Visible spectroscopy of 2003 UB313: Evidence for N2 ice on the surface of the largest TNO?

  title={Visible spectroscopy of 2003 UB313: Evidence for N2 ice on the surface of the largest TNO?},
  author={Javier Licandro and William M. Grundy and Noem{\'i} Pinilla-Alonso and Julia de Le{\'o}n},
  journal={arXiv: Astrophysics},
The recent discovery of two large trans-Neptunian objects (TNOs) 2003 UB313 and 2005 FY9, with surface properties similar to those of Pluto, provides an exciting new laboratory for the study of processes considered for Pluto and Triton: volatile mixing and transport; atmospheric freeze-out and escape, ice chemistry, and nitrogen phase transitions. We studied the surface composition of TNO 2003 UB313, the first known TNO larger than Pluto. We report a visible spectrum covering the 0.35-0.95… 

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