activity
20172026
most citedDetecting and Characterizing Young Quasars I: Systemic Redshifts and Proximity Zones Measurements

100 citations · 311 across the 30 of their papers we have counts for

collaborators

33 papers

astro-ph.GA2026

Deep X-ray View of a Distant Protocluster Anchored by a Quasar at : No Evidence for Enhanced X-ray AGN Activity

Shouyi Wang, Feige Wang, Jinyi Yang +22

Whether dense environments accelerate SMBH growth during cosmic reionization remains uncertain because X-ray constraints on protoclusters are rare. We analyze ks of…

astro-ph.HE2026

NEXUS: Discovery of a Luminous Young Transient at

Ming-Yang Zhuang, Yue Shen, Lei Hu +8

We report the discovery of AT 2026abck, a young transient in a star-forming galaxy at , identified from Year-2 observations of the NEXUS JWST treasury program. AT…

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.HE2026

NEXUS: Transient Searches and First Results from Year One Observations

Ming-Yang Zhuang, Lei Hu, Justin D. R. Pierel +10

We describe ongoing efforts of high-redshift transient searches using multi-epoch NIRCam imaging (F200W+F444W) and NIRSpec MSA/PRISM spectroscopy from the NEXUS JWST multi-cycle Tr…

astro-ph.GA2026

Quasar Impostors: Two Extremely UV-Bright () Reionisation-Epoch Galaxies Powered by Very Massive Stars

Daming Yang, Joseph F. Hennawi, Sarah E. I. Bosman +20

The extreme bright end of the galaxy UV luminosity function during reionisation remains poorly constrained, particularly where the galaxy and quasar luminosity functions overlap an…

astro-ph.GA2026

Probing Direct Contributions of Galaxies and AGN to Cosmic Reionization in a Quasar Field J0226+0302 with JWST NIRCam and NIRSpec

Xiangyu Jin, Jinyi Yang, Feige Wang +19

We present JWST Cycle 2 NIRCam and NIRSpec observations in a quasar field J0226+0302 at z=6.5412 to probe the direct connections between the intergalactic medium (IGM), galaxies, a…

astro-ph.GA2026

CO(7-6) and [C I](2-1) survey in z > 6 quasars

Fuxiang Xu, Roberto Decarli, Ran Wang +13

High-redshift () quasars trace the earliest supermassive black holes and intense star formation, offering key laboratories for black hole-galaxy evolution at cosmic dawn…

astro-ph.GA2026

Detection of an Extended Ly Halo around a Broad Absorption Line Quasar with the Keck Cosmic Web Imager

Raymond P. Remigio, Aaron J. Barth, Feige Wang +6

We present the first results from a program searching for extended Ly halos around high redshift () quasars using the red channel of the Keck Cosmic Web Imager (…

astro-ph.GA2026

A Close Quasar Pair in a Massive Galaxy Merger at

Minghao Yue, Xiaohui Fan, Anna-Christina Eilers +3

Close quasar pairs are rare products of galaxy mergers in which both supermassive black holes (SMBHs) are actively accreting, offering strong constraints on merger-driven active ga…

astro-ph.GA2026

Three Hundred Quasars from the Couch: A first look at high-redshift quasar discovery with SPHEREx

Frederick B. Davies, Sarah E. I. Bosman, Arpita Ganguly +9

Photometric selection of luminous high-redshift () quasars is plagued by contamination from numerous low-mass Galactic stars, reddened lower-redshift quasars, as well as…

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.GA2026★ 1 cited

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…

astro-ph.GA2025

ALMA and JWST Imaging of Quasars: No Spatial Position Offset Observed Between Quasars and Their Host Galaxies

Aurora Wilde, Marcel Neeleman, Romain Meyer +4

We present a study determining the spatial offset between the position of the supermassive black hole (as traced through their broad line regions) and the host galaxy in six $z > 6…

astro-ph.GA2025

A close look at the black hole masses and hot dusty toruses of the first quasars with MIRI-MRS

Sarah E. I. Bosman, Javier Álvarez-Márquez, Frederick B. Davies +29

The presence of supermassive black holes (SMBHs, ) at remains a puzzle. While their existence appears to require exotic formation or growth proce…

astro-ph.GA2025

BEES: Quasar lifetime measurements from extended rest-optical emission line nebulae at

Dominika Ďurovčíková, Anna-Christina Eilers, Yuzo Ishikawa +13

Measurements of quasar lifetimes at high redshift indicate that the earliest billion-solar-mass supermassive black holes (SMBHs) have only been active as luminous quasars for less…

astro-ph.GA2025★ 2 cited

A first look at quasar-galaxy clustering at

Jan-Torge Schindler, Joseph F. Hennawi, Frederick B. Davies +8

We present JWST observations of the environments surrounding two high-redshift quasars, J02520503 at and J10072115 at , which enable the first constraints…

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★ 4 cited

JWST ASPIRE: How Did Galaxies Complete Reionization? Evidence for Excess IGM Transmission around Emitters during Reionization

Koki Kakiichi, Xiangyu Jin, Feige Wang +23

The spatial correlation between galaxies and the Ly forest provides insights into how galaxies reionized the Universe. Here, we present initial results on the spatial cross-corr…

astro-ph.GA2024★ 12 cited

A Little Red Dot at within a Large Galaxy Overdensity

Jan-Torge Schindler, Joseph F. Hennawi, Frederick B. Davies +11

The nature of "Little Red Dots" and their relation to other forms of accreting supermassive black holes remain an open question. Here we report the discovery of a Little Red Dot at…

astro-ph.GA2024

Fast Outflow in the Host Galaxy of the Luminous z 7.5 Quasar J10072115

Weizhe Liu, Xiaohui Fan, Jinyi Yang +24

James Webb Space Telescope opens a new window to directly probe luminous quasars powered by billion solar mass black holes in the epoch of reionization and their co-evolution with…

astro-ph.GA2024★ 1 cited

TRINITY VI: Connection between Galaxy Star Formation Rates and Supermassive Black Hole Accretion Rates from z=0-10

Haowen Zhang, Peter Behroozi, Marta Volonteri +6

We infer supermassive black hole (SMBH) accretion rates and Eddington ratios as a function of SMBH/host galaxy mass and redshift with the empirical TRINITY model of dark matter hal…

astro-ph.GA2024

NEXUS: the North ecliptic pole EXtragalactic Unified Survey

Yue Shen, Ming-Yang Zhuang, Junyao Li +8

NEXUS is a JWST Multi-Cycle (Cycles 3-5; 368 primary hrs) GO Treasury imaging and spectroscopic survey around the North Ecliptic Pole. It contains two overlapping tiers. The Wide t…

astro-ph.GA2024★ 1 cited

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…

astro-ph.GA2024★ 21 cited

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…