Please include all intermediate steps.
That the stars emit radiation as a black body, find the total emissive power (E [W/m^2]) emitted by Star A (EsA [W/m^2]) and Star B (EsB [W/m^2]), respectively? The wavelengths associated with UV, Visible, and IR parts of the spectrum are defined in Table 1. Wavelength limits: UV (0.0-0.4 μm), VIS (0.4-0.7 μm), and IR (0.7-100 μm). Calculate the fraction of solar emission for Star A and Star B that lies in the UV, Visible, and IR regions. Assuming the planets are the same size and distance from Earth, which star will be the brightest to an observer on Earth? Explain your reasoning.