activity
20122026
most citedQSO MUSEUM I: A sample of 61 extended Ly-emission nebulae surrounding quasars

169 citations · 1.8k across the 62 of their papers we have counts for

collaborators

64 papers

astro-ph.GA2026

Cosmic web Ly emission in a sample of overdense regions

Davide Tornotti, Michele Fumagalli, Matteo Fossati +7

We present a complete and homogeneous analysis of the Ly emission properties of the cosmic web at as a function of the overdensity of Ly emitters (L…

astro-ph.GA2026

Extreme Enrichment at Cosmic Dawn: Three FeII-Strong Quasars at z > 6 from the JWST Aether survey

Anniek J. Gloudemans, Emanuele Paolo Farina, Roberto Decarli +22

We present three outliers on the quasar main sequence at z>6, as revealed by JWST/NIRSpec IFU observations from the Aether survey, a program targeting ~200 quasars at cosmic dawn.…

astro-ph.GA2026

Tracing Warm Gas through C IV Radiative Transfer

Jin Lim, Seok-Jun Chang, Max Gronke +3

The C IV resonance doublet is a key tracer of warm gas () within and around galaxies. Recent observations have detected this line in both ab…

astro-ph.GA2026

The Quasar Feedback Survey: Ionised Outflows in type 2 QSOs with MUSE data

M. Bianchin, C. M. Harrison, T. Costa +13

We study ionised gas properties in a sample of 18 luminous (log L erg/s) obscured QSOs at 0.085<z<0.2 observed with VLT/MUSE as part of the multi-wavelength Quasa…

astro-ph.GA2026

A 6.2 Quasar on the Local M- Relation Quenching Its Host Galaxy from the Aether Survey

Weizhe Liu, Emanuele Paolo Farina, Xiaohui Fan +19

We report JWST/NIRSpec integral field unit (IFU) observations of the quasar J15124422 at from the Aether survey. At 900 Myr after the Big Bang, this object al…

astro-ph.GA2026

ALMA visits the QSO MUSEUM: Connecting molecular gas and the cool circumgalactic medium around 37 quasars

Jelena Ritter, Fabrizio Arrigoni Battaia, Bo Peng +5

Extended Ly emission is ubiquitous around quasars and traces the cool circumgalactic medium, providing insights into halo gas dynamics and active galactic nucleus feedback. Howe…

astro-ph.GA2026★ 2 cited

Stellar feedback SPICEs up [C II] emission in the first galaxies

Aniket Bhagwat, Tiago Costa, Benedetta Ciardi +1

The bright [C II] 158 micron line is widely used to trace star-forming gas and feedback-driven outflows in high-redshift galaxies. Using the SPICE simulations, we investigate how b…

astro-ph.GA2026

Exploring the gaseous halos of z>3 radio galaxies with UVES and JWST/NIRSpec

Jelena Ritter, Wuji Wang, Dominika Wylezalek +3

High-redshift radio galaxies (HzRGs) are among the most massive galaxies in the Universe and sites of extreme active galactic nuclei (AGN) feedback processes, powering energetic ra…

astro-ph.GA2026

Constraining the nature of active galactic nuclei through circumgalactic Lya emission at z=2-3

Shiwu Zhang, Zheng Cai, Fabrizio Arrigoni Battaia +8

We present a comprehensive analysis of circumgalactic Lya nebulae around 59 unobscured and 26 obscured quasars at z=2-3, observed with the Keck Cosmic Web Imager (KCWI), to constra…

astro-ph.GA2025

Testing the AGN unified model with simulated emission lines from the circumgalactic medium (CGM)

Shiwu Zhang, Zheng Cai, Aura Obreja +5

The CGM around unobscured AGN has received much attention in recent years. Comparatively, nebulae associated with obscured AGN are less studied. Here, we simulate the Ly, H,…

astro-ph.GA2025★ 2 cited

Submillimeter galaxy overdensities around physically associated quasar pairs

Eileen Herwig, Fabrizio Arrigoni Battaia, Chian-Chou Chen +4

A commonly employed method to detect protoclusters in the young universe is the search for overdensities of massive star forming galaxies, such as submillimeter galaxies (SMGs), ar…

astro-ph.GA2025

Bayesian luminosity function estimation in multi-depth datasets with selection effects: A case study for Lyman emitters

Davide Tornotti, Matteo Fossati, Michele Fumagalli +3

We present a hierarchical Bayesian framework designed to infer the luminosity function of any class of object by jointly modelling data from multiple surveys with varying depth, co…

astro-ph.GA2025

The SUPERCOLD-CGM survey: II. [\ion{C}{1}] emission and the physical conditions of cold gas in Enormous Ly nebulae at

Jianan Li, Bjorn H. C. Emonts, Zheng Cai +13

We report ALMA and ACA observations of atomic carbon ([\ion{C}{1}]) and dust continuum in 10 Enormous Ly Nebulae hosting ultra-luminous Type-I QSOs at , as par…

astro-ph.GA2025

Constraining the geometry of the gas surrounding a typical galaxy at with Ly polarization

A. Bolamperti, S. -J. Chang, J. Vernet +6

Ly emission is the strongest tracer of recombining ionized hydrogen in young, star-forming galaxies, but its origin is still debated. Ly arises when emitted photons scatter i…

astro-ph.GA2024★ 2 cited

Modeling Mg II resonance doublet spectra from galaxy haloes at z 1

Seok-Jun Chang, Rajeshwari Dutta, Max Gronke +3

We investigate the properties of cold gas at around star-forming galaxies at using Mg II spectra through radiative transfer modeling. We utilize a comprehen…

astro-ph.GA2024★ 8 cited

Direct high-resolution observation of feedback and chemical enrichment in the circumgalactic medium at redshift z ~ 2.8

Bo Peng, Fabrizio Arrigoni Battaia, Amit Vishwas +8

The circumgalactic medium (CGM) plays a vital role in galaxy evolution, however, studying the emission from CGM is challenging due to its low surface brightness and the complexitie…

astro-ph.GA2024★ 4 cited

A candidate quadruple AGN system at

Eileen Herwig, Fabrizio Arrigoni Battaia, Eduardo Bañados +1

Multiple galaxies hosting active galactic nuclei (AGNs) at kiloparsec separation from each other are exceedingly rare, and in fact, only one quadruple AGN is known so far. These ex…

astro-ph.GA2024★ 5 cited

Metal line emission around z<1 galaxies

Rajeshwari Dutta, Michele Fumagalli, Matteo Fossati +7

We characterize, for the first time, the average extended emission in multiple lines ([OII], [OIII], and Hbeta) around a statistical sample of 560 galaxies at z~0.25-0.85. By stack…

astro-ph.GA2024★ 7 cited

Simulated [CII] in high-z galaxies

N. Muñoz-Elgueta, F. Arrigoni Battaia, G. Kauffmann +4

Extended [CII] emission on tens of kpc, also known as a [CII] halo, is being currently reported around z4-6 star-forming galaxies, especially thanks to the statistics of the…

astro-ph.GA2024

Unveiling [CII] clumps in a lensed star-forming galaxy at z ~ 3.4

A. Zanella, E. Iani, M. Dessauges-Zavadsky +15

Observations at UV and optical wavelengths have revealed that galaxies at z~1-4 host star-forming regions, dubbed "clumps", which are believed to form due to the fragmentation of g…

astro-ph.GA2023

Quasar Feedback Survey: molecular gas affected by central outflows and by ~10 kpc radio lobes reveal dual feedback effects in `radio quiet' quasars

A. Girdhar, C. M. Harrison, V. Mainieri +17

We present a study of molecular gas, traced via CO (3-2) from ALMA data, of four z< 0.2, `radio quiet', type 2 quasars (log [L(bol)/(erg/s)] = 45.3 - 46.2; log [L(1.4 GHz)/(W/Hz)]…

astro-ph.GA2023

AGN radiation imprints on the circumgalactic medium of massive galaxies

Aura Obreja, Fabrizio Arrigoni Battaia, Andrea V. Macciò +1

Active Galactic Nuclei (AGN) in cosmological simulations generate explosive feedback that regulates star formation in massive galaxies, modifying the gas phase structure out to lar…

astro-ph.GA2023

The Quasar Feedback Survey: characterising CO excitation in quasar host galaxies

S. J. Molyneux, G. Calistro Rivera, C. De Breuck +15

We present a comprehensive study of the molecular gas properties of 17 Type 2 quasars at 0.2 from the Quasar Feedback Survey (L > ), sel…

astro-ph.GA2023★ 15 cited

3D tomography of the giant Ly nebulae of 3--5 radio-loud AGN

Wuji Wang, Dominika Wylezalek, Joël Vernet +12

Ly emission nebulae are ubiquitous around high-z galaxies and are tracers of the gaseous environment on scales out to >100 kpc. High-z radio galaxies (HzRGs, type-2 radio-loud q…