| F200DB-045 | |
|---|---|
| Observation data (J2000 epoch) | |
| Redshift | 20.4[1][2] |
F200DB-045 is a candidate high-redshift galaxy, with an estimated redshift of approximately z = 20.4,[1][2] corresponding to 168 million years after the Big Bang.[3] If confirmed, it would be one of the earliest and most distant known galaxies observed.
F200DB-045 would have a light-travel distance (lookback time) of 13.7 billion years, and, due to the expansion of the universe, a present proper distance of 36.1 billion light-years.[3]
Nonetheless, the redshift value of the galaxy presented by the procedure in one study[1] may differ from the values presented in other studies using different procedures.[2][4]
- ^ a b c Adams, N.J.; et al. (January 2023). "Discovery and properties of ultra-high redshift galaxies (9 < z < 12) in the JWST ERO SMACS 0723 Field". Monthly Notices of the Royal Astronomical Society. 518 (3): 4755–4766. arXiv:2207.11217. doi:10.1093/mnras/stac3347. Retrieved 2 January 2023.
- ^ a b c Yan, Haojing; et al. (January 2023). "First Batch of z ≈ 11–20 Candidate Objects Revealed by the James Webb Space Telescope Early Release Observations on SMACS 0723-73". The Astrophysical Journal Letters. 942 (L9): 20. arXiv:2207.11558. Bibcode:2023ApJ...942L...9Y. doi:10.3847/2041-8213/aca80c.
- ^ a b Wright, Edward L. (2022). "Ned Wright's Javascript Cosmolgy Calculator". University of California, Los Angeles. Retrieved 24 November 2022. (H0=67.4 and OmegaM=0.315 (see Table/Planck2018 at "Lambda-CDM model#Parameters" )
- ^ Harikane, Yuichi; Ouchi, Masami; Oguri, Masamune; Ono, Yoshiaki; Nakajima, Kimihiko; Isobe, Yuki; Umeda, Hiroya; Mawatari, Ken; Zhang, Yechi (2023). "A Comprehensive Study of Galaxies at z ∼ 9–16 Found in the Early JWST Data: Ultraviolet Luminosity Functions and Cosmic Star Formation History at the Pre-reionization Epoch". The Astrophysical Journal Supplement Series. 265 (1): 5. arXiv:2208.01612v3. Bibcode:2023ApJS..265....5H. doi:10.3847/1538-4365/acaaa9.