A New Class of High‐Mass X‐Ray Binaries: Implications for Core Collapse and Neutron Star Recoil
A New Class of High‐Mass X‐Ray Binaries: Implications for Core Collapse and Neutron Star Recoil
We investigate an interesting new class of high-mass X-ray binaries (HMXBs) with long orbital periods (Porb > 30 days) and low eccentricities (e ≲ 0.2). The orbital parameters suggest that the neutron stars in these systems did not receive a large impulse, or "kick," at the time of formation. After …