WE REQUEST 100 KS OF NICER OBSERVATIONS OF THE HIGH MASS X-RAY BINARY SMC X-1 TO INVESTIGATE AND MODEL CHANGES IN ACCRETION STRUCTURE WITH SUPER-ORBITAL CYCLE. SMC X-1 DISPLAYS QUASI-PERIODIC SUPER-ORBITAL MODULATION LIKELY BECAUSE OF INSTABILITIES
$20,359FY2021National Aeronautics and Space AdministrationNASA
California Institute Of Technology, Pasadena CA