UNCOVER-z12

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UNCOVER-z12
UNCOVER-z12portrait.jpeg
UNCOVER-z12, as seen in November of 2023
Observation data (J2000 epoch)
Constellation Sculptor
Right ascension 3.57087
Declination −30.40158
Redshift 12.393
Distance 32.21 gly (estimated)
Characteristics
Type Lyman-break galaxy

UNCOVER-z12 is a high-redshift Lyman-break galaxy discovered by the James Webb Space Telescope (JWST) [1] during NIRCam imaging for the JWST Ultradeep NIRSpec and NIRCam Observations before the Epoch of Reionization (UNCOVER) project [2] in November 2023. UNCOVER-z12 is within the Abell 2744 supercluster in the constellation Sculptor. [3] It is the 5th-most distant object ever discovered as of 2024, and is estimated to be 32.21 giga-lightyears from Earth.

Contents

Morphology

UNCOVER-z12 is a Lyman-Break galaxy. Due to the recent discovery date, not much more is known about the galaxy itself. [3]

Discovery

UNCOVER-z12 was first observed when large amounts of gravitational lensing from Abell 2744 made the galaxy visible. Abell 2744 is around 3.5 billion light-years away from the Milky Way. [4]

The gravity of Abell 2744 warps the fabric of space-time sufficiently to magnify the light of more faraway galaxies. The James Webb Space Telescope used the gravitational lensing to discover UNCOVER-z12, and further studies of deep galaxies located within Abell 2744 are currently ongoing. [4]

UNCOVER-z13

UNCOVER-z13 is a second, more far-away galaxy that was located on November 14, 2023, using the same systems. [5] It has a redshift of 13, making it the 3rd most distant object ever discovered in the observable universe. [1]

See also

References

  1. 1 2 Bonora, Elisabetta (2023-11-21). "Confermate due galassie lontane lontane" [Two Far, Far Away Galaxies Confirmed]. Alive Universe Today (in Italian). Retrieved 2024-04-18.
  2. ↑ Cooper, Keith (2023-11-14). "James Webb Space Telescope finds 2 of the most distant galaxies ever seen". Space.com . Retrieved 2024-04-18.
  3. 1 2 Wang, Bingjie; Fujimoto, Seiji; Labbé, Ivo; Furtak, Lukas J.; Miller, Tim B.; Setton, David J.; Zitrin, Adi; Atek, Hakim; Bezanson, Rachel; Brammer, Gabriel; Leja, Joel; Oesch, Pascal A.; Price, Sedona H.; Chemerynska, Iryna; Cutler, Sam E. (November 2023). "UNCOVER: Illuminating the Early Universe—JWST/NIRSpec Confirmation of z > 12 Galaxies". The Astrophysical Journal Letters . 957 (2): L34. arXiv: 2308.03745 . Bibcode:2023ApJ...957L..34W. doi: 10.3847/2041-8213/acfe07 . ISSN   2041-8205.
  4. 1 2 Urrutia, Doris Elín (2024-02-20). "Meet Two of the Oldest Galaxies in the Universe". Inverse . Retrieved 2024-04-18.
  5. ↑ McCormick, Gail (November 13, 2023). "Second-most distant galaxy discovered using James Webb Space Telescope". Eberly College of Science . Retrieved 2024-04-18.
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