176 citations · 2k across the 54 of their papers we have counts for
54 papers
Evolution of a synchronous planet-moon pair due to solar tides. Demise of the synchronous moon that initiated Mars' triaxiality. A possible link to tidalites in Vastitas Borealis and Gale Crater
Michael Efroimsky
Mars' asymmetric figure with two opposing equatorial elevations stems from a frozen tidal bulge raised by a synchronous palaeo-moon Nerio. Nerio's emergence, via in situ accretion…
Synchronisation of a tidal binary by inward orbital migration. The case of Pluto and Charon
Michael Efroimsky, Michaela Walterova, Yeva Gevorgyan +3
It is usually taken for granted that mutual synchronisation of a tidal two-body system is attained through tidal recession, assuming the reduced Hill sphere is not reached. However…
Initial conditions for tidal synchronisation of a planet by its moon
Valeri V. Makarov, Michael Efroimsky
Moons tidally interact with their host planets and stars. A close moon is quickly synchronised by the planet, or becomes captured in a higher spin-orbit resonance. However, the pla…
A synchronous moon as a possible cause of Mars' initial triaxiality
Michael Efroimsky
The paper addresses the possibility of a young Mars having had a massive moon, which synchronised the rotation of Mars, and gave Mars an initial asymmetric triaxiality to be later…
On the orbital decay of the gas giant Kepler-1658b
Adrian J. Barker, Michael Efroimsky, Valeri V. Makarov +1
The gas giant Kepler-1658b has been inferred to be spiralling into its sub-giant F-type host star Kepler-1658a (KOI-4). The measured rate of change of its orbital period is $\dot{P…
Pathways of Survival of Exomoons and Inner Exoplanets
Valeri V. Makarov, Michael Efroimsky
It is conceivable that a few thousand confirmed exoplanets initially harboured satellites similar to the moons of the Solar system or larger. Could some of them have survived over…