UNCOVER-z12
| UNCOVER-z12 | |
|---|---|
 UNCOVER-z12, as seen in November of 2023 | |
| Observation data (J2000 epoch) | |
| Constellation | Sculptor |
| Right ascension | 3.57087 |
| Declination | −30.40158 |
| Redshift | z = 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.
Morphology
[edit]UNCOVER-z12 is a Lyman-Break galaxy. Due to the recent discovery date, not much more is known about the galaxy itself.[4]
Discovery
[edit]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.[5]
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.[6]
UNCOVER-z13
[edit]UNCOVER-z13 is a second, more far-away galaxy that was located on November 14, 2023, using the same systems.[7] It has a redshift of 13, making it the 3rd most distant object ever discovered in the observable universe.[8]
See also
[edit]- List of the most distant astronomical objects
- Maisie's Galaxy, another extremely distant galaxy
- GLASS-z12, an extremely distant galaxy with a similar redshift
References
[edit]- ^ Bonora, Elisabetta (2023-11-21). "Confermate due galassie lontane lontane". www.aliveuniverse.today (in Italian). Retrieved 2024-04-18.
- ^ Keith Cooper (2023-11-14). "James Webb Space Telescope finds 2 of the most distant galaxies ever seen". Space.com. Retrieved 2024-04-18.
- ^ 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.
- ^ 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.
- ^ "Meet Two of the Oldest Galaxies in the Universe". Inverse. 2024-02-20. Retrieved 2024-04-18.
- ^ "Meet Two of the Oldest Galaxies in the Universe". Inverse. 2024-02-20. Retrieved 2024-04-18.
- ^ "Second-most distant galaxy discovered using James Webb Space Telescope | Eberly College of Science". science.psu.edu. Retrieved 2024-04-18.
- ^ Bonora, Elisabetta (2023-11-21). "Confermate due galassie lontane lontane". www.aliveuniverse.today (in Italian). Retrieved 2024-04-18.
.png){kind=spacer}
