(Phys.org)—Astronomers have found the lowest-frequency accreting millisecond X-ray pulsar in the X-ray source known as IGR J17062−6143. By analyzing the data provided by the Rossi X-ray Timing Explorer (RXTE) spacecraft, the researchers detected 163.65 Hz X-ray pulsations from this source. The findings were presented Feb. 17 in a paper published on arXiv.org.