activity
20232026
most citedThe structural properties of multiple populations in the dynamically young globular cluster NGC 2419

10 citations · 28 across the 8 of their papers we have counts for

collaborators

10 papers

astro-ph.GA2026

: a close quasar pair at cosmic dawn in the Aether survey

Silvia Onorato, Emanuele Paolo Farina, Roberto Decarli +32

We present the discovery and first characterization of : the most compact known quasar pair candidate in the Epoch of Reionization, with a projected se…

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

To be lensed or not to be lensed: on the nature of the alleged high-z lensed quasars J0109-5424 and P170+20

Aurora Mata-Sanchez, Emanuele P. Farina, Anniek J. Gloudemans +17

We present a detailed multi-wavelength analysis of two gravitationally lensed z>6 quasar candidates: J0109-5424 and P170+20. Using JWST/NIRSpec near-infrared data from the Aether s…

astro-ph.GA2026

Rapid growth in a dual AGN during a gas-rich merger at z~4.5

Hyewon Suh, Roberto Decarli, Emanuele Paolo Farina +15

The late stages of galaxy mergers - when two supermassive black holes (SMBHs) reach kiloparsec-scale separations - represent a critical phase for understanding SMBH growth, galaxy…

astro-ph.GA2026

Clustering of z~6.6 Quasars and [O III] Emitters Constrains Host Halo Masses and Duty Cycles in 25 ASPIRE Fields

Jiamu Huang, Joseph Hennawi, Elia Pizzati +21

We use data from the JWST ASPIRE Wide Field Slitless Spectroscopy (WFSS) program to measure the auto-correlation function of [O,{\sc iii}] emitters at 5.37.0 and the quasar--[…

astro-ph.GA2025★ 9 cited

Discovery and characterization of 25 new quasars at 4.6 < z < 6.9 from wide-field multi-band surveys

Silvia Belladitta, Eduardo Bañados, Zhang-Liang Xie +18

Luminous quasars at provide key insights into the early Universe. Their rarity necessitates wide-field multi-band surveys to efficiently separate them from the main astrophys…

astro-ph.GA2025★ 1 cited

Homogeneous measurements of proximity zone sizes for 59 quasars in the Epoch of Reionization

Silvia Onorato, Joseph F. Hennawi, Elia Pizzati +2

The overionized regions surrounding high-redshift quasars, known as proximity zones, provide a window into the interaction between supermassive black holes (SMBHs) and the intergal…

astro-ph.GA2024★ 7 cited

Optical and near-infrared spectroscopy of quasars at : public data release and composite spectrum

Silvia Onorato, Joseph F. Hennawi, Jan-Torge Schindler +18

We present optical and near-infrared (NIR) spectroscopic observations for a sample of quasars at with absolute magnitudes at Å in the range $-28.82…

astro-ph.CO2023★ 1 cited

First measurement of the Mg II forest correlation function in the Epoch of Reionization

Suk Sien Tie, Joseph F. Hennawi, Feige Wang +5

In the process of producing the roughly three ionizing photons per atom required to reionize the IGM, the same massive stars explode and eject metals into their surroundings. While…

astro-ph.GA2023★ 10 cited

The structural properties of multiple populations in the dynamically young globular cluster NGC 2419

Silvia Onorato, Mario Cadelano, Emanuele Dalessandro +3

NGC 2419 is likely the globular cluster (GC) with the lowest dynamical age in the Galaxy. This makes it an extremely interesting target for studying the properties of its multiple…