On the Optimization of Flux Estimates

Neutron Stars and Black Holes in X-ray Binaries

“…Some disturbance of the spectrum, indicative of anisotropic gas flow near the primary may show up as variable emission/absorption components, particularly in Hα, Hβ, He II λ4686, and the C III-N III λ4630-50 complex. However, when the latter two lines are strongly in emission (see e.g., Hensberge et al 1973) this is likely due to a very high temperature and luminosity of the primary (e.g., Of characteristics), and not to the presence of the X-ray source. Except for the strong resonance lines of abundant ions, the same is true for the UV spectra of HMXB.…”