Searching for Black Holes in the Outer Solar System with LSST
arXiv:2005.12280 · doi:10.3847/2041-8213/aba119
Abstract
Planet Nine has been proposed to potentially be a black hole in the outer solar system. We investigate the accretion flares that would result from impacts of small Oort cloud objects, and find that the upcoming LSST observing program will be able to either rule out or confirm Planet Nine as a black hole within a year. We also find that LSST could rule out or confirm the existence of trapped planet-mass black holes out to the edge of the Oort cloud, indirectly probing the dark matter fraction in subsolar mass black holes and potentially improving upon current limits by orders of magnitude.
arXiv comment4 pages, 2 figures; accepted for publication in ApJL
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- New mechanism for primordial black hole formation from the QCD axion
- Small free field inflation in higher curvature gravity
- Novel Solar System Probes for Primordial Black Holes
- A planet or primordial black hole in the outer region of the Solar system and the dust flow near Earth orbit