High Spectral Resolution X-ray Observations of the Evolved Supermassive Stellar Binary System $\hat{I}\cdot$ Carinae - Iron K$\hat{I}\pm$ Band Profile Revealed with XRISM

XRISM Collaboration, Marc Audard, Hisamitsu Awaki +138

The supermassive binary system, $\hat{I}\cdot$ Carinae, is experiencing enormous wind-driven mass loss at a rate unparalleled in the rest of the Galaxy. Their wind-wind collision (WWC) conti…