Astronomy:CEERS-93316

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Short description: Possibly one of the oldest galaxies observed
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 ascension 14h 19m 39.48s[1]
Declination52° 56′ 34.92″[1]
Redshift4.912±0.001[3]
Distance
  • ≈25.7 billion ly (7.9 billion pc)
    Script error: No such module "in5".(present proper distance)[4]
  • ≈12.6 billion ly (3.9 billion pc)
    Script error: No such module "in5".(light-travel distance)[4]
Other designations
CR2-z16-1[5]

CEERS-93316 is a high-redshift galaxy with a spectroscopic redshift z=4.9. [3] Significantly, 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]

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. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Donnan, C. T. (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. doi:10.1093/mnras/stac3472. Bibcode: 2023MNRAS.518.6011D. 
  2. ↑ 2.0 2.1 Staff (2008). "Finding the constellation which contains given sky coordinates". DJM.cc. http://djm.cc/constellation.html. Retrieved 4 August 2022. 
  3. ↑ 3.0 3.1 Haro, Pablo Arrabal (2023). "Confirmation and refutation of very luminous galaxies in the early Universe". Nature 622 (7984): 707–711. doi:10.1038/s41586-023-06521-7. PMID 37579792. Bibcode: 2023Natur.622..707A. 
  4. ↑ 4.0 4.1 4.2 Wright, Edward L. (2022). "Ned Wright's Javascript Cosmolgy Calculator". University of California, Los Angeles. https://www.astro.ucla.edu/~wright/CosmoCalc.html. Retrieved 17 April 2023.  (H0=67.4 and OmegaM=0.315 (see Table/Planck2018 at "Lambda-CDM model" )
  5. ↑ Harikane, Yuichi (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. doi:10.3847/1538-4365/acaaa9. Bibcode: 2023ApJS..265....5H. 
  6. ↑ 6.0 6.1 Amos, Jonathan (26 July 2022). "Scottish astronomers push James Webb deeper back in time". BBC News. https://www.bbc.com/news/science-environment-62311562. Retrieved 4 August 2022. 
  7. ↑ 7.0 7.1 7.2 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. https://www.universetoday.com/156987/the-record-for-the-farthest-galaxy-just-got-broken-again-now-just-250-million-years-after-the-big-bang/. Retrieved 3 August 2022. 
  8. ↑ 8.0 8.1 8.2 Turner, Ben (1 August 2022). "Webb space telescope has just imaged another most-distant galaxy, breaking its record after a week". Live Science. https://www.livescience.com/james-webb-images-most-distant-galaxy-again. 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. https://www.science.org/content/article/webb-telescope-reveals-unpredicted-bounty-bright-galaxies-early-universe. Retrieved 11 August 2022. 

External links

Coordinates: Sky map 14h 19m 39.48s, +52° 56′ 34.92″



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