activity
20222026
most citedA Negative Long Lag from the Optical to the UV Continuum in Fairall 9

18 citations · 19 across the 8 of their papers we have counts for

collaborators

8 papers

astro-ph.GA2026

Calcium Triplet Absorption is Common around Little Red Dots

Jenny E. Greene, Hanpu Liu, Raphael E. Hviding +29

We present new evidence for an optically thick atmosphere surrounding Little Red Dots (LRDs) in the form of Ca absorption at rest-frame 8500A, the calcium triplet (CaT). Building o…

astro-ph.GA2026

Synthetic Spectral Library of Optically Thick Atmospheres for Little Red Dots

Hanpu Liu, Yan-Fei Jiang, Eliot Quataert +3

Little Red Dots (LRDs) challenge conventional models of active galactic nuclei. At rest-optical-to-near-infrared (IR) wavelengths, these compact extragalactic objects show blackbod…

astro-ph.GA2026

Water absorption confirms cool atmospheres in two little red dots

Bingjie Wang, Joel Leja, Ivo Labbe +35

Little red dots (LRDs) are an abundant population of compact high-redshift sources with red rest-frame optical continua, discovered by the James Webb Space Telescope (JWST). Their…

astro-ph.HE2026

Spectral Appearance of Self-gravitating Disks Powered by Stellar Objects: Universal Effective Temperature in the Optical Continuum and Application to Little Red Dots

Yi-Xian Chen, Hanpu Liu, Ruancun Li +6

We revisit the spectral appearance of extended self-gravitating accretion disks surrounding compact central objects such as supermassive black holes. Using dust-poor opacities, we…

astro-ph.HE2025

Pulsational Instability of Quasi-Stars: Interpreting the Variability of Little Red Dots

Matteo Cantiello, Jake B. Hassan, Rosalba Perna +5

The JWST discovery of "Little Red Dots" (LRDs) has revealed a population of compact, red sources at that likely host supermassive black holes (SMBHs). Recent observat…

astro-ph.GA2025

Do Little Red Dots Vary?

Amy Secunda, Rachel S. Somerville, Yan-Fei Jiang +3

Little red dots (LRDs), high-redshift, compact, red objects with V-shaped spectra, are one of the most exciting and perplexing discoveries made by the James Webb Space Telescope (J…

astro-ph.GA2024★ 1 cited

Evidence for Intrinsic X-ray Weakness Among Red Quasars at Cosmic Noon

Yilun Ma, Andy Goulding, Jenny E. Greene +3

Quasar feedback is a key ingredient in shaping galaxy evolution. A rare population of extremely red quasars (ERQs) at are often associated with high-velocity [O III]$\lambd…

astro-ph.GA2022★ 18 cited

A Negative Long Lag from the Optical to the UV Continuum in Fairall 9

Philippe Z. Yao, Amy Secunda, Yan-Fei Jiang +2

We report the detection of a long-timescale negative lag, where the blue bands lag the red bands, in the nearby Seyfert 1 galaxy Fairall 9. Active Galactic Nuclei (AGN) light curve…