2024RNAAS...8..297R

Query : 2024RNAAS...8..297R

2024RNAAS...8..297R - Research Notes of the AAS, 8, 297 (2024/December-0)

Spatially Resolved Stellar Populations of z = 3-6 Lyα-emitting Galaxies with CEERS JWST NIRCam Imaging.

RAHMAN T., JUNG I., ABDURRO'UF, FERGUSON H.C., PACUCCI F., HATHI N.P. and KOEKEMOER A.M.

Abstract (from CDS):

We conduct spatially resolved spectral energy distribution (SED) fitting of 46 spectroscopically confirmed Lyα emitting galaxies at 3.5 < z < 6.5 using JWST NIRCam imaging data from the Extended Groth Strip field. Using PIXEDFIT for resolved photometry and SED fitting, we derive radial trends of star formation rate (SFR), surface stellar mass density, specific SFR (sSFR), stellar age, dust attenuation (AV), and metallicity. Our analysis reveals that galaxies below the star-forming main sequence (SFMS) display lower central sSFR and older stellar ages compared to those on/above the SFMS, aligning with the picture of inside-out quenching scenario. These findings provide hints into the physical properties and the structural evolution of high-redshift Lyα emitters in the early universe.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Galaxy evolution - Reionization - Lyman-alpha galaxies - Star formation - Stellar populations - Early universe

Simbad objects: 1

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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 NAME Extended Groth Strip reg 14 19 +52.8           ~ 1023 0

Query : 2024RNAAS...8..297R

Basic data :
NAME Extended Groth Strip -- Region defined in the Sky
Other object types: otypes_help 		reg ()
ICRS coord. (ep=J2000) : 		14 19 00.0 +52 48 00 [ ] E ~
FK4 coord. (ep=B1950 eq=1950) : 		14 17 16.3 +53 01 45 [ ]
Gal coord. (ep=J2000) : 		096.4814 +59.5977 [ ]
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Identifiers (2) :
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NAME EGS NAME Extended Groth Strip

References (1023 between 1850 and 2026) (Total 1023)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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