The Nucleus of Interstellar Comet 2I/Borisov

@article{Jewitt2020TheNO,
  title={The Nucleus of Interstellar Comet 2I/Borisov},
  author={David Clifford Jewitt and Man-To Hui and Yoonyoung Kim and Max Mutchler and Harold Weaver and Jessica Agarwal},
  journal={The Astrophysical Journal},
  year={2020},
  volume={888}
}
  • David Clifford Jewitt, Man-To Hui, +3 authors Jessica Agarwal
  • Published 2020
  • Physics
  • The Astrophysical Journal
  • We present high resolution imaging observations of interstellar comet 2I/Borisov (formerly C/2019 Q4) obtained using the Hubble Space Telescope. Scattering from the comet is dominated by a coma of large particles (characteristic size 0.1 mm) ejected anisotropically. Convolution modeling of the coma surface brightness profile sets a robust limit to the spherical-equivalent nucleus radius r_n 0.2 km (nucleus density 500 kg/m3 assumed). The profile and the non-gravitational constraints cannot be… CONTINUE READING

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