In the single degenerate(SD) scenario for type Ia supernovae(SNe Ia) ,a mass-accreting white dwarf is expected to experience a supersoft X-ray source(SSS) phase
We present the orbital X-ray modulation study of three high mass X-ray binary systems,IGR J18027-2016,IGR J18483-0311 and IGR J16318-4848,using data obtained wi