9.8k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Istituto Nazionale di Fisica Nucleare, Sezione di PisaIT2.2k papers
- University of PisaIT2.1k papers
- Massachusetts Institute of TechnologyUS2k papers
- University of PaduaIT1.9k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT1.7k papers
- Centre National de la Recherche ScientifiqueFR1.7k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT1.7k papers
- Sapienza University of RomeIT1.6k papers
- University of Wisconsin–MadisonUS1.6k papers
- The Ohio State UniversityUS1.6k papers
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- University of BolognaIT1.5k papers
27 papers · 2 filters
Faint progenitors of luminous quasars: why don't we see them?
Edwige Pezzulli, Rosa Valiante, Maria C. Orofino +3
Observational searches for faint active nuclei at have been extremely elusive, with a few candidates whose high- nature is still to be confirmed. Interpreting this lack…
Quasar UV luminosity function evolution up to z=8
Serena Manti, Simona Gallerani, Andrea Ferrara +2
We study the redshift evolution of the quasar UV Luminosity Function (LF) for 0.5 < z < 6.5, by collecting the most up to date observational data and, in particular, the recently d…
Triggering the formation of direct collapse black holes by their congeners
Bin Yue, Andrea Ferrara, Fabio Pacucci +1
Direct collapse black holes (DCBHs) are excellent candidates as seeds of supermassive black holes (SMBHs) observed at $z \gsim 6$. The formation of a DCBH requires a strong externa…
The Discovery of Gas-Rich, Dusty Starbursts in Luminous Reddened Quasars at with ALMA
Manda Banerji, C. L. Carilli, G. Jones +5
We present ALMA observations of cold dust and molecular gas in four high-luminosity, heavily reddened (A mag) Type 1 quasars at with virial M$_{\rm…
Inferring physical properties of galaxies from their emission line spectra
Graziano Ucci, Andrea Ferrara, Simona Gallerani +1
We present a new approach based on Supervised Machine Learning (SML) algorithms to infer key physical properties of galaxies (density, metallicity, column density and ionization pa…
Molecular gas on large circumgalactic scales at z=3.47
Michele Ginolfi, Roberto Maiolino, Tohru Nagao +9
We report ALMA observations of the most massive (star forming) galaxy in the redshift range 3<z<4 within the whole GOODS-S field. We detect a large elongated structure of molecular…
Zooming on the internal structure of galaxies
A. Pallottini, A. Ferrara, S. Gallerani +3
We present zoom-in, AMR, high-resolution ( pc) simulations of high-redshift () galaxies with the aim of characterizing their internal properties and interste…
3C 279 in Outburst in June 2015: A Broadband-SED Study Based on the INTEGRAL Detection
Eugenio Bottacini, Markus Boettcher, Elena Pian +1
Blazars radiate from radio through gamma-ray frequencies thereby being ideal targets for multifrequency studies. Such studies allow constraining the properties of the emitting jet.…
Unveiling the first black holes with JWST: multi-wavelength spectral predictions
Priyamvada Natarajan, Fabio Pacucci, Andrea Ferrara +4
Growing the supermassive black holes (~10^9 Msun) that power the detected luminous, highest redshift quasars (z > 6) from light seeds - the remnants of the first stars - within ~ 1…
ALMA [CII] detection of a redshift 7 lensed galaxy behind RXJ1347.1-1145
Maruša Bradač, Diego Garcia-Appadoo, Kuang-Han Huang +13
We present the results of ALMA spectroscopic follow-up of a Lyman- emitting galaxy behind the cluster RXJ1347-1145. We report the detection of [CII]158m line fully…
Metals in the z~3 intergalactic medium: results from an ultra-high signal-to-noise ratio UVES quasar spectrum
V. D'Odorico, S. Cristiani, E. Pomante +13
In this work, we investigate the abundance and distribution of metals in the intergalactic medium (IGM) at through the analysis of an ultra-high sign…
On the Formation of Molecular Clumps in QSO Outflows
Andrea Ferrara, Evan Scannapieco
We study the origin of the cold molecular clumps in quasar outflows, recently detected in CO and HCN emission. We first describe the physical properties of such radiation-driven ou…
Coevolution of metallicity and star formation in galaxies to z=3.7: II. A theoretical model
Leslie Hunt, Pratika Dayal, Laura Magrini +1
Recent work suggests that galaxy evolution, and the build-up of stellar mass (M*) over cosmic time, is characterized by changes with redshift of star formation rate (SFR) and oxyge…
Coevolution of metallicity and star formation in galaxies to z=3.7: I. A fundamental plane
Leslie Hunt, Pratika Dayal, Laura Magrini +1
With the aim of understanding the coevolution of star formation rate (SFR), stellar mass (M*), and oxygen abundance (O/H) in galaxies up to redshift z=3.7, we have compiled the lar…
Dark-ages reionization and galaxy formation simulation--VII. The sizes of high-redshift galaxies
Chuanwu Liu, Simon J. Mutch, Gregory B. Poole +5
We investigate high-redshift galaxy sizes using a semi-analytic model constructed for the Dark-ages Reionization And Galaxy-formation Observables from Numerical Simulation project.…
The infrared-dark dust content of high redshift galaxies
A. Ferrara, H. Hirashita, M. Ouchi +1
We present a theoretical model aimed at explaining the IRX- relation for high redshift (z >5) galaxies. Recent observations (Capak+2015; Bouwens+2016) have shown that early Lyma…
Molecular clouds photoevaporation and FIR line emission
L. Vallini, A. Ferrara, A. Pallottini +1
With the aim of improving predictions on far infrared (FIR) line emission from Giant Molecular Clouds (GMC), we study the effects of photoevaporation (PE) produced by external far-…
The problematic growth of dust in high redshift galaxies
Andrea Ferrara, Serena Viti, Cecilia Ceccarelli
Dust growth via accretion of gas species has been proposed as the dominant process to increase the amount of dust in galaxies. We show here that this hypothesis encounters severe d…
Constraints on photoionization feedback from number counts of ultra-faint high-redshift galaxies in the Frontier Fields
M. Castellano, B. Yue, A. Ferrara +11
We exploit a sample of ultra-faint high-redshift galaxies (demagnified HST magnitude ) in the Frontier Fields clusters A2744 and M0416 to constrain a theoretical mod…
Lyα emission line reconstruction for high- QSOs
Bradley Greig, Andrei Mesinger, Ian D. McGreer +2
We introduce an intrinsic Lyα emission line profile reconstruction method for high- quasars (QSOs). This approach utilises a covariance matrix of emission line properties obtain…
Dark-ages reionization and galaxy-formation simulation - VI. The origins and fate of the highest known redshift galaxy
Simon J. Mutch, Chuanwu Liu, Gregory B. Poole +7
Using Hubble data, including new grism spectra, Oesch et al. recently identified GN-z11, an =-21.1 galaxy at =11.1 (just 400Myr after the big bang). With an estim…
Formation of supermassive black hole seeds
Muhammad A. Latif, Andrea Ferrara
The detection of quasars at unveils the presence of supermassive black holes (BHs) of a few billion solar masses. The rapid formation process of these extreme objects remains…
Fast outflows and star formation quenching in quasar host galaxies
S. Carniani, A. Marconi, R. Maiolino +17
Negative feedback from active galactic nuclei (AGN) is considered a key mechanism in shaping galaxy evolution. Fast, extended outflows are frequently detected in the AGN host galax…
First Identification of Direct Collapse Black Hole Candidates in the Early Universe in CANDELS/GOODS-S
Fabio Pacucci, Andrea Ferrara, Andrea Grazian +3
The first black hole seeds, formed when the Universe was younger than 500 Myr, are recognized to play an important role for the growth of early (z ~ 7) super-massive black holes. W…