GLEAM J0917-0012

GLEAM J0917-001
Observation data
Redshiftz=2-8 (likely 7)
Characteristics
TypeRadio galaxy
Notable featuresPotentially that most distant radio galaxy with a young but powerful jet quenching star formation

GLEAM J0917-0012 is a candidate radio galaxy located at ultra high uncertain redshift distances. It could exist somewhere between redshift distances of z=2 to z=8 potentially making it the most distant radio galaxy. The most likely distance seems to be around redshift z=7.[1][2] For reference, the farthest confirmed radio galaxy is located at a distance of z=5.72 and named TGSS J1530+1049.[3]

Jet

The jet of GLEAM J0917-0012 is only around 50 thousand years old making it one of the youngest jets in the universe's cosmic noon. It is also very powerful being one of the most powerful jets discovered in the cosmic noon. This jet is speculated to be on its way to quenching star formation in the galaxy. The jet is being produced by a large black hole with a mass tentatively placed with a mass of 109 solar masses.[4]

References

  1. ^ Seymour, N.; Drouart, G.; Noirot, G.; Broderick, J. W.; Turner, R. J.; Shabala, S. S.; Stern, D. K.; Bellstedt, S.; Driver, S.; Davies, L.; De Breuck, C. A.; Afonso, J. A.; Vernet, J. D. R.; Galvin, T. J. (2022). "HST WFC3/Grism observations of the candidate ultra-high-redshift radio galaxy GLEAM J0917-0012". Publications of the Astronomical Society of Australia. 39. arXiv:2203.01349. Bibcode:2022PASA...39...16S. doi:10.1017/pasa.2022.4.
  2. ^ Drouart, Guillaume; Seymour, Nick; Broderick, Jess W.; Afonso, José; Chhetri, Rajan; De Breuck, Carlos; Emonts, Bjorn; Galvin, Tim J.; Lehnert, Matthew D.; Morgan, John; Stern, Daniel; Vernet, Joël; Wright, Nigel (2021). "The nature and likely redshift of GLEAM J0917-0012". Publications of the Astronomical Society of Australia. 38. arXiv:2111.08103. Bibcode:2021PASA...38...49D. doi:10.1017/pasa.2021.35.
  3. ^ Saxena, A; Marinello, M; Overzier, R A; Best, P N; Röttgering, H J A; Duncan, K J; Prandoni, I; Pentericci, L; Magliocchetti, M; Paris, D; Cusano, F; Marchi, F; Intema, H T; Miley, GK (2018-10-21). "Discovery of a radio galaxy at z = 5.72". Monthly Notices of the Royal Astronomical Society. 480 (2): 2733–2742. arXiv:1806.01191. doi:10.1093/mnras/sty1996. ISSN 0035-8711.
  4. ^ "INSPIRE". inspirehep.net. Retrieved 2025-06-11.