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AI providing new light on lensing degeneracies

Machine-learning methods are used to provide a more unified picture of mathematical degeneracies in light curves of planetary microlensing events.

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Fig. 1: Different physical planet–host configurations can result in nearly identical light curves of planetary gravitational microlensing events.


  1. Mao, S. & Paczyński, B. Astrophys. J. Lett. 374, L37–L40 (1991).

    Article  ADS  Google Scholar 

  2. Gould, A. & Loeb, A. Astrophys. J. 96, 104 (1992).

    Article  ADS  Google Scholar 

  3. Gould, A. in Methods of Detecting Exoplanets: 1st Advanced School on Exoplanetary Science (eds Bozza, V., Mancini, L. & Sozzetti, A.) 135–179 (Springer, 2016).

  4. Griest, K. & Safizadeh, N. Astrophys. J. 500, 37–50 (1998).

    Article  ADS  Google Scholar 

  5. Dominik, M. Astron. Astrophys. 349, 108–125 (1999).

    ADS  Google Scholar 

  6. Han, C. et al. Astron. J. 156, 226 (2018).

    Article  ADS  Google Scholar 

  7. Zhang, K., Gaudi, B. S. & Bloom, J. S. Nat. Astron. (2022).

    Article  Google Scholar 

  8. Zhang, K. et al. Astron. J. 161, 262 (2021).

    Article  ADS  Google Scholar 

  9. Yee, J. C. et al. Astron. J. 162, 180 (2021).

    Article  ADS  Google Scholar 

  10. Penny, M. T. et al. Astrophys. J. Suppl. S. 241, 3 (2019).

    Article  ADS  Google Scholar 

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Correspondence to Przemek Mróz.

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Mróz, P. AI providing new light on lensing degeneracies. Nat Astron 6, 774–775 (2022).

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