

Geophysical Research Letters

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Planetary collisions in the solar system typically induce melting and vaporization of the impactor and a certain volume of the target. To study the dynamics of quasi‐instantaneous melting and subsequent quenching under postshock P‐T conditions of impact melting, we used continuous‐wave laser irradiation to melt and vaporize sandstone, iron meteorite, and basalt. Using high‐speed imaging, temperature measurements, and petrologic investigations of the irradiation targets, we show that laser‐generated melts exhibit typical characteristics of impact melts (particularly ballistic ejecta). We then calculate the entropy gains of the laser‐generated melts and compare them with the entropy gains associated with the thermodynamic states produced in hypervelocity impacts at various velocities. In conclusion, our experiments extend currently attainable postshock temperatures in impact experiments to ranges commensurate with impacts in the velocity range of 4–20 km s–1 and allow to study timescales and magnitudes of petrogenetic processes in impact melts.

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The present-day flux of large meteoroids on the lunar surface—A synthesis of models and observational techniques

Cited by 45 publications

References 67 publications

Detection of an Impact Flash Candidate on the Moon with an Educational Telescope System

Detection of an Impact Flash Candidate on the Moon with an Educational Telescope System

The Moon: An Archive of Small Body Migration in the Solar System

Correlating laser‐generated melts with impact‐generated melts: An integrated thermodynamic‐petrologic approach

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