Michael Efroimsky (Russian: Михаил Эфроимский) is an American astronomer of Russian origin. His research interests are in celestial mechanics and relativity. He is working as a Research Scientist at the US Naval Observatory in Washington DC.

Michael Efroimsky is a member of the International Astronomical Union and the American Astronomical Society (AAS).

In 2008 - 2009, he served as the Chair of the Division on Dynamical Astronomy of the AAS.

With Sergei Kopeikin and George Kaplan, Michael Efroimsky co-authored a book[1] on the relativistic celestial mechanics of the Solar System.

With Benoit Noyelles, Julien Frouard and Valeri V. Makarov, Michael Efroimsky co-authored a theory [2] explaining the origin of the present state of rotation of the planet Mercury, a so-called 3:2 spin-orbit resonance.

With Amirhossein Bagheri, Amir Khan, and other colleagues, Michael Efroimsky co-authored a theory explaining the origin and orbital evolution of Phobos and Deimos, the satellites of Mars. [3] According to this theory, Phobos and Deimos are remnants of a common progenitor, a larger protomoon destroyed by a collision with a planetesimal.

Michael Efroimsky also published translations from classical Russian poetry.[4] [5]

Notes

  1. ↑ Kopeikin, S.; Efroimsky M. & Kaplan G. (2011). Relativistic Celestial Mechanics of the Solar System. Wiley-VCH, Berlin. ISBN 978-3-527-40856-6.
  2. ↑ Noyelles, Benoit; Frouard, Julien; Makarov, Valeri V.; Efroimsky, Michael (October 2014). "Spin-orbit evolution of Mercury revisited". Icarus. 241: 26–44. arXiv:1307.0136. Bibcode:2014Icar..241...26N. doi:10.1016/j.icarus.2014.05.045. S2CID 53690707.
  3. ↑ A. Bagheri, A. Khan, M. Efroimsky, M. Kruglyakov, and D. Giardini (22 February 2021). "Dynamical evidence for Phobos and Deimos as remnants of a disrupted common progenitor ". Nature Astronomy. 5 (6): 539–543. Bibcode:2021NatAs...5..539B. doi:10.1038/s41550-021-01306-2. S2CID 233924981.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  4. ↑ Efroimsky, Michael (October 2018). "Translations from classical Russian poetry. Three poems by Osip Mandelstam". Delos: A Journal of Translation and World Literature. 33 (2): 202–209.
  5. ↑ Efroimsky, Michael (October 2018). "Translations from classical Russian poetry. Two poems by Joseph Brodsky". Delos: A Journal of Translation and World Literature. 33 (2): 210–218.

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