9 papers
A quasar hatching from a buried red phase at z = 3.7
Zheng Ma, Yongda Zhu, Zhiyuan Ji +21
We present JADES-GS 209777, previously cataloged as CANDELS J033238.02-274626.2, hereafter "the Hatchling," a red quasar at . While the source has been reported in earlier…
The Small-scale Structures in the Wind of Messier 82
Yucheng Guo, Timothy Heckman, Sanchayeeta Borthakur +10
Small-scale multiphase structure plays a central role in galactic-wind evolution, yet the parsec-scale morphology and excitation of the warm ionised gas remain poorly constrained.…
Active Galactic Nuclei-driven Metallicity Enrichment in the Interstellar Medium of Mrk 573
D. Å. Król, P. Zhu, G. Fabbiano +5
We present the first spatially resolved at pc scale application of AGN-specific metallicity diagnostics for the nearby Compton-thick Seyfert 2 galaxy Mrk 573 ()…
Metallicity Gradients in Modern Cosmological Simulations II: The Role of Bursty Versus Smooth Feedback at High-Redshift
Alex M. Garcia, Paul Torrey, Aniket Bhagwat +22
The distribution of gas-phase metals within galaxies encodes the impact of stellar feedback on galactic evolution. At high-redshift, when galaxies are rapidly assembling, feedback-…
The Nature of Nitrogen Enhanced High Redshift Galaxies
Peixin Zhu, James Trussler, Lisa J. Kewley
Recent JWST observations have revealed a population of high-redshift galaxies () exhibiting unexpectedly bright ultraviolet (UV) nitrogen emission lines. The strong N II…
Only Nitrogen-Enhanced Galaxies Have Detectable UV Nitrogen Emission Lines at High Redshift
Peixin Zhu, Lisa J. Kewley, Tiger Yu-Yang Hsiao +1
The detections of bright UV nitrogen emission lines in some high-redshift galaxies suggest unexpectedly high nitrogen-to-oxygen ratios () compared to loca…