Disintegrating Inbound Long-period Comet C/2019 J2

  title={Disintegrating Inbound Long-period Comet C/2019 J2},
  author={David C. Jewitt and Jane X. Luu},
  journal={The Astrophysical Journal},
  • D. Jewitt, J. Luu
  • Published 4 September 2019
  • Physics
  • The Astrophysical Journal
We present observations of the disintegrating long-period comet C/2019 J2 (Palomar) taken to determine the nature of the object and the cause of its demise. The data are consistent with break-up of a sub-kilometer nucleus into a debris cloud of mass or order 1e9 kg, peaking on UT 2019 May 24+/-$12. This is 56 days before perihelion and at a heliocentric distance of 1.9 AU. We consider potential mechanisms of disintegration. Tidal disruption is ruled-out, because the comet has not passed within… 

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