Spinning neutron star gains enormous magnetic fields Published on: 4 February 2025 An international team of scientists have modelled formation and evolution of strongest magnetic fields in the Universe. Low-field magnetars formation Led by scientists from Âé¶¹´«Ã½, University of Leeds and France, y. The researchers identified the Tayler-Spruit dynamo caused by fall back of supernova material as mechanism leading to formation of low-field magnetars. This new work solves the mystery of low-field magnetars formation puzzling scientists since low-field magnetar discovery in 2010. The team used advanced numerical simulations to model the magneto-thermal evolution of these stars, finding that a specific dynamo process within the proto-neutron star can generate these weaker magnetic fields. Glowing spinning neutron star. Elements of this image furnished by NASA. Investigating complicated magnetic fields of neutron stars. Study lead author, Dr Andrei Igoshev, Research Fellow at Âé¶¹´«Ã½’s School of Mathematics, Statistics and Physics, said: “Neutron stars are born in supernova explosions. Most of external layers of massive star are removed during the supernova, but some material falls back making the neutron star to spin faster. Researchers show that this process plays a very important role for formation of magnetic field via the Tayler-Spruit dynamo mechanism. This mechanism was suggested theoretically nearly a quarter of century ago, but it was only recently reproduced using computer simulations. The magnetic field formed via this mechanism is very complicated with internal field inside the start which is much stronger than the external.” Magnetars are known to have enormous magnetic fields which are hundreds trillions times stronger the Earth magnetic fields. Due to these fields magnetars are bright and variable sources of X-ray radiation. Some of less magnetised stars also have similar X-ray emission. These less magnetised stars are known as low-field magnetars. Dynamo is a mechanism which convert plasma motion into magnetic fields. Dr Igoshev is establishing a new research group at Âé¶¹´«Ã½ to further investigate complicated magnetic fields of neutron stars. Reference: Igoshev, A., Barrère, P., Raynaud, R. et al. A connection between proto-neutron-star Tayler–Spruit dynamos and low-field magnetars. Nat Astron (2025). Share: Latest News Scientists unlock hidden driver of inflammatory bowel disease Scientists have linked a key genetic signal in inflammatory bowel disease to an immune response that shuts down inflammation control, enabling faster diagnosis and targeted treatments. published on: 15 June 2026 Funding system risks limiting genuine community collaboration A new policy paper written by researchers at Âé¶¹´«Ã½ warns that the way UK research is funded may be undermining efforts to create genuinely collaborative partnerships with communities. published on: 15 June 2026 Volunteers help turn Whitley Bay beach into maths experiment Members of the public joined mathematicians from Âé¶¹´«Ã½ to create what organisers believe is the largest aperiodic tiling ever attempted on Whitley Bay beach. published on: 15 June 2026 Facts and figures