The Experts below are selected from a list of 5463 Experts worldwide ranked by ideXlab platform

P M Travnicek - One of the best experts on this subject based on the ideXlab platform.

  • Mercury s weather beaten surface understanding Mercury in the context of lunar and asteroidal space weathering studies
    Space Science Reviews, 2014
    Co-Authors: Deborah L Domingue, C R Chapman, R M Killen, T H Zurbuchen, Jason A Gilbert, M Sarantos, Mehdi Benna, J A Slavin, David Schriver, P M Travnicek
    Abstract:

    Understanding the composition of Mercury's crust is key to comprehending the formation of the Planet. The regolith, derived from the crustal bedrock, has been altered via a set of space weathering processes. These processes are the same set of mechanisms that work to form Mercury's exosphere, and are moderated by the local space environment and the presence of an intrinsic Planetary magnetic field. The alterations need to be understood in order to determine the initial crustal compositions. The complex interrelationships between Mercury's exospheric processes, the space environment, and surface composition are examined and reviewed. The processes are examined in the context of our understanding of these same processes on the lunar and asteroid regoliths. Keywords: Mercury (Planet) Space weathering Surface processes Exosphere Surface composition Space environment 3

V M Tkachuk - One of the best experts on this subject based on the ideXlab platform.

  • upper bound on the momentum scale in noncommutative phase space of canonical type
    EPL, 2019
    Co-Authors: Kh P Gnatenko, V M Tkachuk
    Abstract:

    We find a stringent upper bound on the momentum scale in noncommutative phase space of canonical type on the basis of studies of the perihelion shift of the Mercury Planet by taking into account features of the description of the motion of a macroscopic body in the space with noncommutativity of coordinates and noncommutativity of momenta. Using results for precession of the perihelion of the Mercury Planet from ranging to the MESSENGER spacecraft we obtain an upper bound for the parameter of momentum noncommutativity 10-83 kg2 m2 /s2 which is many orders less than known in the literature.

  • upper bound on the momentum scale in noncommutative phase space of canonical type
    arXiv: High Energy Physics - Theory, 2019
    Co-Authors: Kh P Gnatenko, V M Tkachuk
    Abstract:

    We find stringent upper bound on the momentum scale in noncommutative phase space of canonical type on the basis of studies of perihelion shift of the Mercury Planet with taking into account features of description of motion of macroscopic body in the space with noncommutativity of coordinates and noncommutativity of momenta. Using results for precession of perihelion of the Mercury Planet from ranging to the MESSENGER spacecraft we obtain upper bound for parameter of momentum noncommutativity $10^{-80}\textrm{kg}^2\textrm{m}^2/\textrm{s}^2$ which is many orders less than known in the literature.

Kh P Gnatenko - One of the best experts on this subject based on the ideXlab platform.

  • minimal momentum estimation in noncommutative phase space of canonical type with preserved rotational and time reversal symmetries
    European Physical Journal Plus, 2020
    Co-Authors: Kh P Gnatenko
    Abstract:

    Noncommutative algebra which is rotationally invariant, time reversal invariant and equivalent to noncommutative algebra of canonical type is considered. Perihelion shift of orbit of a particle in Coulomb potential in the rotationally-invariant noncommutative phase space is found up to the second order in the parameters of noncommutativity. Applying the result to the case of Mercury Planet and using observable results for precession of its orbit we find upper bounds on the parameters of noncommutativity in the rotationally-invariant noncommutative phase space. The obtained upper bound for the parameter of momentum noncommutativity is at least ten orders less than the upper bounds estimated on the basis of studies of the hydrogen atom in noncommutative phase space. As a result we obtain stringent restriction on for the minimal momentum in noncommutative phase space with preserved rotational and time reversal symmetries.

  • upper bound on the momentum scale in noncommutative phase space of canonical type
    EPL, 2019
    Co-Authors: Kh P Gnatenko, V M Tkachuk
    Abstract:

    We find a stringent upper bound on the momentum scale in noncommutative phase space of canonical type on the basis of studies of the perihelion shift of the Mercury Planet by taking into account features of the description of the motion of a macroscopic body in the space with noncommutativity of coordinates and noncommutativity of momenta. Using results for precession of the perihelion of the Mercury Planet from ranging to the MESSENGER spacecraft we obtain an upper bound for the parameter of momentum noncommutativity 10-83 kg2 m2 /s2 which is many orders less than known in the literature.

  • upper bound on the momentum scale in noncommutative phase space of canonical type
    arXiv: High Energy Physics - Theory, 2019
    Co-Authors: Kh P Gnatenko, V M Tkachuk
    Abstract:

    We find stringent upper bound on the momentum scale in noncommutative phase space of canonical type on the basis of studies of perihelion shift of the Mercury Planet with taking into account features of description of motion of macroscopic body in the space with noncommutativity of coordinates and noncommutativity of momenta. Using results for precession of perihelion of the Mercury Planet from ranging to the MESSENGER spacecraft we obtain upper bound for parameter of momentum noncommutativity $10^{-80}\textrm{kg}^2\textrm{m}^2/\textrm{s}^2$ which is many orders less than known in the literature.

Deborah L Domingue - One of the best experts on this subject based on the ideXlab platform.

  • Mercury s weather beaten surface understanding Mercury in the context of lunar and asteroidal space weathering studies
    Space Science Reviews, 2014
    Co-Authors: Deborah L Domingue, C R Chapman, R M Killen, T H Zurbuchen, Jason A Gilbert, M Sarantos, Mehdi Benna, J A Slavin, David Schriver, P M Travnicek
    Abstract:

    Understanding the composition of Mercury's crust is key to comprehending the formation of the Planet. The regolith, derived from the crustal bedrock, has been altered via a set of space weathering processes. These processes are the same set of mechanisms that work to form Mercury's exosphere, and are moderated by the local space environment and the presence of an intrinsic Planetary magnetic field. The alterations need to be understood in order to determine the initial crustal compositions. The complex interrelationships between Mercury's exospheric processes, the space environment, and surface composition are examined and reviewed. The processes are examined in the context of our understanding of these same processes on the lunar and asteroid regoliths. Keywords: Mercury (Planet) Space weathering Surface processes Exosphere Surface composition Space environment 3

C R Chapman - One of the best experts on this subject based on the ideXlab platform.

  • Mercury s weather beaten surface understanding Mercury in the context of lunar and asteroidal space weathering studies
    Space Science Reviews, 2014
    Co-Authors: Deborah L Domingue, C R Chapman, R M Killen, T H Zurbuchen, Jason A Gilbert, M Sarantos, Mehdi Benna, J A Slavin, David Schriver, P M Travnicek
    Abstract:

    Understanding the composition of Mercury's crust is key to comprehending the formation of the Planet. The regolith, derived from the crustal bedrock, has been altered via a set of space weathering processes. These processes are the same set of mechanisms that work to form Mercury's exosphere, and are moderated by the local space environment and the presence of an intrinsic Planetary magnetic field. The alterations need to be understood in order to determine the initial crustal compositions. The complex interrelationships between Mercury's exospheric processes, the space environment, and surface composition are examined and reviewed. The processes are examined in the context of our understanding of these same processes on the lunar and asteroid regoliths. Keywords: Mercury (Planet) Space weathering Surface processes Exosphere Surface composition Space environment 3