[2][4][5] The binary is in an eccentric orbit that causes variable accretion rates due to gravitational interactions with the disk.

During the furthest point in the orbit of the binary (apastron), matter is dragged from the inner disk border into the gap.

The material forms accretion streams that fill ring-like structures around each component of the binary.

At the closest point in the orbit (periastron), the ring-like structures come into contact, leading to an angular momentum loss and thus producing an accretion outburst.

[4][10] The spectrum of the stars shows that their atmosphere is overabundant in the chemical elements yttrium, barium, and lanthanum.