Dateline Tunis: PLO R. I. P.?

Williams, Daniel D.

doi:10.2307/1148949

Cited by 5 publications

(6 citation statements)

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“…and again between 250 and 150 years ago Clarke et al, in press). The known chronologies from Corn Creek Dunes (Williams and Orlins, 1963) and Ash Meadows (Mehringer and Warren, 1976;Livingston and Nials, 1990) closely match, and it is possible that this chronoIogy also applies to the region around Pahute and Rainier mesas.…”

mentioning

confidence: 85%

Hunter-gatherer adaptations and environmental change in the southern Great Basin: The evidence from Pahute and Rainier mesas

Pippin¹

1998

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confidence: 85%

Hunter-gatherer adaptations and environmental change in the southern Great Basin: The evidence from Pahute and Rainier mesas

Pippin¹

1998

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“…As already mentioned, collisions between asteroids can generate a meteoroid ejection. However, Williams (1993) claimed that streams formed in this way would contain far less mass and be far more diffuse than those from a cometary origin. Comets eject meteoroids at every perihelion passage and so can produce a much stronger stream.…”

Section: Introductionmentioning

confidence: 99%

Near-Earth asteroids among the Scorpiids meteoroid complex

Бабаджанов

Williams

Кохирова

2013

A&A

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A group of near-Earth asteroids (NEAs) that moved on similar orbits to each other and where the orbits could be classed as cometary were identified by searching the "Near-Earth Objects Dynamic Site" database. Six NEAs were identified, 2003HP2, 2006WX29, 2007VH189, 2007WT3, 2007WY3, and 2008UM1. The orbits were integrated back over one complete cycle in the variation of the argument of perihelion to identify times when their nodal distance was 1 AU. Theoretical meteoroids were assumed to have been released at these times on an orbit identical to those of the NEAs. The characteristics of a meteor shower that would be formed when these meteoroids hit the Earth's atmosphere were calculated. It was found that the showers produced from all six NEAs were identical and could be recognized as the nighttime χ-and δ-Scorpiids and the daytime β-and σ-Librids, the latter two being named by us. It was also found that the orbital evolution of the Scorpiids was almost identical to the orbital evolution of the six NEAs. The similarity of the orbits, the nature of the orbit as cometary and the association of the Scorpiid meteoroid stream lead us to suggest that the origin of the whole complex was the fragmentation of some unknown comet several millennia ago.

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“…This subject was reviewed by Obrubov (1999). Williams (1993) claimed that streams formed in this way would contain far less mass and be far more diffuse than those from cometary origin. There are a number of NEOs that have similar orbits to meteoroid streams.…”

Section: Introductionmentioning

confidence: 99%

Near-Earth asteroids among the Iota Aquariids meteoroid stream

Бабаджанов¹,

Williams²,

Кохирова³

2009

A&A

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It is shown that the near-Earth asteroids 2002JS2, 2002PD11, and 2003MT9 have very similar orbits to each other and probably a common origin. We investigate the orbital evolution of these asteroids under the perturbing action of the planets and calculated the theoretical shower parameters for any meteor shower that may be associated with these asteroids. Finally we searched the existing catalogues of meteor showers and fireballs, and found that activity has been observed corresponding to each of the theoretically predicted shower. We conclude that this asteroid-meteoroid complex is the result of a cometary break-up.

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Dateline Tunis: PLO R. I. P.?

Cited by 5 publications

References 0 publications

Hunter-gatherer adaptations and environmental change in the southern Great Basin: The evidence from Pahute and Rainier mesas

Hunter-gatherer adaptations and environmental change in the southern Great Basin: The evidence from Pahute and Rainier mesas

Near-Earth asteroids among the Scorpiids meteoroid complex

Near-Earth asteroids among the Iota Aquariids meteoroid stream

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