61 citations · 118 across the 17 of their papers we have counts for
21 papers
A tidal disruption event in a quasar at redshift 7.19
S. Fujimoto, Q. Fei, G. B. Brammer +41
We report a long-lived nuclear transient in GNz7q, a red quasar at powered by a black hole and hosted by a compact, dusty starburst galaxy. Th…
A dense, metal-rich absorber driven by a heavily dust-obscured galaxy: The direct evidence of CGM enrichment at
Qinyue Fei, Seiji Fujimoto, Gabriel Brammer +23
We report the serendipitous discovery of a dense, metal-enriched circumgalactic medium (CGM) absorber at z=7.03, together with its host galaxy, identified along the sightline towar…
Detection of a parsec-scale, compact, and fading ejecta from an accreting massive black hole
Chao Li, Ning Chang, Jun Yang +2
Dwarf galaxies, characterized by their low luminosities and masses, are excellent candidates for searches for intermediate-mass black holes (IMBHs), particularly when they show str…
The Lumina Project: The Demographics of Active Galactic Nuclei from Quasars to Little Red Dots at
Xuejian Shen, Oliver Zier, Aaron Smith +16
High-redshift active galactic nuclei (AGN) serve as powerful probes of early black-hole growth, galaxy formation, and the evolving intergalactic medium (IGM). In this work, we use…
Holmberg IX: A Unique, Infant but Inactive Galaxy as Revealed via a Multiwavelength Approach
Ye-Wei Mao, Luis C. Ho, Alexei V. Moiseev +2
In this Letter, we report a novel discovery of unique characteristics for the tidal dwarf galaxy (candidate) Holmberg IX via a multiwavelength investigation. New observations are t…
The X-ray weakness of Little Red Dots and JWST-selected AGN: comparison with local AGN in different accretion regimes
A. Tortosa, C. Ricci, P. Du +5
We investigate the origin of the observed X-ray weakness in high z LRDs and other JWST-selected broad line AGN by comparing their X-ray and optical properties with those of a diver…
Direct pathway to the Early Supermassive Black Holes: A Red Super-Eddington Quasar in a Massive Starburst Host at
Qinyue Fei, Seiji Fujimoto, Gabriel Brammer +24
We present a panchromatic optical-mm characterization of GNz7q, a recently identified X-ray weak, rapidly growing red quasar embedded within a dusty starburst galaxy at ,…
A Critical Evaluation of the Physical Nature of the Little Red Dots
Kohei Inayoshi, Luis C. Ho
Little Red Dots (LRDs) are a newly identified class of active galactic nuclei (AGNs) uncovered by JWST deep surveys. Their enigmatic properties challenge the canonical AGN paradigm…
Discovery of two little red dots transitioning into quasars
Shuqi Fu, Zijian Zhang, Danyang Jiang +9
James Webb Space Telescope (JWST) has uncovered a new population of compact objects that show a unique V-shaped spectral energy distribution (SED) in the UV and optical wavelength…
COSMOS-3D: Dense Circumnuclear Gas across Black Hole Growth Phases at z ~ 3
Zi-Jian Li, Siwei Zou, Jianwei Lyu +25
We report the discovery of two broad-line X-ray AGNs (cid_414 and cid_947) at z ~ 3 identified in the JWST Cycle 3 COSMOS-3D program using NIRCam F444W grism spectroscopy. Both exh…
Extended Components of Little Red Dots in the Rest-Frame Optical
Yiyang Zhang, Xuheng Ding, Lilan Yang +26
Recent JWST observations have revealed a population of red, compact, high-redshift objects called Little Red Dots (LRDs), whose host components have remained largely unconstrained,…
On the Variability Features of Active Galactic Nuclei in Little Red Dots
Shuying Zhou, Mouyuan Sun, Zijian Zhang +2
The high-redshift () compact sources with ``V-shaped" spectral energy distributions (SEDs), known as Little Red Dots (LRDs), are discovered by the James Webb Space Telescope a…
JWST Insights into Narrow-line Little Red Dots
Zijian Zhang, Linhua Jiang, Weiyang Liu +2
James Webb Space Telescope (JWST) has revealed a population of red and compact objects with a unique V-shape SED at z >= 4 known as Little Red Dots (LRDs). Most of the LRDs with ex…
The Physical Nature of the Off-centered Extended Emission Associated with the Little Red Dots
Chang-Hao Chen, Luis C. Ho, Ruancun Li +1
A significant fraction of little red dots (LRDs) exhibit nearby extended emission of unknown origin. If physically associated with the LRD, this component may trace stellar emissio…
Dust Budget Crisis in Little Red Dots
Kejian Chen, Zhengrong Li, Kohei Inayoshi +1
Little red dots (LRDs), a population of active galactic nuclei (AGNs) recently identified by JWST, are characterized by their compact morphology and red optical continuum emission,…
Composite spectrum of Little Red Dot from a standard inner disk and an unstable outer disk
Chenxuan Zhang, Qingwen Wu, Xiao Fan +6
James Webb Space Telescope (JWST) has revealed a new class of high-redshift, very red, compact broad-line sources, termed as "little red dots" (LRDs). The physical mechanism drivin…
The Emergence of Little Red Dots from Binary Massive Black Holes
Kohei Inayoshi, Jinyi Shangguan, Xian Chen +2
Little red dots (LRDs) are a newly identified class of broad-line active galactic nuclei (AGN) with a distinctive v-shape spectrum characterized by red optical and blue UV continuu…
Discovery of Local Analogs to JWST's Little Red Dots
Ruqiu Lin, Zhen-Ya Zheng, Chunyan Jiang +12
Recently, the James Webb Space Telescope (JWST) has revealed a new class of high redshift (high-, ) compact galaxies which are red in the rest-frame optical and blue in the…
Analysis of Multi-epoch JWST Images of Little Red Dots: Tentative Detection of Variability in a Minority of Sources
Zijian Zhang, Linhua Jiang, Weiyang Liu +1
James Webb Space Telescope (JWST) has revealed a population of red and compact sources at known as ``Little Red Dots'' (LRDs) that are likely active galactic nuclei (…
Little Red Dots: Rapidly Growing Black Holes Reddened by Extended Dusty Flows
Zhengrong Li, Kohei Inayoshi, Kejian Chen +2
The James Webb Space Telescope (JWST) observations have revolutionized extragalactic research, particularly with the discovery of little red dots (LRD), which we propose are dust-r…
XMM-Newton Observations of the Ultraluminous Nuclear X-ray Source in M33
L. Foschini, J. Rodriguez, Y. Fuchs +5
We present observations with XMM-Newton of M33 X-8, the ultraluminous X-ray source (L_{0.5-10 keV} ~ 2x10^39 erg/s) closest to the centre of the galaxy. The best-fit model is simil…