JADES-GS-z14-0

JADES-GS-z14-0
JADES-GS-z14-0, as seen by NIRCam
Observation data (J2000 epoch)
Constellation	Fornax
Right ascension	03^h 32^m 36.89^s
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 furthest galaxy and astronomical object ever discovered.

Discovery

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] placing the galaxy's formation at an estimated 290 million years after the Big Bang.^[5] Its age, size, and luminosity added to a growing body of evidence that current theories of early star and galaxy formation are incomplete.^[6]

Characteristics

JADES-GS-z14-0 is 1600 light years wide and very luminous.^[6] Spectroscopic analysis revealed the presence of strong ionized gas emissions, including hydrogen and oxygen.^[4]

Further observations

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

• JADES-GS-z13-0, the former record-holder for furthest galaxy
• List of the most distant astronomical objects

References

1. Cesari, Thaddeus (2024-05-30). "NASA's James Webb Space Telescope Finds Most Distant Known Galaxy". James Webb Space Telescope. Retrieved 2024-06-05.
2. 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). "A shining cosmic dawn: spectroscopic confirmation of two luminous galaxies at z ∼ 14". arXiv:2405.18485 [astro-ph.GA].
3. Todd, Iain (2024-05-31). "Webb discovers the most distant galaxy ever seen, existing shortly after the Big Bang during the Cosmic Dawn". Sky at Night Magazine. Retrieved 2024-06-05.
4. Lea, Robert (2024-05-30). "James Webb Space Telescope spots the most distant galaxy ever seen (image)". Space.com. Retrieved 2024-06-05.
5. "Journey to Cosmic Dawn: James Webb Space Telescope Finds Oldest Galaxy Ever". James Webb Space Telescope Discoveries Tracker. 2024-05-30. Retrieved 2024-06-05.
6. Overbye, Dennis (2024-06-22). "Piping Up at the Gates of Dawn". The New York Times. ISSN 0362-4331. Retrieved 2024-06-22.