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UID:20260518T054334-04-5573XxzMHA@https://astronomia.uc.cl/2jucext1/institu
 toastrofisica/
DTSTAMP:20260518T094334Z
DESCRIPTION:Anne Marie Madigan (University of Colorado)\nCollective Gravity
  in the Outer Solar System\n&nbsp\;\nThere’s something odd going on in our
  solar system. While the planets move on nearly-circular orbits in a well-
 defined plane\, the minor planets beyond Neptune appear to cluster togethe
 r in a highly-inclined\, eccentric\, and tilted structure. Astronomers hav
 e invoked the presence of an additional planet (Planet 9) or even a primor
 dial black hole in explanation. In this talk I will show that these theori
 es may be unnecessary. In analogy with spiral arms and bars in galaxies\, 
 the collective gravity of individually small but collectively massive bodi
 es can create such structures in the outer solar system.\n&nbsp\;\n&nbsp\;
 \n&nbsp\; https://astronomia.uc.cl/2jucext1/institutoastrofisica/en/instit
 uto/coloquios/event/451-collective-gravity-in-the-outer-solar-system-anne-
 marie-madigan
DTSTART:20210406T193000Z
DTEND:20210406T203000Z
LOCATION:Santiago Chile ()
SUMMARY: Collective Gravity in the Outer Solar System - Anne Marie Madigan 
URL:https://astronomia.uc.cl/2jucext1/institutoastrofisica/en/instituto/col
 oquios/event/451-collective-gravity-in-the-outer-solar-system-anne-marie-m
 adigan
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