What specific structural detail of the galactic bulge has been clarified using X-ray data?

Answer

An X-shape composed of X-ray binaries.

X-ray observations allowed for better resolution of the dense central region, revealing specific energetic structures like an X-shape, which provides insight into the bulge's turbulent history.

What specific structural detail of the galactic bulge has been clarified using X-ray data?
NASAgalaxyastronomyobservationMilky Way