10 papers
Galaxy Metallicity Gradients in the Reionization Epoch from the FIRE-2 Simulations
Xunda Sun, Xin Wang, Fangzhou Jiang +10
We employ the high-redshift suite of FIRE-2 cosmological hydrodynamic zoom-in simulations to investigate the evolution of gas-phase metallicity radial gradients in galaxies in the…
Discovery of a gas-enshrouded broad-line AGN at z 7
Qianqiao Zhou, Xin Wang, Hang Zhou +9
The Lyman-alpha (Ly) absorption profile in star-forming galaxies serves as a powerful tracer of the extended, dense neutral hydrogen in their surroundings during the Epoch of R…
The Dichotomy in the Nuclear and Host Galaxy Properties of High-redshift Quasars
Ruancun Li, Luis C. Ho, Chang-Hao Chen
The early growth of high-redshift quasars and their host galaxies raises critical questions about their cosmic evolution. We exploit the angular resolution and sensitivity of NIRCa…
Baryonic Ecosystem IN Galaxies (BEINGMgII) -- III. Cool gas reservoirs at in the Dark Energy Survey
Reena Chaudhary, Ravi Joshi, Sarbeswar Das +5
We investigate the origin of intervening cool MgII absorption detected in the spectra of background quasars and the nature of associated galaxies across a broad redshift range of $…
Overmassive Black holes live in compact galaxies in the early Universe
Yuxuan Wu, Tao Wang, Daizhong Liu +9
A significant population of quasars have been found to exist within the first Gyr of cosmic time. Most of them have high black hole (BH) masses ($M_{\rm BH} \sim 10^{8-10} M_{\odot…
Low-velocity precessing jets can explain observed morphologies in the Twin Radio Galaxy TRG J104454+354055
Santanu Mondal, Gourab Giri, Ravi Joshi +3
Our understanding of large-scale radio jets in merger systems has been drastically improved in the era of VLA, VLBA/EVN, uGMRT, and MeerKAT. Twin Radio Galaxies (TRGs) are the rare…