Zalya

Zalya is a black widow system in the Arcus Nebula, consisting of the pulsar Galya and the substellar companion Zanhy. Due to its nature, its likely that Zalya is also an eclipsing binary. Zalya is also possibly one of the most exotic systems to host a planet, since a candidate object was discovered in the system orbiting both stars.

Stellar system
Zalya is one of the most compact systems known, as the two components are separated by just 530 thousand kilometers, closer than the sizes of many neighbour stars. Its also an example of an exotic type of "planetary" system classed as black widow systems, since Zanhy is close enoughh for its material to be blasted away.

Galya
Galya is the primary (by a longshot) component of the system, and its an unusually massive pulsar. With a estimated mass of 2.1±0.07 M Sun, it pushes the boundaries of the Tolman–Oppenheimer–Volkoff limit. Its also the most massive neutron star with a constrained mass known to date. Its jets are small from up-close, since they are distorted and dispersed past a certain point beyond visibility in visible light.

Zanhy
Zanhy is the secondary component of the system. At around 0.04 M Sun (or around 41 M Jup ), its likely a brown dwarf with a spectral type of T3.6. Not much is known about its internal structure, and it only has a single prominent band visible from afar.