Current Research
Unveiling the Nature of Compact Objects in Non-pulsating HMXBs in the Small Magellanic Cloud
My current research focuses on unveiling the nature of compact objects in the non-pulsatinng high mass X-ray binary population of the Small Magellanic Cloud. These systems provide a unique opportunity to investigate the evolution of massive binary systems which may eventually lead to compact object binaries that are potential sources of gravitational waves.
Scientific Motivation
While pulsating HMXBs provide direct evidence for the presence of neutron stars through their coherent X-ray pulsations, identifying the nature of the compact object in non-pulsating HMXBs is considerably more challenging. The absence of detectable pulsations does not, by itself, distinguish between a neutron star and a black hole, making these systems particularly important for understanding the diversity and evolution of compact objects in High mass binary systems.
Scientific Questions
Why have no Be-BH binaries been observationally confirmed despite their predicted existence from binary-evolution models?
If non-pulsating HMXBs host black-hole accretors, why are they predominantly X-ray faint and what accretion mechanisms can account for their observed luminosities?
Could these systems represent an atypical population of neutron star HMXBS with accretion properties distinct from those of the classical, pulsating BeXRBs?