Text: Justin Myles Illustration: Dimitrios Tanoglidis The use of color and brightness of galaxies to determine distance is described in these two papers: https://t.co/joOHRc1QXc https://t.co/hgMEOMbgsG
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RT @theDESurvey: We put filters on DECam to measure the colour of far far away galaxies and determine their redshift 🌈📏 #ThisIsDES Full…
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Além das formas das galáxias, é fundamental conhecer a distância delas com precisão, e para isso usamos as cores das galáxias. De uma forma geral, quanto mais distantes, mais vermelhas as galáxias, por conta da expansão do universo. https://t.co/1bvmtobWlW
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RT @theDESurvey: We put filters on DECam to measure the colour of far far away galaxies and determine their redshift 🌈📏 #ThisIsDES Full…