99 citations · 196 across the 27 of their papers we have counts for
27 papers · 1 filter
Constraining the density distribution of the cold Circumgalactic Medium of quasars at z>2 through Lya, HeII and Ha emission
Andrea Travascio, Sebastiano Cantalupo, Titouan Lazeyras +16
Extended Lya emission is routinely detected around high-redshift quasars, revealing large reservoirs of cool circumgalactic medium (CGM). Its resonant nature complicates interpreta…
Detection of metal absorption lines in quasar spectra: a neural network approach using U-Net
Elena Sofia Mangola, Francesco Pistis, Michele Fumagalli +7
Current and future large spectroscopic surveys are significantly enhancing the volume and resolution of quasar spectra that are observed, which requires the creation of efficient a…
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…
The MUSE Ultra Deep Field (MUDF) VIII. The cool gas distribution surrounding galaxies at redshifts z ~ 0.5-2
Edoardo Santo, Michele Fumagalli, Seok-Jun Chang +5
We use deep MUSE data from the MUDF survey to investigate the cool gas around galaxies at redshifts 0.5 < z < 2. We constructed two samples: one sample for a down-the-barrel analys…
MUSE Analysis of Gas around Galaxies (MAGG) -- VII. Emission line galaxies near strong blended Ly absorption systems at
Marta Galbiati, Davide Tornotti, Michele Fumagalli +2
We investigate the connection between strong, blended Ly absorption systems (SBLAs) and Ly emitting galaxies (LAEs) at in 28 quasar fields from the…
Baryonic Ecosystem IN Galaxies (BEINGMgII) -- III. Cool gas reservoirs at in the Dark Energy Survey
Reena Chaudhary, Ravi Joshi, Sarbeswar Das +5
We investigate the origin of intervening cool MgII absorption detected in the spectra of background quasars and the nature of associated galaxies across a broad redshift range of $…
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…
Automated quasar continuum estimation using neural networks: a comparative study of deep-learning architectures
Francesco Pistis, Michele Fumagalli, Matteo Fossati +13
Context. Ongoing and upcoming large spectroscopic surveys are drastically increasing the number of observed quasar spectra, requiring the development of fast and accurate automated…
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…
Baryonic Ecosystem in Galaxies (BEINGMgII). Host Galaxies of Ultra-strong MgII Absorbers in Subaru Hyper Suprime-Cam Survey
Ravi Joshi, Sarbeswar Das, Michele Fumagalli +5
We study the galaxies hosting ultra-strong MgII (USMgII) absorbers at small impact parameters of 2" (5 - 20 kpc), spanning a redshift range of , using deep…
The MUSE Ultra Deep Field: A 5 Mpc stretch of the z 4 cosmic web revealed in emission
Davide Tornotti, Michele Fumagalli, Matteo Fossati +7
We detect Ly emission from a ~5 Mpc-long (comoving) portion of the cosmic web hosting an overdensity () of 19 Ly emitters (LAEs) at within the MUSE…
WEAVE First Light Observations: Origin and Dynamics of the Shock Front in Stephan's Quintet
M. I. Arnaudova, S. Das, D. J. B. Smith +62
We present a detailed study of the large-scale shock front in Stephan's Quintet, a byproduct of past and ongoing interactions. Using integral-field spectroscopy from the new Willia…
The MUSE Ultra Deep Field (MUDF) VII. Probing high-redshift gas structures in the surroundings of ALMA-identified massive dusty galaxies
A. Pensabene, M. Galbiati, M. Fumagalli +12
We present new ALMA continuum and spectral observations of the MUSE Ultra Deep Field (MUDF), a arcmin region with ultradeep multiwavelength imaging and spectroscopy…
X-ray view of a massive node of the Cosmic Web at z~3 I. An exceptional overdensity of rapidly accreting SMBHs
A. Travascio, S. Cantalupo, P. Tozzi +16
Exploring SMBH population in protoclusters offers valuable insights into how environment affects SMBH growth. However, research on AGN within these areas is still limited by the sm…
Baryonic Ecosystem in Galaxies (BEINGMgII) -- II. Unveiling the Nature of Galaxies Harboring Cool Gas Reservoirs
S. Das, R. Joshi, R. Chaudhary +4
We search for the galaxies associated with the intervening MgII absorbers over a redshift range of using imaging data from DESI Legacy Imaging Surveys and measu…
Connecting the growth of galaxies to the large-scale environment in a massive node of the Cosmic Web at z~3
M. Galbiati, S. Cantalupo, C. Steidel +10
A direct link between large-scale environment and galaxy properties is very well established in the local universe. However, very little is known about the role of the environment…
A Giant Disk Galaxy Two Billion Years After The Big Bang
Weichen Wang, Sebastiano Cantalupo, Antonio Pensabene +14
Observational studies showed that galaxy disks are already in place in the first few billion years of the universe. The early disks detected so far, with typical half-light radii o…
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…
The stellar population of a Ly emitting group associated with a damped Ly absorber
Giulia Pruto, Michele Fumagalli, Marc Rafelski +4
We present near-infrared observations, acquired with the Wide Field Camera 3 (WFC3) on board of the Hubble Space Telescope (HST), of a Ly double-clumped emitting nebula at $z \a…
The MUSE Ultra Deep Field (MUDF). VI. The relationship between galaxy properties and metals in the circumgalactic medium
Alexander Beckett, Marc Rafelski, Mitchell Revalski +10
We present intial results associating galaxies in the MUSE Ultra Deep Field (MUDF) with gas seen in absorption along the line-of-sight to two bright quasars in this field, to explo…
MUSE Analysis of Gas around Galaxies (MAGG) -- VI. The cool and enriched gas environment of z3 Ly emitters
Marta Galbiati, Rajeshwari Dutta, Michele Fumagalli +2
We present a novel dataset that extends our view of the cosmic gas around z3-4 Ly emitting galaxies (LAEs) in the Muse Analysis of Gas around Galaxies (MAGG) survey by…
The MUSE Ultra Deep Field (MUDF). V. Characterizing the Mass-Metallicity Relation for Low Mass Galaxies at -
Mitchell Revalski, Marc Rafelski, Alaina Henry +13
Using more than 100 galaxies in the MUSE Ultra Deep Field with spectroscopy from the Hubble Space Telescope's Wide Field Camera 3 and the Very Large Telescope's Multi Unit Spectros…
ALMA survey of a massive node of the Cosmic Web at z~3. I. Discovery of a large overdensity of CO emitters
A. Pensabene, S. Cantalupo, C. Cicone +12
Sub-mm surveys toward overdense regions in the early Universe are essential to uncover the obscured star-formation and the cold gas content of assembling galaxies within massive da…
Probing coherence in metal absorption towards multiple images of strong gravitationally lensed quasars
Rajeshwari Dutta, Ana Acebron, Michele Fumagalli +3
We present a tomographic analysis of metal absorption lines arising from the circumgalactic medium (CGM) of galaxies at z~0.5-2, using Multi Unit Spectroscopic Explorer (MUSE) obse…