Large size and slow rotation of the trans-Neptunian object (225088) 2007 OR10 discovered from Herschel and K2 observations

  title={Large size and slow rotation of the trans-Neptunian object (225088) 2007 OR10 discovered from Herschel and K2 observations},
  author={Andr'as P'al and Cs. Kiss and Thomas G. Muller and L'aszl'o Moln'ar and R'obert Szab'o and Gy. Szab and Kriszti'an S'arneczky and L'aszl'o Kiss Konkoly Observatory and Research Centre for Astronomy and Earth Sciences and Department of Physics Astronomy and Eotvos Lor'and University and Max-Planck-Institut fur extraterrestrische Physik and Elte Gothard Astrophysical Observatory and Gothard-Lendulet Research Team and Sydney Institute for Astronomy and School of Physics A28 and University of Western Sydney},
  journal={arXiv: Earth and Planetary Astrophysics},
We present the first comprehensive thermal and rotational analysis of the second most distant trans-Neptunian object (225088) 2007 OR10. We combined optical light curves provided by the Kepler space telescope -- K2 extended mission and thermal infrared data provided by the Herschel Space Observatory. We found that (225088) 2007 OR10 is likely to be larger and darker than derived by earlier studies: we obtained a diameter of d=1535^{+75}_{-225} km which places (225088) 2007 OR10 in the biggest… Expand

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