The Impact of Astrophysical Priors on Parameter Inference for GW230529

Understand

We investigate the effects of prior selection on the inferred mass and spin parameters of the neutron star-black hole merger GW230529\_181500.

• Specifically, we explore models motivated by astrophysical considerations, including massive binary and pulsar evolution.
• We examine mass and spin distributions of neutron stars constrained by radio pulsar observations, alongside black hole spin observations from previous gravitational wave detections.
• We show that the inferred mass distribution highly depends upon the spin prior.