The Canterbury Swarm and the Taurids

Posted: December 10, 2020 by tallbloke in Astrophysics, Celestial Mechanics, moon


John Michael Godier: An exploration of the concept of the Canterbury meteor swarm and its links to the annual Taurid meteor shower and how these sometimes produce very large impacts on the moon and earth.

Papers:
“WAS THE FORMATION OF A 20-KM-DIAMETER IMPACT CRATER ON THE MOON OBSERVED ON JUNE 18, 1178?”, J. Hartung, 1976 http://onlinelibrary.wiley.com/doi/10…

“The Flux of Kilogram-sized Meteoroids from Lunar Impact Monitoring” Suggs et al, 2014 https://arxiv.org/ftp/arxiv/papers/14…
Also: https://www.nasa.gov/exploration/home… “The Canterbury Swarm: Ancient and Modern Observations of a New Feature in the Solar System”, Bulletin of the American Astronomical Society (16), 476, Brecher, 1984

“The structure and evolution of the Taurid Complex” (1991). Mon. Not. R. astr. Soc. 251, 632-648, with D. I. Steel and D. J. Asher. Napier and Steele: http://news.nationalgeographic.com/ne… https://academic.oup.com/mnras/articl..

Comments
  1. tallbloke says:

    Remembering also the excellent discussion we had here on the Talkshop back in 2011 concerning the possibility the Taurids may have caused the Younger Dryas Cooling.
    https://tallbloke.wordpress.com/2011/06/24/comet-storm-a-hypothesis-explaining-megafauna-extinction-and-the-younger-dryas/
    Well worth revisiting.

  2. oldmanK says:

    Flitting around on the links this one from yr 2007 looked interesting. Because the dates today are established markers. Link: https://www.sott.net/article/134637-The-Younger-Dryas-Impact-Event-and-the-Cycles-of-Cosmic-Catastrophes-Climate-Scientists-Awakening

    But the YD cooling, and the abrupt change, is no different from previous cycles; see https://upload.wikimedia.org/wikipedia/commons/1/1e/EPICA_delta_D_plot.svg

    A very good read was posted here https://wattsupwiththat.com/2017/08/04/paleoclimate-cycles-are-key-analogs-for-present-day-holocene-warm-period/ but the figures are no longer there (but they are here https://www.linkedin.com/pulse/predictability-past-warm-periods-renee-hannon/ )

    But more fundamental is the saw-tooth shape of the last 400k yrs. That is a sign of a process. What drives that process, and the various forcings that control the somewhat changing period between abrupt major triggers at saw-tooth bottom- which the R Hannon link shows so well-, is still very much unknown.

    R Hannon pin-points the 8k2 event. The first link above shows the dates of other events in the Holocene.

  3. oldbrew says:

    This study prefers the solar activity explanation.

    Radiocarbon data from the Most Ancient Dryas to the Younger Dryas:
    cosmic rays and climate
    — I V Kudryavtsev and V A Dergachev 2019

    4. Conclusion

    The radiocarbon production rate and the heliospheric modulation potential were reconstructed during
    the time interval 12000-8500BC. The reconstruction took into account the climatic variations. The
    periods of extremely high radiocarbon production rate are located. These periods are 11765 (11780),
    11100 (11120), 10700, 10425 (10420), 9245, 9150 BC. The periods of very high solar activity are
    10940, 10200, 9565 BC. It is possible also that the time intervals close to 9700, 9200-9000 BC were
    the periods of grand minima of solar activity.

    ‘https://iopscience.iop.org/article/10.1088/1742-6596/1400/2/022036/pdf’

  4. E.M.Smith says:

    The NASA link takes me to YouTube…

  5. E.M.Smith says:

    So does the Arvix link…

  6. tallbloke says:

    Thanks EM, that’ll teach me to check links when copy/pasting from YT.
    Arxiv link should be https://arxiv.org/ftp/arxiv/papers/1404/1404.6458.pdf
    NASA link should be https://www.nasa.gov/exploration/home/Lunar_strike.html

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