Results 11 to 20 of about 2,119 (276)
Heliotropic dust rings for Earth climate engineering [PDF]
, 2013 This paper examines the concept of a Sun-pointing elliptical Earth ring comprised of dust grains to offset global warming. A new family of non-Keplerian periodic orbits, under the effects of solar radiation pressure and the Earth's J(2) oblateness ...
Bewick, Russell +4 more
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Orbital dynamics of high area-to-mass ratio spacecraft under the influence of J2 and solar radiation pressure [PDF]
, 2011 This paper investigates the effect of planetary oblateness and solar radiation pressure on the orbit of high area-to-mass spacecraft. A planar Hamiltonian model shows the existence of equilibrium orbits with the orbit apogee pointing towards or away from
Colombo, Camilla +2 more
core +3 more sources
Constraining the oblateness of Kepler planets [PDF]
, 2014 We use Kepler short-cadence light curves to constrain the oblateness of planet candidates in the Kepler sample. The transits of rapidly rotating planets that are deformed in shape will lead to distortions in the ingress and egress of their light curves ...
Zhou, Guyin (George) +4 more
core +1 more source
On solar oblateness measurements during the current solar cycle 24
, 2015 International audienceThe rotation of the Sun on itself involves a flatness of the Polar Regions. The solar oblateness results from the rotation of the whole solar interior and the distribution of its mass according to the depth.
Irbah, Abdanour +3 more
core +5 more sources
On the Effects of Planetary Oblateness on Exoplanet Studies [PDF]
, 2023 When studying transiting exoplanets it is common to assume a spherical planet shape. However, short rotational periods can cause a planet to bulge at its equator, as is the case with Saturn, whose equatorial radius is almost 10% larger than its polar ...
de Wit, Julien, Berardo, David
core +1 more source
Earth, Planets and Space, 2022 Solar radiation pressure (SRP) is an extremely critical perturbative force that affects the GNSS satellites’ precise orbit determination (POD). Its imperfect modelling is one of the main error sources of POD, whose magnitude is even to10−9 m/s2.
Yan Zhang +3 more
doaj +1 more source
Open Astronomy, 2019 This paper aims to study the effect of the triaxiality and the oblateness as a special case of primaries on the locations and stability of the collinear equilibrium points of the elliptic restricted three body problem (in brief ERTBP).
Rahoma Walid Ali +3 more
doaj +1 more source
Orbital dynamics in the Hill problem with oblateness
Results in Physics, 2023 In this paper, we investigate the impact of the oblateness of the secondary body on the motion of a test particle in the near vicinity of the secondary body, specifically in the context of the extended version of the planar Hill problem.
Eman M. Moneer +5 more
doaj +1 more source
Physical Review D, 1998 The spherically symmetric hedgehog ansatz used in the description of the skyrmion is believed to be inadequate for the rotational states such as the nucleon (I=J=1/2) and the Delta (I=J=3/2) due to centrifugal forces. We study here a simple alternative: an oblate spheroidal solution which leads to lower masses for these baryons.
Leblond, F., Marleau, L.
openaire +2 more sources
The collinear equilibrium points in the restricted three body problem with triaxial primaries
Open Physics, 2018 The perturbed restricted three body problem has been reviewed. The mass of the primaries are assumed as triaxial. The locations of the collinear points have been computed. Series forms of these locations are obtained as new analytical results.
Alamri Sultan Z. +2 more
doaj +1 more source