GLEAM-X J162759.5−523504.3

GLEAM-X J162759.5-523504.3[1] is a transient astronomical radio source, found in 2020, in archival data recorded in 2018 by the Murchison Widefield Array.[2]

The source was active in radio for about 1 minute every 18 minutes, from January to March 2018, but has not been recorded since.[2]

Nature of source

It seems somewhat like a Galactic Center radio transient (GCRT) except it is thought to be only about 4,000 light-years (1,200 pc) distant.[2]

The radio emissions were polarised (as if affected by a magnetic field) so it may be a predicted astrophysical object called an "ultra-long period magnetar".[3][4]

See also

Further reading
  • N. Hurley-Walker; X. Zhang; A. Bahramian; S. J. McSweeney; T. N. O’Doherty; P. J. Hancock; J. S. Morgan; G. E. Anderson; G. H. Heald; T. J. Galvin (27 January 2022). "A radio transient with unusually slow periodic emission". Nature (published 26 January 2022). 601 (601): 526–530. Bibcode:2022Natur.601..526H. doi:10.1038/s41586-021-04272-x. PMID 35082416. S2CID 246296294.{{cite journal}}: CS1 maint: date and year (link) Not open access.
  • P. Beniamini; Z. Wadiasingh; B. D. Metzger (2020). "Periodicity in recurrent fast radio bursts and the origin of ultralong period magnetars". Monthly Notices of the Royal Astronomical Society (published 23 June 2020). 496 (3): 3390–3401. doi:10.1093/mnras/staa1783.
  • Ronchi, Michele; Rea, Nanda; Graber, Vanessa; Hurley-Walker, Natasha (27 January 2022). "Long-period Pulsars as Evidence of Supernova Fallback Accretion". The Astrophysical Journal. 934 (2): 184. arXiv:2201.11704. Bibcode:2022ApJ...934..184R. doi:10.3847/1538-4357/ac7cec. S2CID 250868925.
  • ICRAR (27 January 2022). "Mysterious Object Unlike Anything Astronomers Have Seen Before". International Centre for Radio Astronomy Research.

References
  1. N. Hurley-Walker; X. Zhang; A. Bahramian; S. J. McSweeney; T. N. O’Doherty; P. J. Hancock; J. S. Morgan; G. E. Anderson; G. H. Heald; T. J. Galvin (27 January 2022). "A radio transient with unusually slow periodic emission". Nature (published 26 January 2022). 601 (601): 526–530. Bibcode:2022Natur.601..526H. doi:10.1038/s41586-021-04272-x. PMID 35082416. S2CID 246296294.{{cite journal}}: CS1 maint: date and year (link)
  2. Amalyah Hart (27 January 2022). "Mysterious object unlike anything astronomers have seen before". Cosmos Magazine.
  3. P. Beniamini; Z. Wadiasingh; B. D. Metzger (2020). "Periodicity in recurrent fast radio bursts and the origin of ultralong period magnetars". Monthly Notices of the Royal Astronomical Society (published 23 June 2020). 496 (496): 3390–3401. doi:10.1093/mnras/staa1783.
  4. ICRAR (27 January 2022). "Mysterious Object Unlike Anything Astronomers Have Seen Before". International Centre for Radio Astronomy Research.
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