| Abstract : | All-sky dust maps find several uses, from dereddening photometric data to modeling dust scattered radiation. Existing 2D maps and 3D maps continue to help us understand dust structures in our galaxy. However, GALEX has covered ~75% of the UV sky from its FUV (1539A) and NUV (2316A) photometric bands at high resolution, which allows us to extract dust information at scales less than 6’/pixel. In this work, we study the variations in diffuse background map constructed from co-adding diffuse background data from multiple GALEX visits. Our preliminary analysis suggests that there is no detector noise in the diffuse map, hence we focus on (i) spatial variation and (ii) temporal variation, at NGP in the GALEX FUV band. |
