A possible origin for the grooves of PHOBOS

Details A possible origin for the grooves of PHOBOS A possible origin for the grooves of PHOBOS

Dec 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979natur.282..697w&link_type=abstract

Nature, vol. 282, Dec. 13, 1979, p. 697, 698.

Physics

5

Mars (Planet), Orbit Decay, Phobos, Satellite Rotation, Energy Dissipation, Grooves, Shear Stress, Tensile Stress, Tides, Mars, Satellites, Phobos, Grooves, Origin, Fractures, Tidal Effects, Stress, Orbits, Impacts, Ages, Distribution

Scientific paper

A hypothesis that the age and distribution of grooves on the surface of Phobos may be explained by a hybrid origin due to varying tidal stresses induced after a large impact altered the satellite's rotation rate is presented. The theory that these grooves are surface manifestations of internal fractures induced by the decay of Phobos orbit is ruled out because this mechanism would require the grooves to be extremely young features, but their implied age is greater than 10 to the 9th power yr. The location and relationship of grooves to the largest crater, Stickney, indicate that they are related to the Stickney impact, but were formed shortly after that event with orientations determined by the shape of Phobos. If the impact destroyed the condition of synchronous rotation, the changing orientation of Phobos in the gravitational field of Mars would subject its interior to stresses, producing the systems of grooves.

Affiliated with

Also associated with

No associations

Rating

A possible origin for the grooves of PHOBOS does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A possible origin for the grooves of PHOBOS, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A possible origin for the grooves of PHOBOS will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1449869