The way to explore the Milky Way by using 21cm radio

Abstract

In recent years, more and more scientists have used ratios to explore Milky Way. This paper delves into the importance of 21cm radio astronomy for investigating the structure and evolution of the Milky Way. Through an exhaustive review of the literature, the paper emphasizes the benefits of radio astronomy relative to optical and infrared astronomy and elaborates on the distinct attributes of the 21cm radio wavelength. Fundamental concepts of 21cm radio astronomy, encompassing the Doppler effect, neutral hydrogen examination, and the era of reionization, are explored in detail. The paper underscores the significance of comprehending the Milky Way's structure, dynamics, and matter distribution. Forthcoming developments in the domain, such as cutting-edge radio telescopes, data handling techniques, and interdisciplinary collaborations, are examined, presenting the potential for additional advancements in understanding our home galaxy and the cosmos at large.