Astronomers made a groundbreaking discovery when they captured the first images of a strange S-shaped jet emanating from a neutron star known as Circinus X-1. The one-of-a-kind emission is similar to the shape of a stream of water from a garden sprinkler and is the result of the star’s neutron interaction with its counterpart star. The MeerKAT radio telescope in South Africa captured the images, offering high-resolution insights into the physics of neutron stars.
NASA’s Chandra X-ray Observatory and the Australia Compact Telescope Array identified the youngest X-ray binary ever recorded. (Credit: X-ray: NASA/CXC/Univ. of Wisconsin-Madison/S. Heinz et al; Optical: DSS; Radio: CSIRO/ATNF/ATCA)Scientists may be able to use the findings from the images to uncover the mysteries of the formation of jets and their interactions with the material around them. The S-shaped jet’s similarity to a garden sprinkler disrupts traditional classifications concerning these phenomena. It has also sparked a great deal of curiosity in the astronomy community.
Circinus X-1 belongs to a category of systems called “X-ray binaries,” celestial objects that emit some of the brightest X-rays in the Universe. They come in two flavors, either an extremely dense star full of neutrons, called a neutron star, or a black hole paired with a star. The neutron star or black hole orbits and pulls energy from the companion star.
Circinus X-1 is estimated to be less than 4,600 years old, the youngest X-ray binary ever found. Astronomers have previously identified hundreds of X-ray binaries in the Milky Way, but they are all much older. Circinus X-1 fills a gap in the evolution of these systems, never seen before.
The structure of the jet implies the neutron star system displays resemblances to black hole systems, a finding that could potentially revolutionize our understanding of these cosmic objects. The high-resolution images obtained by the MeerKAT radio telescope present a remarkable opportunity for scientists to delve deeper into the intense physics surrounding neutron stars and advance our knowledge of these perplexing stellar objects.
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