Eclipsing X-ray binary 4U 1538-522 investigated with NuSTAR

Using NASA's Nuclear Spectroscopic Telescope Array (NuSTAR), Indian astronomers have observed an eclipsing X-ray binary system known as 4U 1538-522. Results of the observational campaign, published September 26 in the Monthly Notices of the Royal Astronomical Society journal, deliver important insights into the properties and behavior of this pulsar.