Construcción del mapa de momentos de la galaxia NGC-4321 mediante procesamiento de imagen basado en la técnica de flujo de hidrógeno

Abstract

The aim of this work was to obtain information about the physical properties of the galaxy NGC 4321 by applying image processing to its date cube based on the hydrogen flow technique. Using the Phyton programming language in conjunction with some of its libraries and packages, a code was run to obtain the momentum maps, whose physical interpretation was made based on the characteristics of the electromagnetic radiation of hydrogen. The results show that the galaxy NGC 4321 is approaching the Milky Way at a rate of approximately 1410.35 km/s, which, applying Hubble's law, suggests that the galaxy is at 19.32 Mpc. The hydrogen flow technique allowed us to find information on the mass and temperature of the galaxy NGC 4321, whose average values were: 4.3199 × 1010𝑀⨀ and 463445.05 𝐾 respectively. The momentum map 0 showed, descriptively, the mass distribution of the galaxy; momentum map 1 allowed us to deduce the rotation of the galaxy from its recessional velocity and momentum map 2 provided information on the temperature from the spectral radiation. This allows us to conclude that the galaxy NGC 4321 is moving in the direction of the Milky Way and that its mass and temperature parameters agree with the available theoretical information. We propose to further investigate the behaviour of this galaxy in order to verify the results obtained. .