A new tool to study galaxy evolution


Imagem em cores verdadeiras da galáxia cometária NGC3991, obtida pelo Sloan Digital Sky Survey (SDSS).

RemoveYoung is a new tool developed by Instituto de Astrofísica e Ciências do Espaço (IA) astronomers Jean Michel Gomes and Polychronis Papaderos. It is designed to suppress, from galaxy images, the luminosity contribution of young stars. This new tool was presented yesterday by Gomes in an advanced course on stellar populations in galaxies, at the Institute of Astronomy of the University of Vienna.

The optical appearance (morphology) of galaxies is the result of their evolutionary history, but how the assembly history of galaxies is imprinted on their present-day morphology is one of the most tantalizing enigmas in extragalactic research.

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