Hubble Space Telescope Search for Activity in High Perihelion Objects

14 Mar 2020 Li Jing Jewitt David Mutchler Max Agarwal Jessica Weaver Harold

Solar system objects with perihelia beyond the orbit of Jupiter ($q >$ 5 AU) are too cold for water ice to generate an appreciable coma via sublimation. Despite this, numerous high perihelion objects (HPOs) including many comets and recently escaped Kuiper belt objects (``Centaurs'') are observed to be active out at least to the orbit of Saturn ($q \sim$ 10 AU)... (read more)

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  • EARTH AND PLANETARY ASTROPHYSICS