activity
20152026
most citedProbing the thermal state of the intergalactic medium at with the transmission spikes in high-resolution Ly forest spectra

128 citations · 1k across the 37 of their papers we have counts for

collaborators
Showing astro-ph.GAShow all

8 papers · 1 filter

astro-ph.GA2026

Nearly pristine gas in a galaxy 1 billion years after the Big Bang

Sarah E. I. Bosman, Frederick B. Davies, Louise Welsh +22

Excitation of carbon and oxygen ions is the primary mechanism by which collapsing gas clouds dissipate heat to form new stars. At early cosmic times, in galaxies with chemically pr…

astro-ph.GA2026

Uncertainty-Aware Deep Learning for the Ly Forest: CNN-Based Absorber Detection and Characterization

Paryag Sharma, Vikram Khaire, Ting-Yun Cheng +2

The Ly forest is a powerful probe of the intergalactic medium and small-scale matter distribution, but deriving absorber properties traditionally requires computationally expens…

astro-ph.GA2026

NISER-IUCAA New Simulations of JWST GAlaxies and Quasars(NINJA): Properties of galaxies at

Ranit Behera, Raghunathan Srianand, Nishikanta Khandai +1

We present the NINJA suite of cosmological hydrodynamical simulations developed to investigate galaxy formation and evolution at in the era of JWST. Using our fiducia…

astro-ph.GA2026★ 1 cited

E-XQR-30: Evidence for an Increase in the Ionization State of Metal Absorbers from z~6 to z~2

Stephanie Rowlands, R. L. Davies, E. Ryan-Weber +15

We investigate the evolution of the ionization state of metal-enriched gas in and around galaxies near the epoch of reionization using a sample of 488 metal absorption systems at 4…

astro-ph.GA2024★ 10 cited

The impact of faint AGN discovered by JWST on reionization

Shikhar Asthana, Martin G. Haehnelt, Girish Kulkarni +4

The relative contribution of emission from stellar sources and accretion onto supermassive black holes to reionization has been brought into focus again by the apparent high abunda…

astro-ph.GA2023★ 80 cited

XQR-30: the ultimate XSHOOTER quasar sample at the reionization epoch

Valentina D'Odorico, E. Banados, G. D. Becker +46

The final phase of the reionization process can be probed by rest-frame UV absorption spectra of quasars at z>6, shedding light on the properties of the diffuse intergalactic mediu…

astro-ph.GA2023★ 14 cited

Role of ionizing background on the statistics of metal absorbers in hydrodynamical simulations

Sukanya Mallik, Raghunathan Srianand, Soumak Maitra +2

We study the statistical properties of O VI, C IV, and Ne VIII absorbers at low- (i.e., ) using Sherwood simulations with "WIND" only and "WIND+AGN" feedback and Massive…

astro-ph.GA2020★ 1 cited

Redshift space three-point correlation function of IGM at

Soumak Maitra, Raghunathan Srianand, Prakash Gaikwad +1

The Ly forest decomposed into Voigt profile components allow us to study clustering properties of the intergalactic medium and its dependence on various physical quantities. Her…