Extragalactic UV radiation at different galactic latitudes

Abstract

We have studied extragalactic UV radiation at two different galactic latitudes using Galaxy Evolution Explorer and Spitzer-SWIRE space observations. The total extragalactic contributions are estimated at the fields of ELAIS N2, ELAS SI regions of the sky by using aperture photometric technique. The number counts of UV sources in two ultraviolet bands were taken from the produced catalog and calculated their fluxes in the absolute magnitude of 18-28ranges. Results obtained here are consistent with existing models of galaxy evolution and different factors are identified that might affect the total extragalactic radiation. The extragalactic UV radiation to diffuse background at ELAIS N2 and ELAIS S1 were obtained as 35 ± 5 photons sr-1 s−1 cm−2 Å−1 , 23 ± 5 photons sr-1 s−1 cm−2 Å−1 & in FUV and 42 ± 8 photons sr-1 s−1 cm−2 Å−1 , 30 ± 15 photons sr-1 s−1 cm−2 Å−1 in NUV band respectively.