A literature compilation of 260 low-redshift Lyα emitters yields dust reddening and escape-fraction estimates, and SPHEREx simulations predict reliable Paschen-α detections for 14 of 192 modeled galaxies.
Emission-Line Diagnostics of Galaxy Evolution with NGST
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
abstract
As a byproduct of its search for the first star forming galaxies, NGST will obtain high-quality spectra for thousands of galaxies in the redshift range z = 0 - 6 and beyond. Most of the galaxies will possess strong emission-line spectra, and these spectra will provide a wealth of information on their star formation rates, reddening, metal abundances, internal kinematics, and nuclear activity. This will make it possible to construct a comprehensive picture of the buildup of stars, metals, dust, and the nuclei of galaxies with cosmological lookback time. This paper reviews what can be learned from the spectra of distant emission-line galaxies. Simulations of NGST spectra are used to explore the instrumental tradeoffss for these applications, and the respective roles of NGST and groundbased surveys.
fields
astro-ph.GA 1years
2026 1verdicts
CONDITIONAL 1representative citing papers
citing papers explorer
-
Constructing a Hydrogen Line Library for Ly{\alpha} Emitters at Low Redshifts (z < 0.4): Estimating Dust Extinction and Assessing Paschen line Detectability with SPHEREx
A literature compilation of 260 low-redshift Lyα emitters yields dust reddening and escape-fraction estimates, and SPHEREx simulations predict reliable Paschen-α detections for 14 of 192 modeled galaxies.