Research investigates the latest outburst of pulsar SAX J1808.4−3658

Using the Neutron Star Interior Composition Explorer (NICER) onboard the International Space Station (ISS), an international team of astronomers has inspected the recent outburst of an accreting millisecond X-ray pulsar known as SAX J1808.4−3658. Results of the study, published December 19 on the preprint server arXiv, shed more light on the nature of this source.