ǂthe ǂages of stellar populations in MACS1149-JD1
Maruša Bradač (Avtor), Victoria Strait (Avtor), Lamiya Mowla (Avtor), Kartheik G. Iyer (Avtor), Gaël Noirot (Avtor), Chris J. Willott (Avtor), Anishya Harshan Thevalil (Avtor), Nicholas S. Martis (Avtor), Gregor Rihtaršič (Avtor)

Povzetek

We present measurements of stellar populations properties of a $z$ = 9.1 gravitationally lensed galaxy MACS1149-JD1 using deep James Webb Space Telescope NIRISS slitless spectroscopy as well as NIRISS and NIRCam imaging from the CAnadian NIRISS Unbiased Cluster Survey (CANUCS). The galaxy is split into four components. Three magnified ($μ$ ∼ 11) star-forming components are unresolved, giving intrinsic sizes of < 25 pc. In addition, the underlying extended component contains the bulk of the stellar mass, formed the majority of its stars ∼50 Myr earlier than the other three components, and is not the site of the most active star formation currently. The NIRISS and NIRCam resolved photometry does not confirm a strong Balmer break previously seen in Spitzer. The NIRISS grism spectrum has been extracted for the entire galaxy and shows a clear continuum and Lyman break, with no Ly$α$ detected.

Ključne besede

high-redshift galaxies;gravitational lensing;reionization;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FMF - Fakulteta za matematiko in fiziko
UDK: 524.8
COBISS: 182919427 Povezava se bo odprla v novem oknu
ISSN: 2041-8213
Št. ogledov: 1096
Št. prenosov: 164
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Vrsta dela (COBISS): Članek v reviji
Strani: L21, str. 1-7
Letnik: ǂVol. ǂ961
Zvezek: ǂissue ǂ1
Čas izdaje: January 2024
DOI: 10.3847/2041-8213/ad0e73
ID: 22824607
Priporočena dela:
, ǂthe ǂages of stellar populations in MACS1149-JD1
, ni podatka o podnaslovu
, approaching population III stars with JWST
, ǂthe ǂmass-metallicity relation in lensed field galaxies at cosmic noon with NIRISS
, massive high-z Balmer break galaxies are less common than previously reported