Revisiting the dark matter—Comet shower connection
نویسندگان
چکیده
We consider whether the observed periodicity of mass extinctions and comet impacts on Earth is consistent with Solar oscillation about Galactic midplane spiral arm crossings. It further interest to determine a hypothetical thin dark disk necessary give right periodicity, such allowed given kinematic other observational constraints Galaxy’s gravitational potential. show that recent bounds, combined data for crossing, can lead required periodicity. Moreover, we find best fit values correctly predict date Chicxulub crater dated 66 My ago.
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ژورنال
عنوان ژورنال: Physics of the Dark Universe
سال: 2022
ISSN: ['2212-6864']
DOI: https://doi.org/10.1016/j.dark.2022.100960