Improving Photometric Redshifts of Epoch of Reionization Galaxies: A New Empirical Transmission Curve with Neutral Hydrogen Damping Wing Lyα Absorption

• Published in: Astrophysical journal. Letters Vol. 983; no. 1; p. L2
• Main Authors: Asada, Yoshihisa, Desprez, Guillaume, Willott, Chris J., Sawicki, Marcin, Bradač, Maruša, Brammer, Gabriel, Dubath, Florian, Iyer, Kartheik G., Martis, Nicholas S., Muzzin, Adam, Noirot, Gaël, Paltani, Stéphane, Sarrouh, Ghassan T. E., Harshan, Anishya, Markov, Vladan
• Format: Journal Article
• Language: English
• Published: The American Astronomical Society 10.04.2025; IOP Publishing
• Subjects: Circumgalactic medium; High-redshift galaxies; Intergalactic medium; Reionization

We present a new analytical model for the attenuation to Epoch of Reionization (EoR) galaxies by proximate neutral hydrogen gas. Many galaxy spectra in the EoR taken by JWST have shown a flux deficit at wavelengths just redward of the Lyman break, and this has been regarded as resulting from Ly α da...