KHz QPOs in LMXBs, relations between different frequencies and compactness of stars

Taparati Gangopadhyay, Xiang-Dong Li, Subharthi Ray +2

We suggest that the mass of four compact stars SAX J1808.4$-$3658, KS 1731$-$260, SAX J1750.8$-$2900 and IGR J17191$-$2821 can be determined from the difference in the observed kil…