View source for Astronomy:GLEAM-X J162759.5−523504.3

{{Short description|Transient astronomical radio source}}
{{Starbox begin|name=GLEAM-X J162759.5−523504.3}}
{{Starbox observe 
|epoch=[[Astronomy:J2000.0|J2000.0]]
|constell=[[Astronomy:Norma (constellation)|Norma (constellation)]]
|ra={{RA|16|27|59.5}}
|dec={{DEC|−52|35|04.3}}
}}
{{Starbox reference|Simbad=GLEAM-X+J162759.5−523504.3}}
{{Starbox end}}

'''GLEAM-X J162759.5-523504.3'''<ref name="10.1038/s41586-021-04272-x"> {{cite journal |title= A radio transient with unusually slow periodic emission |journal= Nature |date= 27 January 2022 |publication-date= 26 January 2022 |url= https://www.nature.com/articles/s41586-021-04272-x |author1=N. Hurley-Walker |author2=X. Zhang |author3=A. Bahramian |author4=S. J. McSweeney |author5=T. N. O’Doherty |author6=P. J. Hancock |author7=J. S. Morgan |author8=G. E. Anderson |author9=G. H. Heald |author10=T. J. Galvin |doi= 10.1038/s41586-021-04272-x |year= 2022 |volume= 601 |pages= 526–530 |number= 601 |pmid= 35082416 |bibcode= 2022Natur.601..526H |s2cid= 246296294 }} </ref> is a transient [[Astronomy:Astronomical radio source|astronomical radio source]], found in 2020, in archival data recorded in 2018 by the [[Astronomy:Murchison Widefield Array|Murchison Widefield Array]].<ref name=CosmosMag-AmalyahHart-20220127> {{cite magazine |url= https://cosmosmagazine.com/space/astronomy/astronomers-mysterious-object/ |title= Mysterious object unlike anything astronomers have seen before |author= Amalyah Hart |publication-date= 27 January 2022 |magazine= Cosmos Magazine }} </ref>

The source was active in radio for about 1 minute every 18 minutes, from January to March 2018, but has not been recorded since.<ref name=CosmosMag-AmalyahHart-20220127/>

== Nature of source ==
It seems somewhat like a [[Astronomy:Astronomical radio source#The Galactic Center|Galactic Center radio transient]] (GCRT) except it is thought to be only about {{convert|4000|light-year|parsec}} distant.<ref name=CosmosMag-AmalyahHart-20220127/>

The radio emissions were [[Physics:Polarization (waves)|polarised]] (as if affected by a [[Physics:Magnetic field|magnetic field]]) so it may be a predicted astrophysical object called an "ultra-long period magnetar".<ref name="10.1093/mnras/staa1783"> {{cite journal |title= Periodicity in recurrent fast radio bursts and the origin of ultralong period magnetars |journal= Monthly Notices of the Royal Astronomical Society |publication-date= 23 June 2020 |url= https://academic.oup.com/mnras/article/496/3/3390/5861343 |author1=P. Beniamini |author2=Z. Wadiasingh |author3=B. D. Metzger |doi= 10.1093/mnras/staa1783 |year= 2020 |volume= 496 |pages= 3390–3401 |number= 496 |doi-access= free |arxiv= 2003.12509 }} </ref><ref name=icrar-r-t-20220127> {{cite web |url= https://www.icrar.org/repeating-transient/ |title= Mysterious Object Unlike Anything Astronomers Have Seen Before |date= 27 January 2022 |publisher= International Centre for Radio Astronomy Research |author= ICRAR }} </ref><ref name="10.1093/mnras/stad208"> {{cite journal |title= Evidence for an abundant old population of Galactic ultra-long period magnetars and implications for fast radio bursts | journal= Monthly Notices of the Royal Astronomical Society |publication-date= 20 January 2023 |url= https://academic.oup.com/mnras/article-abstract/520/2/1872/6994536 |author1=P. Beniamini |author2=Z. Wadiasingh | author3 =J. Hare | author4 = K. M. Rajwade | author5= G. Younes | author6= A. J. van der Horst |  doi= 10.1093/mnras/stad208 | year= 2023 |volume= 520 | issue= 2 |pages= 1872–1894 | doi-access= free |arxiv= 2210.09323 }} </ref>

== See also ==
* [[Astronomy:GPM J1839−10|GPM J1839−10]]
* [[Astronomy:GCRT J1745−3009|GCRT J1745−3009]]
* [[Astronomy:PSR J0901–4046|PSR J0901–4046]]
* [[Astronomy:Rotating radio transient|Rotating radio transients (RRATs)]]

== Further reading ==
* {{cite journal |title= A radio transient with unusually slow periodic emission |journal= Nature |date= 27 January 2022 |publication-date= 26 January 2022 |url= https://www.nature.com/articles/s41586-021-04272-x |author1=N. Hurley-Walker |author2=X. Zhang |author3=A. Bahramian |author4=S. J. McSweeney |author5=T. N. O’Doherty |author6=P. J. Hancock |author7=J. S. Morgan |author8=G. E. Anderson |author9=G. H. Heald |author10=T. J. Galvin |doi= 10.1038/s41586-021-04272-x |year= 2022 |volume= 601 |pages= 526–530 |number= 601 |pmid= 35082416 |bibcode= 2022Natur.601..526H |s2cid= 246296294 }} Not open access.
* {{cite journal |title= Periodicity in recurrent fast radio bursts and the origin of ultralong period magnetars |author1=P. Beniamini |author2=Z. Wadiasingh |author3=B. D. Metzger |journal= Monthly Notices of the Royal Astronomical Society |year= 2020 |volume= 496 |issue= 3 |pages= 3390–3401 |doi= 10.1093/mnras/staa1783 |publication-date=23 June 2020 |doi-access= free |arxiv= 2003.12509 }}
* {{cite journal |title= Evidence for an abundant old population of Galactic ultra-long period magnetars and implications for fast radio bursts | author1=P. Beniamini |author2=Z. Wadiasingh | author3 =J. Hare | author4 = K. M. Rajwade | author5= G. Younes | author6= A. J. van der Horst | journal= Monthly Notices of the Royal Astronomical Society |year= 2023 |volume= 520 |issue= 2 |pages= 1872–1894 |doi= 10.1093/mnras/stad208 |publication-date=20 January 2023 |doi-access= free |arxiv= 2210.09323 }}
* {{cite journal |title= Long-period Pulsars as Evidence of Supernova Fallback Accretion |author1=Ronchi, Michele |author2=Rea, Nanda |author3=Graber, Vanessa |author4=Hurley-Walker, Natasha |journal= The Astrophysical Journal |arxiv= 2201.11704 |bibcode= 2022ApJ...934..184R |date= 27 January 2022 |volume= 934 |issue= 2 |page= 184 |doi= 10.3847/1538-4357/ac7cec |s2cid= 250868925 |doi-access=free }}
* {{cite web |url= https://www.icrar.org/repeating-transient/ |title= Mysterious Object Unlike Anything Astronomers Have Seen Before |date= 27 January 2022 |publisher= International Centre for Radio Astronomy Research |author= ICRAR }}

==References==
{{reflist}}

== External links ==

*{{Cite news |last=Curtin |first=Alice |date=2022-02-16 |title=You'll be a limbo star. How (s)low can you go? |url=https://astrobites.org/2022/02/16/youll-be-a-limbo-star-how-slow-can-you-go/|website=Astrobites |language=en-US}}

{{Sky|16|27|59.5|-|52|35|04.3}}

{{DEFAULTSORT:GLEAM-X J162759.5-523504.3}}
[[Category:Radio astronomy]]
[[Category:Sagittarius (constellation)]]


{{Sourceattribution|GLEAM-X J162759.5−523504.3}}