The Most MYSTERIOUS Object in the Universe

Although I am not an expert in this field , I was wondering , whether infrared signal is enough to detect a brown dwarf. So here is what I think : The emission spectrum of usual stars mostly deviates from blackbody spectrum because of lots of weird stuff going on in them other than thermal emission but in the case of brown dwarfs, since there is no nuclear fusion and the density not enough to make weird stuffs happen , I think it is safe to assume brown dwarf as a blackbody and then its lambda max(wavelength at maximum emission) can be used to calculate temperature . So basically to confirm that some body is a brown dwarf , it is important to analyse the whole spectrum and then match it with blackbody spectrum.