2023ApJ...951L..17J

Query : 2023ApJ...951L..17J

2023ApJ...951L..17J - Astrophys. J., 951, L17 (2023/July-1)

Early Results from GLASS-JWST. XXI. Rapid Asembly of a Galaxy at z = 6.23 Revealed by Its C/O Abundance.

JONES T., SANDERS R., CHEN Y., WANG X., MORISHITA T., ROBERTS-BORSANI G., TREU T., DRESSLER A., MERLIN E., PARIS D., SANTINI P., BERGAMINI P., HENRY A., HUNTZINGER E., NANAYAKKARA T., BOYETT K., BRADAC M., BRAMMER G., CALABRO A., GLAZEBROOK K., GRASHA K., MASCIA S., PENTERICCI L., TRENTI M. and VULCANI B.

Abstract (from CDS):

The abundance of carbon relative to oxygen (C/O) is a promising probe of star formation history in the early universe, as the ratio changes with time due to production of these elements by different nucleosynthesis pathways. We present a measurement of $\mathrm{log}({\rm{C}}/{\rm{O}})=-1.01\pm 0.12$ (stat) ±0.15 (sys) in a z = 6.23 galaxy observed as part of the GLASS-JWST Early Release Science Program. Notably, we achieve good precision thanks to the detection of the rest-frame ultraviolet O III], C III], and C IV emission lines delivered by JWST/NIRSpec. The C/O abundance is ∼0.8 dex lower than the solar value and is consistent with the expected yield from core-collapse supernovae, indicating that longer-lived intermediate-mass stars have not fully contributed to carbon enrichment. This in turn implies rapid buildup of a young stellar population with age ≲100 Myr in a galaxy seen ∼900 Myr after the big bang. Our chemical abundance analysis is consistent with spectral energy distribution modeling of JWST/NIRCam photometric data, which indicates a current stellar mass $\mathrm{log}\,{M}_{* }/{M}_{\odot }={8.4}_{-0.2}^{+0.4}$ and specific star formation rate ≃20 Gyr^–1. These results showcase the value of chemical abundances and C/O in particular to study the earliest stages of galaxy assembly.

Journal keyword(s): High-redshift galaxies - Galaxy abundances - Abundance ratios - Emission line galaxies

Simbad objects: 1

Full paper

View the references in ADS

Number of rows : 1

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	[MPC2023] GLASS 150008	LeG	00 14 24.607	-30 25 09.24						~	21	0

Query : 2023ApJ...951L..17J

Basic data :

[MPC2023] GLASS 150008 -- Gravitationally Lensed Image of a Galaxy

LeG (2023A&A,[MPC2023]), G (2023ApJ)

00 14 24.607 -30 25 09.24 (Near-IR) [ ] C 2023ApJ...951L..17J

00 11 53.105 -30 41 50.04 [ ]

008.668328 -81.247897 [ ]

V(km/s) 288534 [21] / z(spectroscopic) 6.22895 [0.00007] / cz 1867392.2 [21.0] (NIR) D 2023ApJ...951L..17J

F150W 25.8 [~] D 2023A&A...672A.155M

Overlay

points in this preview

2MASS DSS

All

(CDSPortal)

Send to

Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

An access of full data is available using the icon Vizier near the identifier of the catalogue

[MPC2023] GLASS 150008

References (21 between 1850 and 2026) (Total 21)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

Follow new references on this object

Collections of Measurements

External archives :

Search by coordinates in Vizier (radius: 5 arcsec)

Annotations :
Annotations allow a user to add a note or report an error concerning the astronomical object and its data. It requires registration to post a note. See description .
Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .

The annotation server is currently not available. Sorry for any inconvenience

To bookmark this query, right click on this link: simbad:objects in 2023ApJ...951L..17J and select 'bookmark this link' or equivalent in the popup menu