Astronomers in China have reported gamma-ray pulsations from PSR J0435+3233, a recently identified millisecond pulsar studied with data from NASA's Fermi gamma-ray space telescope. The finding adds an important high-energy signal to the picture of this fast-spinning object and helps confirm its extreme nature.
According to the report, PSR J0435+3233 rotates once every 3.2 milliseconds. That makes it one of the rapidly spinning pulsars of interest to researchers studying how neutron stars emit radiation across different parts of the spectrum. The object is located about 3,900 light-years away, relatively close in astronomical terms.
The newly detected gamma-ray pulsations show that the pulsar is not only visible through its rapid timing behavior but also through high-energy emission. That matters because gamma-ray observations can reveal how particles are accelerated around pulsars and how their beams are oriented and detected from Earth.
By using Fermi data to investigate PSR J0435+3233, the team has expanded what is known about this source soon after its identification. The result gives astronomers another promising millisecond pulsar to compare with similar systems as they work to better understand neutron stars, extreme rotation, and gamma-ray emission.
