Tomasz Nowakowski is a member of the physics.org community.
Astronomers have found a radio pulsar in a system with a massive companion star. A paper detailing the discovery of the pulsar was published on the arXiv pre-print server.
Nuclear stars emit a beam of radiation. They are usually detected in the form of a short burst of radio emission.
There is a new type of pulsar that is hosting a massive companion. The detection was made using a radio telescope with a wide field of view and high sensitivity.
The researchers wrote that they discovered and initially monitored PSR J2108+4516 with the CHI ME telescope.
The team acquired almost three years of near-daily CHI ME/Pulsar observations from October 20 to September 3. The pulse phase showed that the pulsar was moving at a fast pace.
The observations of PSR J2108+4516 showed that it has a spin period of less than a second and a period of more than two months. The characteristic age of the pulsar was estimated to be around 2.1 million years and the orbital eccentricity was found to be around 0.09. There was a surface magnetic field of over a trillion Gauss.
According to the results, the companion object should have a mass between 11 and 115 solar mass. The companion is a bright OBe star that is about 10,600 light years away. According to the researchers, the star's mass is most likely between 17 and 23 solar mass.
The astronomer said that the sixth young pulsar with a massive non-degenerate companion has been found.
They presented the discovery of a new radio pulsar and the timing of it.
According to the authors of the paper, PSR J2108+4516 is a rare laboratory for the exploration of massive star winds. They want to know if it has a disk, as well as X-ray and gamma-ray studies to look at disk and wind interactions.
More information: Bridget C. Andersen et al, CHIME Discovery of a Binary Pulsar with a Massive Non-Degenerate Companion. arXiv:2209.06895v1 [astro-ph.HE], arxiv.org/abs/2209.06895There is a science network.
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