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The properties of He II 1640 emitters at z ~ 2.5-5 from the VANDELS survey
A. Saxena, L. Pentericci, M. Mirabelli +24
Strong He II emission is produced by low-metallicity stellar populations. Here, we aim to identify and study a sample of He II -emitting galaxies at redshifts of $z \sim 2.5…
Space Telescope and Optical Reverberation Mapping Project. VIII. Time Variability of Emission and Absorption in NGC 5548 Based on Modeling the Ultraviolet Spectrum
G. A. Kriss, G. De Rosa, J. Ely +164
We model the ultraviolet spectra of the Seyfert 1 galaxy NGC~5548 obtained with the Hubble Space Telescope during the 6-month reverberation-mapping campaign in 2014. Our model of t…
Near-Infrared Spectroscopy of Galaxies During Reionization: Measuring CIII] in a Galaxy at
Taylor A. Hutchison, Casey Papovich, Steven L. Finkelstein +9
We present Keck/MOSFIRE -band spectroscopy targeting CIII] 1907,1909 in a galaxy previously identified via Ly emission. We detect strong line emission at $1…
UV Diagnostics of Galaxies from the Peak of Star-Formation to the Epoch of Reionization
Casey Papovich, Dan Stark, Steve Finkelstein +19
The rest-frame UV emission from massive stars contains a wealth of information about the physical nature and conditions of star formation in galaxies. Using studies of the rest-fra…
Unveiling the Phase Transition of the Universe During the Reionization Epoch with Lyman-alpha
Steven L. Finkelstein, Marusa Bradac, Caitlin Casey +15
The epoch of reionization (6 < z < 10) marks the period in our universe when the first large galaxies grew to fruition, and began to affect the universe around them. Massive stars,…
Texas Spectroscopic Search for Ly Emission at the End of Reionization II. The Deepest Near-Infrared Spectroscopic Observation at
Intae Jung, Steven L. Finkelstein, Mark Dickinson +12
Realizing the utility of Ly emission to trace the evolution of the intergalactic medium (IGM) during the epoch of reionization requires deep spectroscopy across the boundary of…