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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…
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…
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…
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…
The imprint of AGN-driven outflows on the CGM: the case of Lyα nebulae around high-z quasars
Silvia C. Rueda-Vargas, Vincenzo Mainieri, Giulia Tozzi +5
Some cosmological hydrodynamical simulations predict that outflows driven by active galactic nuclei (AGN) play a key role in powering the Ly nebulae observed around high-redshif…
Beneath the Surface: >85% of z>5.9 QSOs in Massive Host Galaxies are UV-Faint
R. J. Bouwens, E. Banados, R. Decarli +20
We use [CII] observations of a large quasi-stellar object (QSO) sample to segregate sources by host galaxy mass, aiming to identify those in the most massive hosts. [CII] luminosit…
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…
Near-Infrared Spectroscopy with IGRINS-2 for Studying Multiple Stellar Populations in Globular Clusters
Dongwook Lim, Young-Wook Lee, Sol Yun +53
Recent advancements in near-infrared (NIR) spectroscopy have opened new opportunities for studying multiple stellar populations in globular clusters (GCs), particularly for newly d…
Insights on Metal Enrichment and Environmental Effect at with JWST ASPIRE/EIGER and Chemical Evolution Model
Zihao Li, Koki Kakiichi, Lise Christensen +15
We present the mass-metallicity relation (MZR) for a parent sample of 604 galaxies at with \OIII\ doublets detected, using the deep JWST/NIRCam wide field slitless sp…
The [NII] 205 m line emission from high-z SMGs and QSOs
Saimurali Kolupuri, Roberto Decarli, Roberto Neri +8
We present [NII] 205 m fine structure line observations of three submillimeter galaxies (SMGs) and three quasar host galaxies at 4z6 using the Institut de ra…
The host galaxies of radio-loud quasars at z>5 with ALMA
C. Mazzucchelli, R. Decarli, S. Belladitta +13
The interaction between radio-jets and quasar host galaxies plays a paramount role in quasar/galaxy co-evolution. However, very little has been known so far about this interaction…
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…
A quasar-galaxy merger at : rapid host growth via accretion of two massive satellite galaxies
Roberto Decarli, Federica Loiacono, Emanuele Paolo Farina +38
We present JWST/NIRSpec Integral Field Spectroscopy in the rest-frame optical bands of the system PJ308-21, a quasar at caught as its host galaxy interacts with companio…
Feeding Hidden Monsters: a Super-Eddington accreting Black Hole ~1.5 Gyr after the Big Bang
Hyewon Suh, Julia Scharwächter, Emanuele Paolo Farina +13
Recent James Webb Space Telescope (JWST) observations have revealed a surprisingly abundant population of faint, dusty active galactic nuclei (AGNs) at z~4-7. Together with the pre…
Evidence of Pop~III stars' chemical signature in neutral gas at z~6. A study based on the E-XQR-30 spectroscopic sample
Alessio Sodini, Valentina D'Odorico, Stefania Salvadori +16
This study explores the metal enrichment signatures attributed to the first generation of stars (PopIII) in the Universe, focusing on the E-XQR-30 sample. We aim to identify traces…
Quasar Island -- Three new quasars, including a lensed candidate, identified with contrastive learning
Xander Byrne, Romain A. Meyer, Emanuele Paolo Farina +5
Of the hundreds of quasars discovered to date, only one is known to be gravitationally lensed, despite the high lensing optical depth expected at . High-reds…
A quasar-galaxy merger at : black hole mass and quasar properties from the NIRSpec spectrum
Federica Loiacono, Roberto Decarli, Marco Mignoli +31
We present JWST/NIRSpec integral field data of the quasar PJ308-21 at . As shown by previous ALMA and HST imaging, the quasar has two companion sources, interacting with…
A SPectroscopic survey of biased halos In the Reionization Era (ASPIRE): Impact of Galaxies on the CGM Metal Enrichment at z > 6 Using the JWST and VLT
Siwei Zou, Zheng Cai, Feige Wang +27
We characterize the multiphase circumgalactic medium and galaxy properties at z = 6.0-6.5 in four quasar fields from the James Webb Space Telescope A SPectroscopic survey of biased…
Is GN-z11 powered by a super-Eddington massive black hole?
Maulik Bhatt, Simona Gallerani, Andrea Ferrara +6
Observations of quasars powered by supermassive black holes (SMBHs; ) challenge our current understanding of early black hole (BH) f…
A SPectroscopic survey of biased halos In the Reionization Era (ASPIRE): JWST Discovers an Overdensity around a Metal Absorption-selected Galaxy at
Yunjing Wu, Feige Wang, Zheng Cai +27
The launch of opens a new window for studying the connection between metal-line absorbers and galaxies at the end of the Epoch of Reionization (EoR). Previous studies…
Circumgalactic Ly emission around submillimeter-bright galaxies with different quasar contributions
Vale González Lobos, Fabrizio Arrigoni Battaia, Seok-Jun Chang +6
We present VLT/MUSE observations targeting the extended Lyman- (Ly) emission of five high-redshift (3-4) submillimeter galaxies (SMGs) with increasing quasar (QSO) rad…
XQR-30: Black Hole Masses and Accretion Rates of 42 z>6 Quasars
C. Mazzucchelli, M. Bischetti, V. D'Odorico +19
We present bolometric luminosities, black hole masses and Eddington ratios for 42 luminous quasars at z>6 using high signal-to-noise ratio VLT/X-Shooter spectra, acquired in the en…
A SPectroscopic survey of biased halos In the Reionization Era (ASPIRE): JWST Reveals a Filamentary Structure around a z=6.61 Quasar
Feige Wang, Jinyi Yang, Joseph F. Hennawi +56
We present the first results from the JWST ASPIRE program (A SPectroscopic survey of biased halos In the Reionization Era). This program represents an imaging and spectroscopic sur…
A SPectroscopic survey of biased halos In the Reionization Era (ASPIRE): A First Look at the Rest-frame Optical Spectra of Quasars Using JWST
Jinyi Yang, Feige Wang, Xiaohui Fan +53
Studies of rest-frame optical emission in quasars at have historically been limited by the wavelengths accessible by ground-based telescopes. The James Webb Space Telescope (…