TGSS J1530+1049
| TGSS J1530+1049 | |
|---|---|
.jpg) Here is a two dimensional spectrum with a strong emission line from GMOS of TGSS J1530+1049. | |
| Observation data | |
| Constellation | Serpens |
| Redshift | 5.72 |
| Distance | 12 billion ly |
| Characteristics | |
| Type | High redshift radio galaxy |
| Mass | 10^10.5 solar mass M☉ |
| Notable features | Most distant radio galaxy discovered to date |
TGSS J1530+1049 is the most distant radio galaxy, discovered at a redshift distance of z=5.72 placing it close to the epoch of reionization[1] and classifying it has a high redshift radio galaxy (HzRG). The galaxy has a size of 3.5 kiloparsecs, comparable to radio galaxies at z>4 and has a luminosity of 5.7x10^42 ergs, making it comparable in luminosity to non-radio galaxies located at similar redshift distances.[2] Another radio galaxy named GLEAM J0917-0012 may be farther but its distance is undetermined (likely z=7).[3]
TGSS J1530+1049 is likely early in its phase of evolution and still assembling which was determined due to its relatively low stellar mass compared to other radio galaxies (10^10.5 solar masses).[2] The radio emission is powered by a supermassive black hole (SMBH) consuming material from the surrounding environment. This galaxy's massive black hole provides evidence that black holes had grown very quickly to supermassive sizes in the early universe.[4]
References
[edit]- ^ "Astronomers discover most distant radio galaxy - UPI.com". UPI. Retrieved 2025-06-11.
- ^ a b 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.
- ^ 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.
- ^ info@noirlab.edu. "Gemini Confirms the Most Distant Radio Galaxy". www.noirlab.edu (in Spanish). Retrieved 2025-06-11.
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