Academic literature on the topic 'Model Kepler-Newton'

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Journal articles on the topic "Model Kepler-Newton"

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Stavek, Jiri. "Kepler´s Ellipse Observed from Newton´s Evolute (1687), Horrebow´s Circle (1717), Hamilton´s Pedal Curve (1847), and Two Contrapedal Curves (28.10.2018)." Applied Physics Research 10, no. 6 (2018): 90. http://dx.doi.org/10.5539/apr.v10n6p90.

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Johannes Kepler discovered the very elegant elliptical path of planets with the Sun in one focus of that ellipse in 1605. Kepler inspired generations of researchers to study properties hidden in those elliptical paths. The visible elliptical paths belong to the Aristotelian World. On the other side there are invisible mathematical objects in the Plato´s Realm that might describe the mechanism behind those elliptical paths. One such curve belonging to the Plato´s Realm discovered Isaac Newton in 1687 - the locus of radii of curvature of that ellipse (the evolute of the ellip
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Stavek, Jiri. "Newton’s Hyperbola Observed from Newton’s Evolute (1687), Gudermann’s Circle (1833), the Auxiliary Circle (Pedal Curve and Inversion Curve), the Lemniscate of Bernoulli (1694) (Pedal Curve and Inversion Curve) (09.01.2019)." Applied Physics Research 11, no. 1 (2019): 65. http://dx.doi.org/10.5539/apr.v11n1p65.

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Johannes Kepler and Isaac Newton inspired generations of researchers to study properties of elliptic, hyperbolic, and parabolic paths of planets orbiting around the Sun. After the intensive study of those conic sections during the last four hundred years it is believed that this topic is practically closed and the 21st Century cannot bring anything new to this subject. Can we add to those visible orbits from the Aristotelian World some curves from the Plato’s Realm that might bring to us new information about those conic sections? Isaac Newton in 1687 discovered one such curve - the
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Stavek, Jiri. "Kepler’s Ellipse Generated by the Trigonometrically Organized Gravitons." Applied Physics Research 10, no. 4 (2018): 26. http://dx.doi.org/10.5539/apr.v10n4p26.

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Johannes Kepler made his great breakthrough when he discovered the elliptical path of the planet Mars around the Sun located in one focus of that ellipse (on the 11th October in 1605 in a letter to Fabricius). The first generation of researchers in the 17th century intensively discussed about the possible mechanism needed for the generation of that elliptical orbit and about the function of the empty focus of that ellipse. First generations of researchers proposed an interplay between attractive and repulsive forces that might guide the planet on its elliptical orbit. Isaac Newton made a giant
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Dobrotka, A., H. Negoro, and S. Mineshige. "Similar shot profile morphology of fast variability in a cataclysmic variable, X-ray binary, and blazar: The MV Lyrae case." Astronomy & Astrophysics 631 (November 2019): A134. http://dx.doi.org/10.1051/0004-6361/201935198.

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Context. The cataclysmic variable MV Lyr has been found to be present in the Kepler field, yielding a light curve with the duration of almost 1500 days with 60 s cadence. Such high quality data of this nova-like system with obvious fast optical variability reveal multi-component power density spectra, as shown by previous works. Aims. Our goal is to study the light curve from a different point of view and perform a shot profile analysis. We search for characteristics that have not been discovered with standard methods based on power density spectrum. Methods. The shot profile method identifies
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Kolotkov, Dmitrii Y., Valery M. Nakariakov, Robin Holt, and Alexey A. Kuznetsov. "Multiwavelength Quasi-periodic Pulsations in a Stellar Superflare." Astrophysical Journal Letters 923, no. 2 (2021): L33. http://dx.doi.org/10.3847/2041-8213/ac432e.

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Abstract We present the first multiwavelength simultaneous detection of quasi-periodic pulsations (QPPs) in a superflare (more than a thousand times stronger than known solar flares) on a cool star, in soft X-rays (SXRs, with XMM-Newton) and white light (WL, with Kepler). It allowed for the first ever analysis of oscillatory processes in a stellar flare simultaneously in thermal and nonthermal emissions, conventionally considered to come from the corona and chromosphere of the star, respectively. The observed QPPs have periods 1.5 ± 0.15 hr (SXR) and 3 ± 0.6 hr (WL), and correlate well with ea
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Sánchez-Fernández, C., J. J. E. Kajava, J. Poutanen, E. Kuulkers, and V. F. Suleimanov. "Burst-induced coronal cooling in GS 1826–24." Astronomy & Astrophysics 634 (February 2020): A58. http://dx.doi.org/10.1051/0004-6361/201936599.

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Type I X-ray bursts in GS 1826–24, and in several other systems, may induce cooling of the hot inner accretion flow that surrounds the bursting neutron star. Given that GS 1826–24 remained persistently in the hard state over the period 2003–2008 and presented regular bursting properties, we stacked the spectra of the X-ray bursts detected by INTEGRAL (JEM-X and ISGRI) and XMM-Newton (RGS) during that period to study the effect of the burst photons on the properties of the Comptonizing medium. The extended energy range provided by these instruments allows the simultaneous observation of the bur
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Wanner, G. "Kepler, Newton and numerical analysis." Acta Numerica 19 (May 2010): 561–98. http://dx.doi.org/10.1017/s0962492910000073.

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Numerical methods are usually constructed for solving mathematical problems such as differential equations or optimization problems. In this contribution we discuss the fact that numerical methods, applied inversely, were also important inestablishingthese models. We show in detail the discovery of the laws of planetary motion by Kepler and Newton, which stood at the beginning of modern science. The 400th anniversary of the publication of Kepler's laws (1609) is a good occasion for this investigation.
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Abuter, R., A. Amorim, M. Bauböck, et al. "Detection of the Schwarzschild precession in the orbit of the star S2 near the Galactic centre massive black hole." Astronomy & Astrophysics 636 (April 2020): L5. http://dx.doi.org/10.1051/0004-6361/202037813.

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The star S2 orbiting the compact radio source Sgr A* is a precision probe of the gravitational field around the closest massive black hole (candidate). Over the last 2.7 decades we have monitored the star’s radial velocity and motion on the sky, mainly with the SINFONI and NACO adaptive optics (AO) instruments on the ESO VLT, and since 2017, with the four-telescope interferometric beam combiner instrument GRAVITY. In this Letter we report the first detection of the General Relativity (GR) Schwarzschild Precession (SP) in S2’s orbit. Owing to its highly elliptical orbit (e = 0.88), S2’s SP is m
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Magaudda, E., B. Stelzer, K. R. Covey, St Raetz, S. P. Matt, and A. Scholz. "Relation of X-ray activity and rotation in M dwarfs and predicted time-evolution of the X-ray luminosity." Astronomy & Astrophysics 638 (June 2020): A20. http://dx.doi.org/10.1051/0004-6361/201937408.

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The relation of activity to rotation in M dwarfs is of high astrophysical interest because it provides observational evidence of the stellar dynamo, which is poorly understood for low-mass stars, especially in the fully convective regime. Previous studies have shown that the relation of X-ray activity to rotation consists of two different regimes: the saturated regime for fast-rotating stars and the unsaturated regime for slowly rotating stars. The transition between the two regimes lies at a rotation period of ∼10 d. We present here a sample of 14 M dwarf stars observed with XMM-Newton and Ch
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Flechtner, Frank, Christoph Reigber, Reiner Rummel, and Georges Balmino. "Satellite Gravimetry: A Review of Its Realization." Surveys in Geophysics 42, no. 5 (2021): 1029–74. http://dx.doi.org/10.1007/s10712-021-09658-0.

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AbstractSince Kepler, Newton and Huygens in the seventeenth century, geodesy has been concerned with determining the figure, orientation and gravitational field of the Earth. With the beginning of the space age in 1957, a new branch of geodesy was created, satellite geodesy. Only with satellites did geodesy become truly global. Oceans were no longer obstacles and the Earth as a whole could be observed and measured in consistent series of measurements. Of particular interest is the determination of the spatial structures and finally the temporal changes of the Earth's gravitational field. The k
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Dissertations / Theses on the topic "Model Kepler-Newton"

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Собаєва, Д. А. "Знаходження ефемериди Марса". Thesis, Сумський державний університет, 2015. http://essuir.sumdu.edu.ua/handle/123456789/44006.

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Протягом сторіч створювалися різні математичні моделі Всесвіту. Вони змінювались із розвитком технічного обладнання та математики, разом із зміною уявлень про Всесвіт. Не дивлячись, на невірні дані про структуру Всесвіту, одна з таких моделей проіснувала 14 століть, причому майже незмінною. Це модель Птолемея-Гіппарха.
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Bracco, Christian. "Histoire et Enseignement de la Physique : Lumière, Planètes, Relativité et Quanta." Habilitation à diriger des recherches, École normale supérieure de Cachan - ENS Cachan, 2010. http://tel.archives-ouvertes.fr/tel-00529686.

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Il est possible de concevoir un enseignement de la physique qui incorpore l'histoire de la physique sur un mode qui n'est ni anecdotique, ni autonome et qui peut être décliné à différents niveaux de la formation, des élèves de lycée aux enseignants à l'université. L'introduction du manuscrit porte sur une mise en perspective de la démarche proposée avec des recherches antérieures. Le manuscrit est composé de quatre parties. Dans la partie I, après avoir rappelé les objectifs qui ont prévalu à la réalisation du cédérom « Histoire des idées sur la lumière - de l'Antiquité au début du XXe siècle
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