A terrestrial-mass rogue planet candidate detected in the shortest-timescale microlensing event

@article{Mrz2020ATR,
  title={A terrestrial-mass rogue planet candidate detected in the shortest-timescale microlensing event},
  author={P. Mr{\'o}z and R. Poleski and A. Gould and A. Udalski and T. Sumi and M. Szymański and I. Soszyński and P. Pietrukowicz and S. Kozłowski and J. Skowron and K. Ulaczyk and M. Albrow and S.-J. Chung and C. Han and K. Hwang and Y. K. Jung and H.-W. Kim and Y. Ryu and I. Shin and Y. Shvartzvald and J. Yee and W. Zang and S. Cha and D-J. Kim and S.-L. Kim and C.-U. Lee and D. Lee and Y. Lee and B.-G. Park and R. Pogge},
  journal={arXiv: Earth and Planetary Astrophysics},
  year={2020}
}
Some low-mass planets are expected to be ejected from their parent planetary systems during early stages of planetary system formation. According to planet-formation theories, such as the core accretion theory, typical masses of ejected planets should be between 0.3 and 1.0 $M_{\oplus}$. Although in practice such objects do not emit any light, they may be detected using gravitational microlensing via their light-bending gravity. Microlensing events due to terrestrial-mass rogue planets are… Expand

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