Slow changes in radio scintillation can nudge pulsar timing by billionths of a second

Summary

A SETI Institute-led team studied pulsar PSR J0332+5434 for 10 months, observing significant changes in its radio signal scintillation as it traveled through interstellar gas. The team utilized the Allen Telescope Array to measure frequencies between 900 and 1,956 MHz, noting that these slow changes can affect pulsar timing by billionths of a second, according to Phys.org.