Salem Cherenet

Dark Energy Survey

Via the technique of counts of Galaxy clusters

fermilab-sunset

Recently it was discovered that the universe is expanding at accelerated rate. This acceleration could be explained with a concept of Dark Energy. Dark Energy Survey is an imaging survey to make precise measurement of dark energy. The first part of this paper /presentation describes in detail the simulation done to estimate the equation of state parameter, w and its error by comparing it with a simulation bias data. All of the calculations were done using a Mathematica based tool created specifically for this project. Comparing the model bias data given sigma data = 0.3 gave w = -0.716488+-0.098. The second part of this paper focused on the method used to build a GUI that is used to analyze images from CCD cameras. The GUI is mostly stable with some bugs still to be fixed.