Journal or Publication Title:

Բյուրականի աստղադիտարանի հաղորդումներ: Երևանի աստղադիտարանի բյուլետեն = Сообщения Бюраканской обсерватории. Бюллетень ереванской Астрономической обсерватории = Contributions from the Burakan observatory. Bulletin of the Erevan astronomical observatory

Date of publication:

2024

Volume:

71

Number:

2

ISSN:

2579-2276

Coverage:

402-408

Abstract:

The understanding of intricate, non-linear phenomena within astronomical data is pivotal for the progression of our knowledge of the universe. This paper introduces an innovative method that merges bispectral analysis with the Levenberg–Marquardt (LM) algorithm for processing astronomical signals. The LM algorithm is renowned for its effectiveness in non-linear parameter estimation and model fitting. At the same time, bispectral analysis is adept at identifying and measuring non-linear interactions and phase coupling within signals. By integrating these two techniques, our approach facilitates a comprehensive analysis of astronomical signals, encompassing both modeled and unmodeled non-linearities. This integrated methodology is particularly advantageous in fields such as the exploration of pulsars, binary star systems, exoplanet detection, and active galactic nuclei, where non-linear dynamics exert significant influence. The findings illustrate that this collaborative approach amplifies the identification and delineation of non-linear processes, leading to more precise models and profound insights into complex astronomical phenomena.

Format:

pdf

Identifier:

click here to follow the link ; oai:arar.sci.am:380855

General note:

Communications of the Byurakan Astrophysical Observatory (ComBAO) is a peer-reviewed scientific journal, which publishes research in observational and theoretical astronomy/astrophysics and presents recent advances in these fields. It is being published by the NAS RA V. Ambartsumian Byurakan Astrophysical Observatory (BAO) in English in electronic form. The journal publishes original papers, review papers, brief reports, book reviews, special communications, observational and theoretical results in various fields of astronomy and related sciences, and some editorial notes, including anniversaries and obituaries. Under the heading “Legacy”, the renewed magazine will republish some old articles of high value in English. The heading “Guest articles” will bring to the attention of readers the articles of researchers who are not employees of BAO. ComBAO was founded in 1946 and regularly published in 1946-1990. However, the publication was interrupted because of the economic situation after the disintegration of the Soviet Union in 1991.

Location of original object:

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