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Assessing the influence of astronomical phenomena on the Earth

Published online by Cambridge University Press:  17 July 2015

F. Feng  and
C.A.L. Bailer-Jones
F. Feng
Affiliation:
Max-Planck-Institute for Astronomy, Königstuhl 17, 69117 Heidelberg, Germany
C.A.L. Bailer-Jones
Affiliation:
Max-Planck-Institute for Astronomy, Königstuhl 17, 69117 Heidelberg, Germany
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Abstract

The temporal evolution of the terrestrial impact cratering rate over the past 250 Myr is dominated by a trend increasing towards the present. We find that the Sun's motion through the Galaxy plays at best a minor role in modulating this cratering rate. Moreover, the solar apex motion can explain the non-uniform longitude distribution of the perihelia of long period comets without invoking a solar companion in the outer Oort cloud.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 68: The Milky Way Unravelled by Gaia: GREAT Science from the Gaia Data Releases , 2014 , pp. 195 - 198
Copyright
© EAS, EDP Sciences, 2015

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References

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