CEERS-93316

CEERS-93316 is a high-redshift galaxy with a spectroscopic redshift z=4.9. [3] Notably, the redshift that was initially reported was photometric (z = 16.4), and would have made CEERS-93316 the earliest and most distant known galaxy observed.[1][6][7][8] As of June 2023, the article containing the spectroscopic measurement has not yet been peer-reviewed and published in a journal.

CEERS-93316
Location of the CEERS-93316 galaxy is in the upper just right-of-center area of the Boötes constellation.
Observation data (J2000 epoch)
ConstellationBoötes[1][2]
Right ascension14h 19m 39.48s[1]
Declination52° 56′ 34.92″[1]
Redshift4.912±0.001[3]
Distance
Other designations
CR2-z16-1[5]

CEERS-93316 has a light-travel distance (lookback time) of 12.6 billion years, and, due to the expansion of the universe, a present proper distance of 25.7 billion light-years.[4]

Discovery

The candidate high-redshift galaxy CEERS-93316 (RA:14:19:39.48 DEC:+52:56:34.92), in the Boötes constellation,[1][2] was discovered by the CEERS imaging observing program using the Near Infrared Camera of the James Webb Space Telescope (JWST) in July 2022.[1][6][7][8] CEERS stands for "Cosmic Evolution Early Release Science Survey", and is a deep- and wide-field sky survey program developed specifically for JWST image studies, and is conducted by the CEERS Collaboration.[7][8][9]

See also

References
  1. Donnan, C. T.; et al. (November 2022). "The evolution of the galaxy UV luminosity function at redshifts z ≃ 8 - 15 from deep JWST and ground-based near-infrared imaging". Monthly Notices of the Royal Astronomical Society. 518 (4): 6011–6040. arXiv:2207.12356. Bibcode:2023MNRAS.518.6011D. doi:10.1093/mnras/stac3472.
  2. Staff (2008). "Finding the constellation which contains given sky coordinates". DJM.cc. Retrieved 4 August 2022.
  3. Haro, Pablo Arrabal (2023). "Confirmation and refutation of very luminous galaxies in the early Universe". Nature. arXiv:2303.15431. doi:10.1038/s41586-023-06521-7. PMID 37579792. S2CID 257766818.
  4. Wright, Edward L. (2022). "Ned Wright's Javascript Cosmolgy Calculator". University of California, Los Angeles. Retrieved 17 April 2023. (H0=67.4 and OmegaM=0.315 (see Table/Planck2018 at "Lambda-CDM model#Parameters" )
  5. Harikane, Yuichi; et al. (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:2208.01612. Bibcode:2023ApJS..265....5H. doi:10.3847/1538-4365/acaaa9. S2CID 251253150.
  6. Amos, Jonathan (26 July 2022). "Scottish astronomers push James Webb deeper back in time". BBC News. Retrieved 4 August 2022.
  7. Tognetti, Laurence (2 August 2022). "The record for the farthest galaxy was just broken again, now just 250 million years after the Big Bang". Universe Today. Retrieved 3 August 2022.
  8. Turner, Ben (1 August 2022). "Webb space telescope has just imaged another most-distant galaxy, breaking its record after a week". Live Science. Retrieved 3 August 2022.
  9. Clery, Daniel (9 August 2022). "Webb telescope reveals unpredicted bounty of bright galaxies in early universe - Star formation after the big bang appears much faster than models had forecast". Science. doi:10.1126/science.ade3381. Retrieved 11 August 2022.
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