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Št. zadetkov: 6
Improving photometric redshifts of epoch of reionization galaxies
Yoshihisa Asada, Guillaume Desprez, Chris J. Willott, Marcin Sawicki, Maruša Bradač, Nicholas S. Martis, Anishya Harshan Thevalil, Vladan Markov
Izvirni znanstveni članek
Oznake: high redshift galaxies;reionization;intergalactic medium;
We present a new analytical model for the attenuation to Epoch of Reionization (EoR) galaxies by proximate neutral hydrogen gas. Many galaxy spectra in the EoR taken by JWST have shown a flux deficit at wavelengths just redward of the Lyman break, and this has been regarded as resulting from Lyα dam ...
Leto: 2025 Vir: Fakulteta za matematiko in fiziko (UL FMF)
ǂA ǂsteep decline in the galaxy space density beyond redshift 9 in the CANUCS UV luminosity function
Chris J. Willott, Guillaume Desprez, Yoshihisa Asada, Ghassan T. E. Sarrouh, Roberto Abraham, Maruša Bradač, Nicholas S. Martis, Gregor Rihtaršič
Izvirni znanstveni članek
Oznake: high-redshift galaxies;astrophysics of galaxies;
A steep decline in the galaxy space density beyond redshift 9 in the CANUCS UV luminosity function
Leto: 2024 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Star formation at the epoch of reionization with CANUCS
Maruša Bradač, Victoria Strait, Lamiya Mowla, Kartheik G. Iyer, Gaël Noirot, Chris J. Willott, Anishya Harshan Thevalil, Nicholas S. Martis, Gregor Rihtaršič
Izvirni znanstveni članek
Oznake: high-redshift galaxies;gravitational lensing;reionization;
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 i ...
Leto: 2024 Vir: Fakulteta za matematiko in fiziko (UL FMF)
In search of the first stars
Chris J. Willott, Yoshihisa Asada, Kartheik G. Iyer, Jon Judež, Gregor Rihtaršič, Nicholas S. Martis, Anishya Harshan Thevalil, Giordano Felicioni, Maruša Bradač, Vladan Markov, Roberta Tripodi
Izvirni znanstveni članek
Oznake: Lyman-alpha galaxies;Emission line galaxies;reionization;metallicity;
We present JWST observations of a gravitationally lensed, extremely metal-poor galaxy at redshift z = 8.203 ± 0.001 from the CANUCS survey. Based on the low oxygen to Balmer line ratios, we infer a gas-phase metallicity of 12 + log(O/H) = 6.85 (1.4% solar), making CANUCS-A370-z8-LAE one of the most ...
Leto: 2025 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Modeling and subtracting diffuse cluster light in JWST images
Nicholas S. Martis, Ghassan T. E. Sarrouh, Chris J. Willott, Roberto Abraham, Yoshihisa Asada, Maruša Bradač, Gabriel B. Brammer, Guillaume Desprez, Anishya Harshan Thevalil, Gregor Rihtaršič
Izvirni znanstveni članek
Oznake: galaxy clusters;high-redshift galaxy clusters;globular star clusters;galaxy evolution;
We present a methodology for modeling and removing light from cluster galaxies and intracluster light (ICL) from James Webb Space Telescope images of gravitational lensing clusters. We apply our method to Webb’s First Deep Field the SMACS 0723 Early Release Observations and use the ICL-subtracted im ...
Leto: 2024 Vir: Fakulteta za matematiko in fiziko (UL FMF)
ΛCDM not dead yet
Guillaume Desprez, Nicholas S. Martis, Yoshihisa Asada, Marcin Sawicki, Chris J. Willott, Adam Muzzin, Roberto Abraham, Maruša Bradač, Gabriel B. Brammer, Vicente Estrada-Carpenter, Kartheik G. Iyer, Victoria Strait, Gregor Rihtaršič
Izvirni znanstveni članek
Oznake: galaxies evolution;high-redshift galaxies;dark ages;reionization;
ΛCDM not dead yet: massive high-z Balmer break galaxies are less common than previously reported
Leto: 2024 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Št. zadetkov: 6
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