JADES-GS-z14-0
| JADES-GS-z14-0 | |
|---|---|
| JADES-GS-z14-0 appears as a red blob highlighted by an arrow in this image by NIRCam. The white object at its upper left is a foreground galaxy designated as NIRCam ID 183349 at z = 3.475. | |
| Observation data (J2000 epoch) | |
| Constellation | Fornax |
| Right ascension | 03h 32m 36.89s |
| Declination | −27° 46′ 49.33″ |
| Redshift | 14.32+0.08 −0.20 |
| Characteristics | |
| Type | Lyman-break galaxy |
JADES-GS-z14-0 is a high-redshift Lyman-Break galaxy in the constellation Fornax that was discovered in 2024 using NIRCam as part of the JWST Advanced Deep Extragalactic Survey (JADES) program.[1] [2] It has a redshift of 14.32, making it the most distant galaxy and astronomical object ever discovered.
Discovery
[edit ]JADES-GS-z14-0 was observed using the James Webb Space Telescope's Near-Infrared Spectrograph (NIRSpec) in 2024,[3] and it measured a redshift of 14.32.[4] Its age, size, and luminosity added to a growing body of evidence that current theories of early star and galaxy formation are incomplete.[5]
Characteristics
[edit ]JADES-GS-z14-0 is 1600 light years wide and very luminous.[5] Spectroscopic analysis revealed the presence of strong ionized gas emissions, including hydrogen and oxygen.[4]
Further observations
[edit ]The initial identification of JADES-GS-z14-0 came from imaging data obtained with JWST’s Near-Infrared Camera (NIRCam). The high-redshift hypothesis was confirmed through multiple spectroscopic observations with NIRSpec. Additionally, observations using JWST's Mid-Infrared Instrument (MIRI) detected the galaxy at longer wavelengths, which support the extreme distance at which JADES-GS-z14-0 is located.[4]
See also
[edit ]- JADES-GS-z13-0, the former record-holder for furthest galaxy
- List of the most distant astronomical objects
References
[edit ]- ^ Cesari, Thaddeus (2024年05月30日). "NASA's James Webb Space Telescope Finds Most Distant Known Galaxy". James Webb Space Telescope. Retrieved 2024年06月05日.
- ^ Carniani, Stefano; Hainline, Kevin; D'Eugenio, Francesco; Eisenstein, Daniel J.; Jakobsen, Peter; Witstok, Joris; Johnson, Benjamin D.; Chevallard, Jacopo; Maiolino, Roberto; Helton, Jakob M.; Willott, Chris; Robertson, Brant; Alberts, Stacey; Arribas, Santiago; Baker, William M.; Bhatawdekar, Rachana; Boyett, Kristan; Bunker, Andrew J.; Cameron, Alex J.; Cargile, Phillip A.; Charlot, Stéphane; Curti, Mirko; Curtis-Lake, Emma; Egami, Eiichi; Giardino, Giovanna; Isaak, Kate; Ji, Zhiyuan; Jones, Gareth C.; Maseda, Michael V.; Parlanti, Eleonora; Rawle, Tim; Rieke, George; Rieke, Marcia; Del Pino, Bruno Rodríguez; Saxena, Aayush; Scholtz, Jan; Smit, Renske; Sun, Fengwu; Tacchella, Sandro; Übler, Hannah; Venturi, Giacomo; Williams, Christina C.; Willmer, Christopher N. A. (28 May 2024). "Spectroscopic confirmation of two luminous galaxies at a redshift of 14". Nature. 633 (8029): 318–322. arXiv:2405.18485 . Bibcode:2024Natur.633..318C. doi:10.1038/s41586-024-07860-9. PMC 11390484 . PMID 39074505.
- ^ Todd, Iain (27 September 2024). "Webb discovers the most distant galaxy ever seen, existing shortly after the Big Bang during the Cosmic Dawn". Sky at Night Magazine . Retrieved 2024年06月05日.
- ^ a b c Lea, Robert (2024年05月30日). "James Webb Space Telescope spots the most distant galaxy ever seen (image)". Space.com . Retrieved 2024年06月05日.
- ^ a b Overbye, Dennis (2024年06月22日). "Piping Up at the Gates of Dawn" . The New York Times . ISSN 0362-4331 . Retrieved 2024年06月22日.
