B. C. Lemaux

Lensing/SED-fit of 78 high-z RELICS galaxies

Neufeld C, Strait V, Maruša Bradač, B. C. Lemaux et autres

us, dk, si, cn, il, it (code pays fourni par la source)

Two Exciting High-redshift Galaxy Candidates Turn Out to Be Two Exciting Ultra-cool Brown Dwarfs

Maruša Bradač, Chris Willott, Yoshihisa Asada, Loïc Albert et autres

From the onset of observations of JWST we have discovered unexpectedly luminous galaxies at redshifts $z>10$ and as high as $z=14$. With their discovery, the question immediately followed as to where their progenitors are, since such progenitors should be within reach of …

si, ca, it, us, il, es, fr, nl, cn, cl, br, at (code pays fourni par la source)

The HST -Hyperion survey: Environmental imprints on the stellar mass function at z ∼ 2.5

Derek Sikorski, Ben Forrest, B. C. Lemaux, Lu Shen et autres

Context. Not all galaxies at cosmic noon (2 ≲ z ≲ 3) evolve in the same way. Particularly, it remains unclear how and to what extent the local environment – especially the extreme overdensities of protoclusters – affects the stellar mass assembly …

ru, us, cl, it, in, nl, fr, cu (code pays fourni par la source)

Star Formation under a Cosmic Microscope: Highly Magnified z = 11 Galaxy behind the Bullet Cluster

Maruša Bradač, Jon Judež, Chris J. Willott, Gregor Rihtaršič et autres

Abstract We present measurements of stellar population properties of a newly discovered, spectroscopically confirmed, z = 11.1 0 − 0.26 + 0.11 , gravitationally lensed galaxy, using JWST NIRSpec PRISM spectroscopy and NIRCam imaging. The arc is highly magnified by the Bullet …

si, us, ca, nl, fr, at, it (code pays fourni par la source)

Environmental Regulation of Dust and Star Formation Unveiled by Subaru Dual Narrowband Imaging: Degree-scale Balmer Decrement Mapping Across a z = 0.9 Supercluster

Zhaoran Liu, Tadayuki Kodama, B. C. Lemaux, Mariko Kubo et autres

Abstract We present results from a dual narrowband imaging survey targeting the CL1604 supercluster at z = 0.9 using the Subaru Telescope. By combining the NB921 filter on Hyper Suprime-Cam and the NB1244 filter on SWIMS, we can detect redshifted H α …

Enhanced active galactic nucleus activity in overdense galactic environments at 2 < z < 4

Ekta A. Shah, B. C. Lemaux, Ben Forrest, Nimish P. Hathi et autres

We carried out a study on the relationship between galaxy environments and their active galactic nucleus (AGN) activity at high redshifts (2.0 < z < 4.0). Specifically, we studied the AGN fraction in galaxies residing in a range of environments at these …

us, cl, it, ru, cn (code pays fourni par la source)

LATIS Data Release: ∼4200 Spectra of z ∼ 2–3 Galaxies, Redshifts, and Intergalactic Medium Tomography Maps

Andrew B. Newman, Gwen C. Rudie, Guillermo A. Blanc, Daniel D. Kelson et autres

Abstract We present the data release of the Ly α Tomography IMACS Survey (LATIS), one of the largest optical spectroscopic surveys of faint high-redshift galaxies. The survey provides 7408 optical spectra of candidate z ∼ 2–3 galaxies and QSOs in the Canada–France–Hawaii …

LATIS: Galaxy–Environment Relations at Cosmic Noon and the Role of Sample Selection

Nima Chartab, Andrew B. Newman, Gwen C. Rudie, Guillermo A. Blanc et autres

Abstract We investigate the environmental dependence of galaxy properties at z ∼ 2.5 using the Ly α Tomography IMACS Survey (LATIS), which provides high-resolution three-dimensional maps of intergalactic medium (IGM) overdensity via Ly α forest tomography. Our analysis focuses on a UV-selected …

us, cl, it (code pays fourni par la source)

A Deep Dive down the Broad-line Region: Permitted O I , Ca II, and Fe II Emission in an Active Galactic Nucleus Little Red Dot at z = 5.3

Roberta Tripodi, Maruša Bradač, Francesco D’Eugenio, Nicholas S. Martis et autres

Abstract We present a spectroscopic analysis of a broad-line active galactic nucleus (AGN) selected as a little red dot (LRD) at z = 5.3 behind the Bullet cluster (Bz5.3) based on JWST/NIRCam and NIRSpec data. The detection of strong Fe ii , …

si, it, gb, ca, us, jp, nl, fr (code pays fourni par la source)

LATIS: Galaxy-Environment Relations at Cosmic Noon and the Role of Sample Selection

Nima Chartab, Andrew B. Newman, Gwen C. Rudie, Guillermo A. Blanc et autres

We investigate the environmental dependence of galaxy properties at $z\sim2.5$ using the Ly$α$ Tomography IMACS Survey (LATIS), which provides high-resolution three-dimensional maps of intergalactic medium (IGM) overdensity via Ly$α$ forest tomography. Our analysis focuses on a UV-selected spectroscopic sample of 2185 galaxies …

The ALPINE-CRISTAL-JWST survey: Spatially resolved star formation relations at z ∼ 5

C. Accard, M. Béthermin, M. Boquien, V. Buat et autres

Context. Star formation governs galaxy evolution, shaping stellar mass assembly and gas consumption across cosmic time. The Kennicutt-Schmidt (KS) relation, linking the star formation rate (SFR) and gas surface densities, is fundamental to understand star formation regulation, yet remains poorly constrained at …

fr, cl, it, au, be, ch, us, jp, pl, es, de, ru, kr (code pays fourni par la source)

Quantifying the Impact of Incompleteness on Identifying and Interpreting Galaxy Protocluster Populations with the TNG-Cluster Simulation

Devontae C. Baxter, Alison L. Coil, Ethan O. Nadler, Dylan Nelson et autres

Abstract We use the TNG-Cluster simulation to investigate how stellar mass and star formation rate (SFR) incompleteness affect the identification of density peaks within galaxy protoclusters at different redshifts. Our analysis focuses on a sample of 352 protoclusters, defined as the progenitor …

us, de, it (code pays fourni par la source)