Indian Scientists Uncover Hidden Structure Around Neutron Star
Indian researchers have made a groundbreaking discovery around the neutron star Centaurus X-3, a high-mass X-ray binary located approximately 24,000 light-years from Earth. A team led by Kinjal Roy, a researcher at Bengaluru's Raman Research Institute (RRI), has found evidence of a rare accretion disk around the neutron star, which challenges the conventional understanding of high-mass X-ray binaries.
The study, published in a recent paper, reveals that the accretion disk is likely the source of changing emission lines observed in the system. The researchers used data from four secondary emission lines and found that their variations were consistent with a structure rotating alongside the pulsar. This discovery has significant implications for how astronomers model Centaurus X-3 and similar systems.
The accretion disk is not typically expected in high-mass X-ray binaries, where stellar-wind capture is the more common mechanism. However, the presence of the disk suggests that the system operates differently from what is generally expected. The findings could lead to a refinement of models of the system and improve understanding of binary pulsars.
The research demonstrates the contributions of Indian astrophysicists to the study of extreme cosmic environments through detailed analysis of astronomical observations. By using changes in radiation to infer structures that cannot be directly imaged, the RRI team has provided new evidence that could sharpen scientific understanding of one of the most extensively studied X-ray binary pulsars.
