activity
20242026
collaborators

8 papers

astro-ph.GA2026

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

Extreme Neutral Outflow in a non-AGN Quiescent Galaxy at z~1.3

Yang Sun, Zhiyuan Ji, George H. Rieke +8

We report the discovery of a substantial sodium doublet (Na D 5890, 5896Ã )-traced neutral outflow in the quiescent galaxy JADES-GS-206183 at . Its JWST/NIRSpec-MSA…

astro-ph.GA2025

The Relation Between AGN and Host Galaxy Properties in the JWST Era: II. The merger-driven evolution of Seyferts at Cosmic Noon

Nina Bonaventura, Jianwei Lyu, George H. Rieke +3

In Paper I, we exploited the unsurpassed resolution and depth of JWST/NIRCam imagery to investigate the relationship between AGN and host-galaxy properties in the JWST era, finding…

astro-ph.GA2025

The quasar ULAS J1120+0641 May Never Reach a "Normal" Black Hole to Stellar Mass Ratio

Meredith A. Stone, George H. Rieke, Jianwei Lyu +4

JWST observations of quasars in the Epoch of Reionization have revealed that many lie in host galaxies that are severely undermassive relative to the supermassive black holes. It i…

astro-ph.GA2025

Unveiling the Aromatic and Aliphatic Universe at Redshifts 0.2--0.5 with JWST NIRCam/WFSS

Jianwei Lyu, Xuejuan Yang, Aigen Li +4

Utilizing deep NIRCam/WFSS data from JWST's FRESCO program, we spectroscopically survey the 3.3 aromatic and 3.4 aliphatic C--H stretching emission bands of polycyclic…

astro-ph.GA2025

Fading Light, Fierce Winds: JWST Snapshot of a Sub-Eddington Quasar at Cosmic Dawn

Jianwei Lyu, George H. Rieke, Meredith Stone +6

The majority of most luminous quasars during the epoch of reionization accrete near or above the Eddington limit, marking the vigorous growth of primitive supermassive black holes…