activity
20242026
most citedRUBIES: JWST/NIRSpec Confirmation of an Infrared-luminous, Broad-line Little Red Dot with an Ionized Outflow

81 citations · 110 across the 11 of their papers we have counts for

collaborators

17 papers

astro-ph.GA2026

Developing Environments: Formation and Quenching at Cosmic Noon Traced by the Large-scale Distribution of Gas and Galaxies

Amir H. Khoram, Sirio Belli, Trevor Mendel +16

Environmental density correlates with galaxy properties in the local Universe, but how and when these trends emerge is unclear: at cosmic noon, large-scale structures are still ass…

astro-ph.GA2026

How Steep is your Dust? Direct Measurements of Nebular Attenuation Curves at Cosmic Noon with JWST

Gabriel Maheson, Sirio Belli, Sandro Tacchella +8

Tracing the shape of the nebular attenuation curve, which is crucial for accurately measuring intrinsic emission-line fluxes, has proven challenging both in the local universe and…

astro-ph.IM2026

ALMA2040: The High-Redshift Circumgalactic Medium. Imaging the fueling and feedback of galaxies in the early universe

Kirsty M. Butler, Justin Spilker, Seiji Fujimoto +23

Galaxies do not form in isolation, but rather as part of a wider interconnected web mediated at their interface by an extended gaseous atmosphere - the Circum-Galactic Medium (CGM)…

astro-ph.GA2026

The Role of Environment in Shaping the Assembly Timelines of Massive Quiescent Galaxies at Cosmic Noon

Tianmu Gao, J. Trevor Mendel, Letizia Bugiani +10

JWST observations of massive quiescent galaxies (MQGs) at have revealed diverse star formation histories (SFHs). In this letter, we investigate whether these variations ar…

astro-ph.GA2026

Galactic Outflows and Star-Formation Quenching: A JWST Perspective

Rebecca L. Davies, Sirio Belli

Outflows driven by active galactic nuclei (AGN) are widely considered a key mechanism for regulating and quenching star formation in massive galaxies. However, direct observational…

astro-ph.GA2026

Outflows in the Early Universe: Neutral gas Absorption in Galaxies at z > 3 from low-resolution JWST Spectroscopy

Matteo Sapori, Sirio Belli, Letizia Bugiani +14

Recent JWST/NIRSpec observations have shown that Na I D absorption tracing neutral gas outflows is widespread in massive galaxies at Cosmic Noon (-), but their prevalenc…

astro-ph.GA2026

Tracing Cold Gas in Absorption Across Cosmic Time with the SKA

Elizabeth K. Mahony, Neeraj Gupta, Sergei A. Balashev +12

Observing the 21-cm HI line in absorption provides a powerful means of tracing the cold neutral gas in normal and active galaxies across cosmic time. The frequency coverage and sen…

astro-ph.GA2026

Unraveling Chemical Enrichment in Extreme Emission-Line Galaxies: A Multi-Element Bayesian View of Bursty Star Formation and Galaxy Evolution in DESI

Razieh Emami, James A. A. Trussler, Tiger Yu-Yang Hsiao +11

Extreme emission-line galaxies (EELGs) probe chemical enrichment in low-mass, bursty systems where star formation, feedback, and gas accretion are poorly constrained. Using DESI DR…

astro-ph.GA2026

The ASKAP-FLASH survey: A first look at the multiwavelength properties and redshift distribution of compact radio sources

W. Roster, E. M. Sadler, E. K. Mahony +15

We present the characterisation, including a photometric redshift (photo-) analysis, of the optical counterparts (CTPs) to over 45 000 bright ( 30 mJy) comp…

astro-ph.GA2025

The Blue Jay Survey: Deep JWST Spectroscopy for a Representative Sample of Galaxies at Cosmic Noon

Sirio Belli, Letizia Bugiani, Minjung Park +17

We present the Blue Jay survey, a cycle 1 JWST program aimed at studying the stellar and gas content of galaxies at cosmic noon. The survey consists of deep spectroscopy for 153 ta…

astro-ph.GA2025★ 3 cited

Probing neutral outflows in z ~ 2 galaxies using JWST observations of Ca II H and K absorption lines

Caterina Liboni, Sirio Belli, Letizia Bugiani +12

Using deep JWST/NIRSpec spectra from the Blue Jay survey, we perform the first systematic investigation of neutral gas content in massive galaxies at Cosmic Noon based on the Ca II…

astro-ph.GA2025

Big, Dusty Galaxies in Blue Jay: Insights into the Relationship Between Morphology and Dust Attenuation at Cosmic Noon

Gabriel Maheson, Sandro Tacchella, Sirio Belli +10

The dust attenuation of galaxies is highly diverse and closely linked to stellar population properties and the star dust geometry, yet its relationship to galaxy morphology remains…

astro-ph.GA2024

Unravelling the role of merger histories in the population of In situ stars: linking IllustrisTNG cosmological simulation to H3 survey

Razieh Emami, Lars Hernquist, Randall Smith +16

We undertake a comprehensive investigation into the distribution of in~situ stars within Milky Way-like galaxies, leveraging TNG50 simulations and comparing their predictions with…

astro-ph.GA2024★ 22 cited

AGN Feedback in Quiescent Galaxies at Cosmic Noon Traced by Ionized Gas Emission

Letizia Bugiani, Sirio Belli, Minjung Park +17

We analyze ionized gas emission lines in deep rest-frame optical spectra of 16 quiescent galaxies at redshift observed with JWST/NIRSpec by the Blue Jay survey. Robust…

astro-ph.GA2024★ 2 cited

Cue: A Fast and Flexible Photoionization Emulator for Modeling Nebular Emission Powered By Almost Any Ionizing Source

Yijia Li, Joel Leja, Benjamin D. Johnson +5

The complex physics governing nebular emission in galaxies, particularly in the early universe, often defy simple low-dimensional models. This has proven to be a significant barrie…

astro-ph.GA2024★ 2 cited

Widespread rapid quenching at cosmic noon revealed by JWST deep spectroscopy

Minjung Park, Sirio Belli, Charlie Conroy +16

Massive quiescent galaxies in the young universe are expected to be quenched rapidly, but it is unclear whether they all experience starbursts before quenching and what physical me…

astro-ph.GA2024★ 81 cited

RUBIES: JWST/NIRSpec Confirmation of an Infrared-luminous, Broad-line Little Red Dot with an Ionized Outflow

Bingjie Wang, Anna de Graaff, Rebecca L. Davies +22

The JWST discovery of ``little red dots'' (LRDs) is reshaping our picture of the early Universe, yet the physical mechanisms driving their compact size and UV-optical colors remain…