Milan Bursa

Bio: Milan Bursa is an academic researcher from Czechoslovak Academy of Sciences. The author has contributed to research in topics: Secular variation & Love number. The author has an hindex of 1, co-authored 6 publications receiving 16 citations.

Secular love and tidal numbers of synchronously orbiting satellites

Abstract: The secular Love and the secular tidal numbers have been computed for eight synchronously orbiting satellites in the solar system for which the triaxiality parameters and satellite-centric gravitational constant are available. Excepting Deimos the total mass of which should be first refined, the secular Love and tidal numbers are rather close to unity, as a rule. That is why, the centrifugal and tidal distortions can be assumed responsible for the actual figures of the synchronously orbiting satellites resulting from the primordial spheres, as well as, their static equilibrium nearly satisfied. The hypothesis of the origin of synchronously orbiting satellites by accretion in orbits is supported by the results obtained.

Long term variation in the secular love number

Abstract: It has been demonstrated that the observed decrease in the second zonal geopotential harmonic linear in time and the secular decrease in the angular velocity of the Earth's rotation do not satisfy the relation defining the secular Love number k as constant during the whole history of the Earth's evolution. The discrepancy disappears if it is assumed thatdk/dt=−2.4×10−6 cy−1 .

Secular Love Number of PHOBOS

Abstract: Le nombre de Love qui represente la deformation centrifuge d'un corps celeste au cours de son histoire est evalue a 10•4 pour le satellite Phobos de Mars. Cette valeur accredite la theorie selon laquelle Phobos serait le resultat d'une accretion autour de sa planete-mere. Au tout debut de son histoire la periode de rotation est estimee a 2•4 heures

Torques exerted on Phobos by Mars and the sun

Abstract: Determination numerique des principaux moments d'inertie et des coefficients de libration de Phobos a partir d'un modele tri-axial homogene. Le couple precession-mutation-maree exerce sur le satellite par le soleil et par Mars est estime ainsi que le nombre seculaire de Love; ce dernier conforte l'idee d'une formation a partir de l'accretion de matiere en orbite

Tidal evolution and hydrostatic equilibrium of Phobos

Abstract: A dynamical model of Phobos has been set up: its boundary surface is defined by the 2nd degree Stokes zonal and sectorial parameters, the mass and angular velocity of rotation of the body (assumed homogeneous), plus the constant part of the tidal potential due to Mars which is relatively very large. The tidal evolution has been outlined, based on the condition that, at a certain epoch, the sum of the tidal and centrifugal forces on the surface of Phobos should be equal to the gravitation of opposite sign. The problem of hydrostatic equilibrium of Phobos is discussed.