10 papers · 1 filter
Strong [OIII]H emitters dominated the ionizing budget at
Isak Wold, Sangeeta Malhotra, James Rhoads
We quantify the ionizing photon production at using the deepest spectroscopically confirmed sample of strong [OIII]H emitters (rest-frame EW A) in the Abell 2…
Going Wide and Deep with Roman: The z~6-9 UV luminosity function in a Roman Deep Field
Micaela B. Bagley, Steven L. Finkelstein, James Rhoads +4
We present a trade study of possible ultra-deep surveys with the Nancy Grace Roman Space Telescope, optimizing the depth-area-filter parameter space for high-redshift galaxy scienc…
Galaxy Protoclusters as Drivers of Cosmic Reionization: I. Bubble Overlap at Redshift z ~ 7 in LAGER-z7OD1
Crystal L. Martin, Weida Hu, Isak G. B. Wold +17
Since the launch of JWST, the sample size of reionization-era Lyman-alpha-emitters (LAEs) has been steadily growing; yet inferences about the neutral hydrogen fraction in the inter…
Faint active galactic nuclei supplied 31-75% of hydrogen-ionizing photons at z>5
Mainak Singha, Sangeeta Malhotra, James Ely Rhoads
The origin of the ionizing photons that completed hydrogen reionization remains debated. Using recent JWST and ground-based surveys at 4.5 <= z <= 6.5, we construct a unified rest-…
The atomic gas properties of Green Pea galaxies: Connections to Lyman continuum leakage
Archishman Khasnovis, Nissim Kanekar, Sangeeta Malhotra +1
We have used the Green Bank Telescope to search for H{\sc{i}} 21\,cm emission from 30 Green Pea galaxies (GPs) at , obtaining 7 detections of H{\sc{i}} 21\,cm…
Discovery of Local Analogs to JWST's Little Red Dots
Ruqiu Lin, Zhen-Ya Zheng, Chunyan Jiang +12
Recently, the James Webb Space Telescope (JWST) has revealed a new class of high redshift (high-, ) compact galaxies which are red in the rest-frame optical and blue in the…