XXII. An improved solution of a problem in physical astronomy; by which, swiftly converging series are obtained, which are useful in computing the perturbations of the motions of the Earth, Mars, and Venus, by their mutual attraction. To which is added an appendix, containing an easy method of obtaining the sums of many slowly converging series which arise in taking the fluents of binominal surds, &c. In a letter to the Rev. Nevil Maskelyne, D. D. F. R. S. and Astronomer Royal [PDF]
Philosophical Transactions of the Royal Society of LondonReverend Sir, Such is the subject of the inclosed paper, and such the reputation for skill and industry, which the many valuable papers you have communicated to the Royal Society, and your other learned works, have justly procured to you, that it could not with more propriety be submitted to the judgment of any other person than yourself,
John Hellins
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Mathematics, 2023 This paper focuses on the modification of the large parameter approach (LPA), a novelty procedure, for estimating the periodic solutions of two degrees-of-freedom (DOF) autonomous quasi-linear systems with a first integral.
A. I. Ismail, T. S. Amer, W. S. Amer
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Close Binary Stars Modeled by Two Prolate Ellipsoids in Synchronous Rotation
The Astronomical Journal, 2023 The presence of tidal deformations in close binary stars has already been confirmed by astronomical observations. The present paper aims to simply address an astronomy problem, studying the relative movement of close binaries disturbed by their mutual ...
Antonio Elipe +3 more
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On New Modifications of Some Perturbation Procedures
Discrete Dynamics in Nature and Society, 2021 In this paper, we present new modifications for some perturbation procedures used in mathematics, physics, astronomy, and engineering. These modifications will help us to solve the previous problems in different sciences under new conditions. As problems,
A. I. Ismail
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Rotochemical Heating of Neutron Stars: Rigorous Formalism with Electrostatic Potential Perturbations [PDF]
The Astrophysical Journal, 2006 The electrostatic potential that keeps approximate charge neutrality in neutron star matter is self-consistently introduced into the formalism for rotochemical heating presented in a previous paper by Fernandez and Reisenegger. Although the new formalism is more rigorous, we show that its observable consequences are indistinguishable from those of the ...
Reisenegger, Andreas +3 more
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Leonhardi Euleri Opera omnia: Editing the works and correspondence of Leonhard Euler [PDF]
Prace Komisji Historii Nauki PAU, 2015 The paper gives an overview on the history and present state of the edition of the complete works of Leonhard Euler (1707–1783). After several failed initiatives in the 19th century, the project began in 1907 with the edition of Euler’s printed works ...
Andreas KLEINERT
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On the solar origin of interplanetary disturbances observed in the vicinity of the Earth [PDF]
Annales Geophysicae, 2003 The solar origin of 40 interplanetary disturbances observed in the vicinity of the Earth between January 1997 and June 1998 is investigated in this paper.
N. Vilmer +4 more
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Simulating observable structures due to a perturbed interstellar medium in front of astrospheric bow shocks in 3D MHD [PDF]
A&A 650, A36 (2021), 2021 Context. While the shapes of many observed bow shocks can be reproduced by simple astrosphere models, more elaborate approaches have recently been used to explain differing observable structures. Aims. By placing perturbations of an otherwise homogeneous interstellar medium in front of the astrospheric bow shock of the runaway blue supergiant $\lambda$
arxiv +1 more source
One-dimensional, surface emitting, disordered Terahertz lasers
APL Photonics, 2020 Quantum cascade lasers are, by far, the most compact, powerful, and spectrally pure sources of radiation at terahertz frequencies, and, as such, they are of crucial importance for applications in metrology, spectroscopy, imaging, and astronomy, among ...
Luca Salemi +6 more
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Introduction to gravitational wave astronomy [PDF]
, 2021 This chapter provides an overview of gravitational wave (GW) astronomy, providing background material that underpins the other, more specialized chapters in this handbook. It starts with a brief historical review of the development of GW astronomy, from Einstein's prediction of GWs in 1916 to the first direct detection in 2015.
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