Journal article Open Access

A possible meteor shower on the Moon

Hunten, D. M.; Kozlowski, R. W. H.; Sprague, A. L.

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{
"DOI": "10.1029/91gl02543",
"author": [
{
"family": "Hunten, D. M."
},
{
"family": "Kozlowski, R. W. H."
},
{
"family": "Sprague, A. L."
}
],
"issued": {
"date-parts": [
[
1991,
11,
1
]
]
},
"abstract": "Over the 3\u2010day period from 12 to 14 October, 1990, the sodium abundance in the lunar atmosphere at 80\u00b0 South increased by 60%, while interspersed measurements at the equator showed no substantial change. The source is suggested to be an unknown meteor shower with a radiant near the south ecliptic pole. A low relative velocity of \u223c20 km/sec, combined with small particle masses, would keep the shower below the detectability threshold of radar. The stream could evolve from a reasonable asteroidal or cometary orbit with perihelion somewhat greater than 1 astronomical unit (AU) and a major axis of a few AU. The short residence time of lunar sodium makes it much more favorable than the terrestrial sodium layer for detection of such an event.",
"title": "A possible meteor shower on the Moon",
"type": "article-journal",
"id": "1231305"
}
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