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20212026
most citedThe Sparkler: Evolved High-Redshift Globular Clusters Captured by JWST

82 citations · 155 across the 19 of their papers we have counts for

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19 papers · 1 filter

astro-ph.GA2026

Early steps in the hierarchical assembly of a Milky Way-mass galaxy 1 Gyr after the Big Bang

Yoshihisa Asada, Marcin Sawicki, Guillaume Desprez +14

We report JWST observations of a compact group of three strongly lensed low-mass galaxies ( each) whose small line-of-sight velo…

astro-ph.GA2026

The Physical Conditions of Low-Mass Galaxies at z=3.5-7.0 from JWST Spectroscopy: The Behaviour of Spectral Line Ratios with Burstiness

Ryan A. Cooper, Karina I. Caputi, Alessandro Marconi +5

We present a study of the physical conditions of galaxies at redshifts , based on emission-line diagnostics of JWST NIRSpec spectra for 1889 star-forming sources spannin…

astro-ph.GA2026

A New Window on the Hα Luminosity Function and Star Formation Rate Density from 1.2 < z < 6.6 from JWST Medium-Band Photometry

Nicholas S. Martis, Chris Willott, Gregor Rihtaršič +23

We present the first self-consistent measurement of the Hα luminosity function over a wide redshift range, covering cosmic noon into the epoch of reionization. Our analysis utilize…

astro-ph.GA2026

Interaction-induced star formation boosts stellar mass assembly in galaxies

Kiyoaki C. Omori, Marcin Sawicki, Rosa M. Mérida +10

Galaxy interactions are a key ingredient in galaxy evolution; not only are they a primary pathway of galaxy growth and mass assembly, but also a key driver of processes such as sta…

astro-ph.GA2026

JWST Reveals Two Overmassive Black Hole Candidates in Dwarf Galaxies at z 0.7: Pushing Black Hole Searches into the Dwarf-Galaxy Regime

E. Iani, P. Rinaldi, A. Torralba +35

We report the discovery and characterization of two compact galaxies, Pelias and Neleus, at z ~ 0.71 and z ~ 0.75, identified in MACS J0416.1-2403 and GOODS-North. Both exhibit unu…

astro-ph.GA2025

RIDEN pilot survey: broad-band selection of candidate quasars with extended Lyman- nebulae using CLAUDS-HSC-SSP-DUNES joint data

Rhythm Shimakawa, Satoshi Kikuta, Haruka Kusakabe +5

The Vera C. Rubin Observatory will conduct the Legacy Survey of Space and Time (LSST), delivering deep, multi-band () imaging data across 18,000 square degrees over the nex…

astro-ph.GA2025★ 3 cited

Effects of Environment on the Size Evolution of Quiescent Galaxies: Comparing Galaxies in Clusters and in the Field at Two Rest-frame Wavelengths

Angelo George, Ivana Damjanov, Marcin Sawicki +9

We investigate the impact of environment on quiescent galaxy (QG) size evolution using the CLAUDS+HSC imaging covering 18.6~deg in five broad filters () and the effectiv…

astro-ph.GA2025★ 1 cited

High-velocity outflows in [OIII] emitters at z=2.5-9 from JWST NIRSpec medium-resolution spectroscopy

Ryan A. Cooper, Karina I. Caputi, Edoardo Iani +3

We identify galaxies hosting ionised-gas high-velocity outflows from the complete sample of medium resolution (R1000) JWST/NIRSpec MSA spectroscopy taken as part of the JWST Advanc…

astro-ph.GA2024

The Growth of Galaxy Stellar Haloes Over

Devin J. Williams, Ivana Damjanov, Marcin Sawicki +9

Galaxies are predicted to assemble their stellar haloes through the accretion of stellar material from interactions with their cosmic environment. Observations that trace stellar h…

astro-ph.GA2024★ 11 cited

Detailed Study of Stars and Gas in a z = 8.3 Massive Merger with Extreme Dust Conditions

Anishya Harshan, Roberta Tripodi, Nicholas S. Martis +15

We present galaxy MACS0416-Y1 at z as observed by the CAnadian NIRISS Unbiased Cluster Survey (CANUCS). MACS0416-Y1 has been shown to have extreme dust proper…

astro-ph.GA2024★ 7 cited

Cluster candidates with massive quiescent galaxies at

Tomokazu Kiyota, Makoto Ando, Masayuki Tanaka +7

Galaxy clusters are crucial to understanding role of the environment in galaxy evolution. However, due to their rarity, only a limited number of clusters have been identified at $z…

astro-ph.GA2024

Probing the stellar populations and star formation history of early-type galaxies at in the rest-frame ultraviolet

Sadman Ali, Roberto De Propris, Chul Chung +6

We measure the evolution of the rest-frame colors for early-type galaxies in clusters at using data from the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP),…

astro-ph.GA2023★ 5 cited

A Steep Decline in the Galaxy Space Density Beyond Redshift 9 in the CANUCS UV Luminosity Function

Chris J. Willott, Guillaume Desprez, Yoshihisa Asada +15

We present a new sample of 158 galaxies at redshift selected from deep \jwst\ NIRCam imaging of five widely-separated sightlines in the CANUCS survey. Two-thirds of the poi…

astro-ph.GA2023★ 1 cited

CDM not dead yet: massive high-z Balmer break galaxies are less common than previously reported

Guillaume Desprez, Nicholas S. Martis, Yoshihisa Asada +15

Early JWST observations that targeted so-called double-break sources (attributed to Lyman and Balmer breaks at ), reported a previously unknown population of very massive, evo…

astro-ph.GA2023★ 2 cited

Star Formation at the Epoch of Reionization with CANUCS: The ages of stellar populations in MACS1149-JD1

Maruša Bradač, Victoria Strait, Lamiya Mowla +15

We present measurements of stellar populations properties of a z = 9.1 gravitationally lensed galaxy MACS1149-JD1 using deep JWST NIRISS slitless spectroscopy as well as NIRISS and…

astro-ph.GA2023★ 2 cited

Spectroscopy from Photometry: A Population of Extreme Emission Line Galaxies at Selected with JWST Medium Band Filters

Sunna Withers, Adam Muzzin, Swara Ravindranath +13

We use JWST/NIRCam medium band photometry in a single pointing of the CAnadian NIRISS Unbiased Cluster Survey (CANUCS) to identify 118 Extreme Emission Line Galaxies (EELGs) over $…

astro-ph.GA2023★ 31 cited

A First Look at Spatially Resolved Balmer Decrements at from JWST NIRISS Slitless Spectroscopy

Jasleen Matharu, Adam Muzzin, Ghassan Sarrouh +14

We present the first results on the spatial distribution of dust attenuation at traced by the Balmer Decrement, H/H, in emission-line galaxies using deep JWST NIR…

astro-ph.GA2022★ 82 cited

The Sparkler: Evolved High-Redshift Globular Clusters Captured by JWST

Lamiya A. Mowla, Kartheik G. Iyer, Guillaume Desprez +17

Using data from JWST, we analyze the compact sources ("sparkles") located around a remarkable galaxy (the "Sparkler") that is strongly gravitationally lensed b…

astro-ph.GA2021★ 5 cited

Searching for low-redshift faint galaxies with MMT/Hectospec

Cheng Cheng, Jia-Sheng Huang, Christopher N. A. Willmer +20

We present redshifts for 2753 low-redshift galaxies between with 18 22 obtained with Hectospec at the Multi-Mirror Telesco…