V. I. Marsakova, I. L. Andronov


The method of "asymptotic parabola" fit is described, its analytical properties are discussed in comparison with other types of fits. The method is effective for the (possibly highly asymmetric) signals with practically linear ascending and descending branches connected by relatively short transitions at maximum or minimum, e.g. for the brightness variations of pulsating or eclipsing variables or for the phase variations in stars with abrupt period changes. The method is illustrated by an application to the Mira-type star U Her.

Ключові слова

upper atmosphere; satellite; space weather; atmospheric drag; spectral analysis

Повний текст:

PDF (English)


Andronov I.L.: 1990, Kinematika Fizika Nebesn. Tel, 6, N 6, 87.

Andronov I.L.: 1994, Odessa Astron. Publ, 7, 49.

Andronov I.L.: 1995, Bull Ukr. As. Assoc, 7, 43.

Andronov I.L.: 1997, As. Ap. Suppl, 125, N 1.

Andronov I.L., Shakun L.I.: Ap. Space Set., 169, 237.

Khopolov P.N. (ed.): 1985, General Catalogue of Variable Stars, Moscow, Nauka, 1, 376pp.

Korn G.A., Korn T.M.: 1970, Mathematical Handbook for Scientists and Ingeneers, Moscow, "Nauka".

Schweitzer E.: 1996,

Whittaker E., Robinson G.: 1926, The Calculus of Observations, Blackies & Sons, London.

Copyright (c) 2016 Odessa Astronomical Publications

Creative Commons License
Ця робота ліцензована Creative Commons Attribution-NonCommercial 4.0 International License.