Preliminary Study of Isolated Spiral Galaxies Using The Bidimentional Fast Fourier Transform

We conducted a morphological analysis of the spiral structure in two isolated spiral galaxies: NGC 2756 and NGC 2776. The primary objective of this research is to gain a deeper understanding of how spiral structure is distributed in disk galaxies. To achieve this, we employed the two-dimensional fast Fourier transform method and conducted a comprehensive analysis of the Fourier spectra and radial density functions (RDF) to examine their patterns and characteristics. The results indicate that the main mode of the spiral structure is m = 2. However, using RDFs, we identified that other modes may be relevant in certain regions of the galactic disk, such as m = 3. This result suggests the existence of multiple spiral structures depending on the analyzed region.

• Fecha de publicación: 2023
• Institución: Universidad Pedagógica y Tecnológica de Colombia
• Repositorio: RiUPTC: Repositorio Institucional UPTC
• Idioma: spa
• OAI Identifier: oai:repositorio.uptc.edu.co:001/15411
• Acceso en línea: https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/17425; https://repositorio.uptc.edu.co/handle/001/15411
• Palabra clave: Estructura espiral, Espectros de Fourier; Spiral Structure, Fourier Transform.
• License: http://purl.org/coar/access_right/c_abf2