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Listar por palabra clave "Celestial mechanics"

Mostrando ítems 1-8 de 8

A geometrical study about the biparametric family of anomalies in the elliptic two-body problem with extensions to other families

López Ortí, José Antonio; Marco Castillo, Francisco José; Martínez Uso, María José (MDPI AG, 2024-02)

[EN] In the present paper, we efficiently solve the two-body problem for extreme cases such as those with high eccentricities. The use of numerical methods, with the usual variables, cannot maintain the perihelion passage ...
About C/539W1 and C/1245D1 as the parent comet of 15-BOOTIDS

Martínez Uso, María José; Marco Castillo, Francisco J. (Elsevier, 2021-09)

[EN] In a recent paper published in this journal it was presented an interesting study on the 2019 outburst of the 15-Bootids and it was suggested the possibility that comet C/539W1 was the parent comet of this meteor ...
Geometrical definition of a continuous family of time transformations generalizing and including the classic anomalies of the elliptic two-body problem

López Ortí, J.A.; Marco Castillo, Francisco J.; Martínez Uso, María José (Elsevier, 2017-01-01)

[EN] This paper is aimed to address the study of techniques focused on the use of a family of anomalies based on a family of geometric transformations that includes the true anomaly f, the eccentric anomaly g and the ...
Geometrical definition of a continuous family of time transformations on the hyperbolic two-body problem

López Ortí, J.A.; Marco Castillo, Francisco J.; Martínez Uso, María José (Elsevier, 2018)

[EN] This paper is aimed to address the study of techniques focused on the use of a new set of anomalies based on geometric continuous transformations, depending on a parameter a, that includes the true anomaly. This family ...
Homogenization in compiling ICRF combined catalogs

Marco Castillo, Francisco J.; Martínez Uso, María José; Lopez Orti, Jose Antonio (EDP Sciences, 2013-10)

Context. The International Astronomical Union (IAU) recommendations regarding the International Celestial Reference Frame (ICRF) realizations require the construction of radio sources catalogs obtained using very-long-baseline ...
On the effect of ocean tides and tesseral harmonics on spacecraft flybys of the Earth

Acedo Rodríguez, Luis (Oxford University Press (OUP), 2016)

[EN] The so-called flyby anomaly has encouraged several authors to analyse in detail the minor perturbative contributions to the trajectory of spacecraft performing a flyby manoeuvre. This anomaly consist of an unexplained ...
The epicycle model

Cubarsi, Rafael (Universitat Politècnica de València, 2013-06-02)

[EN] The solutions of the equations of motion for a point mass particle under a conservative force field are generally constrained by a basic set of integrals of motion, which depend on the knowledge about the potential ...
Using the motion of S2 to constrain vector clouds around Sgr A

Foschi, A.; Abuter, R.; Abd El Dayem, K.; Aimar, R.; Amaro-Seoane, Pau; Amorim, A.; Berger, J.P.; Bonnet, H.; Bourdarot, G.; Brandner, W.; Davies, R.; de Zeeuw, P. T.; Defrére, D.; Dexter, J.; Drescher, A. (Oxford University Press, 2024-05-06)

[EN] The dark compact object at the centre of the Milky Way is well established to be a supermassive black hole with mass M-center dot similar to 4.3 x 10(6) M-circle dot, but the nature of its environment is still under ...