Estudo da radiação eletromagnética em fenômenos astrofísicos

Abstract

Electromagnetic radiation constitutes the primary source of information about the Universe, and it is indispensable for characterizing astrophysical phenomena. This study aims to investigate the physical processes of emission, absorption, and scattering of radiation across different ranges of the electromagnetic spectrum, thereby expanding the scope of a Scientific Initiation project focused on high-energy radiation, specifically X-rays, entitled “Investigation of Electromagnetic Radiation in Astrophysical Phenomena”. Initially, the classical foundations of electromagnetism are discussed, with particular emphasis on Maxwell’s equations. Subsequently, the structure of the electromagnetic spectrum is presented, categorizing its regions according to frequency and wavelength, and detailing the main physical mechanisms involved in the interaction of radiation with matter in astrophysical contexts. The methodology adopts a theoretical-conceptual approach, encompassing analytical descriptions and interpretative models of radiative phenomena within interstellar and intergalactic environments. The main detection and observation instruments, along with the challenges inherent to observational astrophysics, are also discussed. Finally, the study integrates the analysis of radiation-matter interactions with available observational techniques, allowing the correlation between distinct spectral ranges and astrophysical objects responsible for their emission or modification.