212 citations · 919 across the 32 of their papers we have counts for
32 papers
Chasing Cosmic Reionization: An Extremely Faint Highly Magnified Source at with high
Sofía Rojas-Ruiz, Matteo Messa, Eros Vanzella +5
We present JWST NIRSpec IFU spectroscopic measurements of one of the faintest (M) known ionizing sources at , dubbed Small And Lensed Source Arc, SALSA. This s…
First-star imprints in a metal-poor galaxy overdensity near the end of reionization
Zihao Li, Koki Kakiichi, Lise Christensen +24
The first generation of stars, known as Population III (Pop III), formed from primordial gas consisting solely of hydrogen and helium and is believed to have emerged only a few hun…
TDCOSMO XXV: Measuring H0 to 6.5% precision with quasar strong lensing and maximally flexible mass-sheet dynamics
William Sheu, Tommaso Treu, Martin Millon +16
We present a blind time-delay cosmography measurement of the Hubble-Lemaître constant based on the quadruply imaged quasar SDSSJ1433+6007. Our analysis combines deep Hubble S…
ASPIRE: The Environments and Dark Matter Halos of Luminous Quasars in the Epoch of Reionization
Feige Wang, Jaclyn B. Champagne, Jiamu Huang +42
We present a systematic study of the environments of 25 luminous quasars at from the ASPIRE program. Using JWST/NIRCam WFSS data, we identified 487 galaxies at $5.3 \less…
Shedding the envelope: JWST reveals a kiloparsec-scale [OIII]-weak Balmer shell around a z=7.64 quasar
Julien Wolf, Eduardo Bañados, Xiaohui Fan +25
Luminous quasars at the redshift frontier z>7 serve as stringent probes of super-massive black hole formation and they are thought to undergo much of their growth obscured by dense…
The BoRG- Survey: Analogs at to the UV-luminous Galaxy Population at
Sofía Rojas-Ruiz, Guido Roberts-Borsani, Takahiro Morishita +7
The population of bright galaxies at discovered by JWST, including the so-called "blue monsters", has been difficult to reconcile with standard galaxy evolution models…
Lyman-Break Galaxies in the Mpc-Scale Environments Around Three Quasars With JWST Imaging
Maria Pudoka, Feige Wang, Xiaohui Fan +16
We study the Mpc-scale environments of the three highest redshift luminous quasars at (J031343.84-180636.40, J134208.11+092838.61, and J100758.27+211529.21) to understa…
Kiloparsec-Scale Alignment of a Radio Jet with Cool Gas and Dust in a z~6 Quasar
Fabian Walter, Eduardo Banados, Chris Carilli +11
We present high-angular resolution (0.068", ~400pc) ALMA imaging of the [CII] line and dust continuum emission of PSO J352.4034-15.3373, a radio-loud quasar at z=5.83. The observat…
First Measurements of Black Hole Accretion and Radio-jet Timescales in a Young Quasar at the Edge of Reionization
Sofía Rojas-Ruiz, Emmanuel Momjian, Frederick B. Davies +8
We present the first study dedicated to measuring the timescales for black hole accretion and jet launch in a quasar at the edge of Reionization, PSO J352.4034-15.3373 at z = 5.832…
NuSTAR observations of a varying-flux quasar in the Epoch of Reionization
Lea Marcotulli, Thomas Connor, Eduardo Bañados +13
With enough X-ray flux to be detected in a 160s scan by SRG/eROSITA, the quasar CFHQS J142952+544717 is, by far, the most luminous X-ray source known at . We pres…
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…
Seven wonders of Cosmic Dawn: JWST confirms a high abundance of galaxies and AGNs at z 9-11 in the GLASS field
L. Napolitano, M. Castellano, L. Pentericci +24
We present JWST/NIRSpec PRISM follow-up of candidate galaxies at z=9-11 selected from deep JWST/NIRCam photometry in GLASS-JWST Early Release Science data. We spectroscopically con…
A Quasar-Anchored Protocluster at z=6.6 in the ASPIRE Survey: II. An Environmental Analysis of Galaxy Properties in an Overdense Structure
Jaclyn B. Champagne, Feige Wang, Jinyi Yang +21
We present paper II comprising a 35 arcmin \textit{JWST}/NIRCam imaging and wide-field slitless spectroscopy mosaic centered on J03053150, a luminous quasar at . The…
A Quasar-Anchored Protocluster at z=6.6 in the ASPIRE Survey: I. Properties of [OIII] Emitters in a 10 Mpc Overdensity Structure
Jaclyn B. Champagne, Feige Wang, Haowen Zhang +25
ASPIRE (A SPectroscopic survey of bIased halos in the Reionization Era) is a quasar legacy survey primarily using \textit{JWST} to target a sample of 25 quasars with NIRCam s…
Far-Infrared and [CII] observations of a z=7 blazar
Eduardo Banados, Yana Khusanova, Roberto Decarli +7
We present millimeter observations of the host galaxy of the most distant blazar known, VLASSJ041009.05-013919.88 (hereafter J0410-0139) at z=7, using ALMA and NOEMA observations.…
The BoRG- Survey: Abundance and Mass-to-light Ratio of Luminous Galaxies from Independent Sight Lines with NIRSpec
Sofía Rojas-Ruiz, Micaela B. Bagley, Guido Roberts-Borsani +12
We present new results on the rest-frame UV luminosity function (UVLF) and stellar mass-to-light (M/L) ratio of bright (M mag) spectroscopically-confirmed gal…
A SPectroscopic survey of biased halos In the Reionization Era (ASPIRE): Broad-line AGN at revealed by JWST/NIRCam WFSS
Xiaojing Lin, Feige Wang, Xiaohui Fan +33
Low-luminosity AGNs with low-mass black holes (BHs) in the early universe are fundamental to understanding the BH growth and their co-evolution with the host galaxies. Utilizing JW…
The BoRG-JWST Survey: Program Overview and First Confirmations of Luminous Reionization-Era Galaxies from Pure-Parallel Observations
Guido Roberts-Borsani, Micaela Bagley, Sofía Rojas-Ruiz +18
We present the BoRG-JWST survey, a combination of two JWST Cycle 1 programs aimed at obtaining NIRSpec spectroscopy of representative, UV-bright galaxy candidates across 2…
A blazar in the epoch of reionization
Eduardo Banados, Emmanuel Momjian, Thomas Connor +21
Relativistic jets are thought to play a crucial role in the formation and evolution of massive galaxies and supermassive black holes. Blazars, which are quasars with jets aligned a…
Exploring the Mpc Environment of the Quasar ULAS J1342+0928 at z = 7.54
Sofía Rojas-Ruiz, Chiara Mazzucchelli, Steven L. Finkelstein +10
Theoretical models predict that z~6 quasars are hosted in the most massive halos of the underlying dark matter distribution and thus would be immersed in protoclusters of galaxies.…
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…
XQR-30: the ultimate XSHOOTER quasar sample at the reionization epoch
Valentina D'Odorico, E. Banados, G. D. Becker +46
The final phase of the reionization process can be probed by rest-frame UV absorption spectra of quasars at z>6, shedding light on the properties of the diffuse intergalactic mediu…
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 (…