Circular Orbits
A pair of giant planets around the evolved intermediate-mass star hd 47366: multiple circular orbits or a mutually retrograde configuration
... t orbits are unstable in the case of a prograde con fi ...nearly circular orbits, namely the eccentricity of the outer planet is less than ∼ ...
11
Evolution of star clusters on eccentric orbits
... eccentric orbits in dynamical models of cluster evolution that are limited to spherical symmetry/circular orbits and in (fast) semi-analytic models of clusters and cold tidal ...
7
Truly eccentric - II. When can two circular planets mimic a single eccentric orbit?
... The results presented herein are also relevant to exoplanet searches that utilize the transit method. The relative lack of orbital phase coverage from transiting planets without accompanying RV data makes the reliable ...
9
Waves and null congruences in a draining bathtub
... We study wave propagation in a draining bathtub: a fluid-mechanical black hole analogue in which perturbations are governed by a Klein-Gordon equation on an effective Lorentzian geometry. Like the Kerr spacetime, the ...
13
The GALAH survey: stellar streams and how stellar velocity distributions vary with Galactic longitude, hemisphere, and metallicity
... in the solar neighbourhood is dependent on metallicity (Liu et al. 2015; Liu 2016; Perez-Villegas et al. 2017), with higher metallicity stars more clearly showing the gap separating the stream from the more nearly ...
27
Modeling Kepler transit light curves as false positives: rejection of blend scenarios for Kepler-9, and validation of Kepler-9 d, a super-earth-size planet in a multiple system
... eccentric orbits may allow blends with smaller or larger secondary stars than in the circular case to still provide satisfactory fits to the light curve, effectively increasing the pool of potential false ...
18
Periodic Orbits of the First Kind in the CR4BP When the Second Primary Is a Triaxial Rigid Body
... periodic orbits of the first kind in the CR4BP, we have discussed the problem into five sections starting with introduction about the historical evolution of the ...own circular orbits about the ...
22
The Anglo-Australian planet search. XX. A solitary ice-giant planet orbiting HD 102365
... The three planets noted above with similar properties to HD 102365 b (Gl 876e, HD 69830d, and Gl 581f) all lie in multiple systems. The HD 69830 system is a triple, while the two M-dwarfs (Gl 876 and Gl 581) host four ...
7
Solar Sail Equilibrium Orbits in the Circular Restricted Three Body Problem with Oblateness
... in circular orbits about their center of mass under their mutual attraction ...periodic orbits in the RTBP when the more massive primary was an oblate ...sail orbits in ...
10
Solutions of the Sitnikov's circular restricted three body problems when primaries are oblate spheroid
... Sitnikov [2] motion in three body problem has two primaries of equal masses and these two moving in (i) circular orbits and (ii) elliptic orbits around their center of mass. The third body ...
8
Gravitation, Holographic Principle, and Extra Dimensions
... stable circular orbits in ordinary space are related to stable circular paths on a massless, unmovable, undeformable vortex-like surface, under the action of a tidal gravitational field along the ...
9
AN ANALYTICAL AND NUMERICAL TREATMENT OF INCLINED ELLIPTICAL ORBITS ABOUT A KERR BLACK HOLE
... literature: circular orbits in the equatorial plane of the primary object [1–5], elliptical orbits in the equatorial plane [6–12], and an extensive body of research on circular or elliptical ...
236
Halo Orbits in the Photo Gravitational Restricted Three Body Problem
... Halo Orbits have been the topic of interest for the past few decades among the research ...Halo orbits using Lindstedt-Poincare ...on circular orbits and the Moon to be ...
18
Orbits and Interiors of Planets
... It is noteworthy that evolving the giant planets onto solar system-like orbits is insuffi- cient for a simulation to be deemed successful for indeed, there are additional constraints that must be satisfied. The ...
330
Weighted kneading theory of one dimensional maps with a hole
... periodic orbits, or to the orbits that lie in the hole is also valid for aperiodic ...periodic orbits, or the orbits that lie in the ...
20
Orbits for products of maps
... closed orbits of length n for each n > 1; via a compactification there is a continuous map on a compact metric space with the same property; finally, by a beautiful theorem of Wind- sor [17], there is a C ∞ ...
14
Horndeski scalar-tensor black hole geodesics
... Abstract. We examine massive particles and null geodesics for the scalar-tensor black hole in the Horndeski-Galileon framework. Our analysis shows that first kind relativistic orbits, corresponding to ...
7
Selection of an orbit for communication satellite based on inclination and eccentricity
... After studying the importance of inclination and eccentricity in satellite communication orbits, we choose to study the orbits under their classifications, and explored various satellite orbit types. Under ...
5
Non-Keplerian orbits using hybrid solar sail propulsion for Earth applications
... Molniya orbits allow continous, high elevation observation above 55 deg latitude using three spacecraft, while a conventional Molniya orbit would require in excess of fifteen ...
275
Gravity and Orbits
... Teacher leads a brief demonstration (see set up above) to show how planets revolve around the Sun and gravity is a force that pulls. The washer represents a planet and the pipe represents the Sun. The teacher holds the ...
17