74 citations · 231 across the 18 of their papers we have counts for
21 papers
ALMA2040: Understanding the Early Assembly of Galaxies - The Formation of Star-Forming Clumps and their Role in Shaping Galaxy Evolution
Anita Zanella, Andreas L. Faisst, Rodrigo Herrera-Camus +25
Astrophysics seeks to explain how galaxies form and evolve through the interplay of stars, gas, and dust. Giant molecular clouds (GMCs), the main reservoirs and sites of star forma…
GA-NIFS view of LAP1: Assembly of Pop~III stellar clusters during EoR
J. Scholtz, R. Maiolino, S. Carniani +28
Lensed and Pristine 1 (LAP1) is one of the most promising candidates for the detection of so-called Pop~III stars at . In this work, we present new high-spectral-resoluti…
A Cosmic Archipelago of lensed metal-poor galaxies at
A. Bolamperti, M. Messa, A. Zanella +21
The Cosmic Archipelago is an ensemble of galaxies, strongly lensed by the cluster MACSJ0416, showing extreme physical properties at . We combine JWST/NIRCam with deep VL…
Resolved Maps of Gas and Dust in a Massive Quiescent Galaxy at z=2 from INQUEST-JWST: Evidence of Accretion and Rejuvenation
Sai Gangula, Andrew B. Newman, Meng Gu +10
Quiescent galaxies in the distant universe exhibit a range of gas content that may indicate a variety of quenching processes are at play. Mapping the distribution and kinematics of…
A faint M Lyman-continuum leaker candidate in the epoch of reionization: Unprecedented Ly properties at z=5.725
M. Messa, E. Vanzella, T. Morishita +10
We report the unprecedented Ly properties of AMORE6, an extremely metal-poor (), low-mass (), and ultracompact (effec…
Gas excitation of post-starburst galaxies at 0.6 < z < 1.3
A. Zanella, S. Belli, F. M. Valentino +1
Molecular gas traces the fuel for star formation and the processes that regulate it. Observing its physical state (e.g. excitation) reveals when and why galaxies quench. We observe…
Parametric strong lensing model of the galaxy cluster Abell 2390 from Euclid and MUSE observations
D. Abriola, M. Lombardi, C. Grillo +14
We present a new high precision parametric strong lensing total mass reconstruction of the Euclid Early Release Observations (ERO) galaxy cluster Abell 2390, at redshift z = 0.231.…
A Pristine Star-Forming Complex at z=4.19
E. Vanzella, M. Messa, A. Zanella +14
We report the discovery of a faint (M_1700 ~ -12.2), oxygen-deficient strongly-lensed ionizing source -- dubbed LAP2 (Lensed And Pristine 2) -- at a spectroscopic redshift of z=4.1…
The z = 9.625 Cosmic Gems Galaxy was a "Compact Blue Monster" Propelled by Massive Star Clusters
E. Vanzella, M. Messa, A. Adamo +36
The recent discovery of five massive stellar clusters at z=9.625 in the Cosmic Gems has raised the question about the formation mechanism of star clusters in the first half Gyr aft…
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…
Cosmography from accurate mass modeling of the lens group SDSS J0100+1818: five sources at three different redshifts
A. Bolamperti, C. Grillo, G. B. Caminha +6
Systems where multiple sources at different redshifts are strongly lensed by the same deflector allow one to directly investigate the evolution of the angular diameter distances wi…
The next step in galaxy cluster strong lensing: modeling the surface brightness of multiply-imaged sources
Ana Acebron, Claudio Grillo, Sherry H. Suyu +12
Overcoming both modeling and computational challenges, we present, for the first time, the extended surface-brightness distribution model of a strongly-lensed source in a complex g…
Extreme Ionizing Properties of Metal-Poor, Muv ~ -12 Star Complex in the first Gyr
E. Vanzella, F. Loiacono, M. Messa +38
We report the serendipitous discovery of a faint (M_UV > -12.2), low-metallicity (Z ~ 0.02 Zsun), ionizing source (dubbed T2c) with a spectroscopic redshift of z=6.146. T2c is part…
Anatomy of a z=6 Lyman-α emitter down to parsec scales: extreme UV slopes, metal-poor regions and possibly leaking star clusters
Matteo Messa, E. Vanzella, F. Loiacono +31
We present a detailed JWST/NIRSpec and NIRCam analysis of a gravitationally-lensed galaxy () at redshift 6.14 magnified by the Hubble Frontier Field galaxy cluster MAC…
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…
UV-continuum slopes of individual clumps and their evolution
A. Bolamperti, A. Zanella, U. Meštrić +11
We study the ultraviolet (UV) continuum slope of a sample of 166 clumps, individual star-forming regions observed in high redshift galaxies. They are hosted by 67 galaxies with…
The large molecular gas fraction of post-starburst galaxies at z > 1
A. Zanella, F. Valentino, A. Gallazzi +3
Post-starburst galaxies are sources that had the last major episode of star formation about 1 Gyr before the epoch of the observations and are on their way to quiescence. It is imp…
An extremely metal poor star complex in the reionization era: Approaching Population III stars with JWST
E. Vanzella, F. Loiacono, P. Bergamini +31
We present JWST/NIRSpec integral field spectroscopy (IFS) of a lensed Population III candidate stellar complex (dubbed Lensed And Pristine 1, LAP1), with a lensing-corrected stella…
Clues on the presence and segregation of very massive stars in the Sunburst Lyman-continuum cluster at z=2.37
U. Mestric, E. Vanzella, A. Upadhyaya +15
We report the identification of very massive stars (VMS; mass \,\msun) that may be segregated in the center of the young massive star cluster at =2.37 hosted in the lense…
Reconstructing the extended structure of multiple sources strongly lensed by the ultra-massive elliptical galaxy SDSS J0100+1818
A. Bolamperti, C. Grillo, R. Cañameras +2
We study the total and baryonic mass distributions of the deflector SDSS J0100+1818 through a full strong lensing analysis. The system is composed by an ultra-massive early-type ga…
Scrutiny of a very young, metal-poor star-forming Lyα-emitter at z ~ 3.7
E. Iani, A. Zanella, J. Vernet +9
The origin of the Lyman- (Ly) emission in galaxies is a long-standing issue: despite several processes known to originate this line (e.g. AGN, star formation, cold accretion,…