Results 11 to 20 of about 20,590 (100)
A statistical modelling of meteor showers
Вісник Астрономічної школи, 2004 The computer model is built, which one with the help of a method of statistical tests allows on given distributions for meteoriods of a plenty to generate members of orbits N of fragments, and then on the basis of model of motion of the Earth and ...
Yu. M. Gorbanev, S. R. Kimakovsky
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Peculiarities of the Zeeman splitting in lines with small Lande factors in a sunspot spectrum
Вісник Астрономічної школи, 2011 The Zeeman splitting of FeI 6093.66, 6094.419, 5436.3 and 5436.6 Å lines is studied using I±V Stokes profiles related to a big sunspot observed of 25 March 1991 on Echelle spectrograph of horizontal solar telescope of Astronomical Observatory of Kyiv ...
V. G. Lozitsky, A. I. Klyueva
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ACM Transactions on Mathematical Software, 2017 We present a new algorithm for the 2D sliding window discrete Fourier transform. Our algorithm avoids repeating calculations in overlapping windows by storing them in a tree data-structure based on the ideas of the Cooley-Tukey fast Fourier transform ...
Lee F. Richardson, W. Eddy
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The structure of X-ray jet of 3C 273
Вісник Астрономічної школи, 2012 The X-ray internal structure of extragalactic jets is analyzed. The Lucy-Richardson deconvolution algorithm is used to restore the image of X-ray sources. The analysis was done for Chandra observations of core-dominated quasar 3C 273.
A. V. Bogdan +2 more
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Frontiers in Psychology, 2023 Introduction One of the biggest challenges facing students today is procrastination, which is closely related to stress, anxiety and, in the most severe cases, depression.
Antonio Ragusa +7 more
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SpArcFiRe: Enhancing Spiral Galaxy Recognition Using Arm Analysis and Random Forests
Galaxies, 2018 Automated quantification of galaxy morphology is necessary because the size of upcoming sky surveys will overwhelm human volunteers. Existing classification schemes are inadequate because (a) their uncertainty increases near the boundary of classes and ...
Pedro Silva +2 more
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IMA–CNMNC approved mineral symbols
Mineralogical magazine, 2021 Several text symbol lists for common rock-forming minerals have been published over the last 40 years, but no internationally agreed standard has yet been established.
L. Warr
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ALMA’s Acute View of pPNe: Through the Magnifying Glass... and What We Found There
Galaxies, 2018 We present recent Atacama Large Millimeter/submillimeter Array (ALMA)-based studies of circumstellar envelopes (CSEs) around Asymptotic Giant Branch (AGB) stars and pre-Planetary Nebulae (pPNe).
Carmen Sánchez Contreras +3 more
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The earliest arbitration treaty? A reassessment of the Anglo-Norman treaty of 991*
, 2020 Concluded at Rouen in March 991, the Anglo-Norman treaty has traditionally occupied a very small corner of the huge historiography for King AEthelred’s reign as one of the first of the king’s failures to deal with the threat of renewed viking raids. This
J. Benham
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Odessa Astronomical Publications, 2017 Equations of celestial bodies' motion in coordinates are solved by numerical Runge-Kutt method. The coefficients of Runge-Kutt method in the 10th order are obtained.
O. A. Bazyey, I. V. Kara
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