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50 papers
Spatial Profiles of 3I/ATLAS CN and Ni Outgassing from Keck/KCWI Integral Field Spectroscopy
W. B. Hoogendam, B. J. Shappee, J. J. Wray +11
Cometary activity from interstellar objects provides a unique window into the environs of other stellar systems. We report blue-sensitive integral field unit spectroscopy of the in…
Spectroscopic Ultraluminous Ly-alpha Luminosity Functions at z = 5.7 and z = 6.6 from HEROES: Evidence for Ionized Bubbles
A. J. Taylor, A. J. Barger, L. L. Cowie +2
We present spectroscopic Ly luminosity functions (LFs) at z = 5.7 and z = 6.6 based on a large 209 source sample of Ly emitter (LAE) candidates identified in Subaru/Hyper Sup…
Identifying catastrophic outlier photometric redshift estimates in the COSMOS field with machine learning methods
Mitchell T. Dennis, Esther M. Hu, Lennox L. Cowie
We present the result of two binary classifier ensembled neural networks to identify catastrophic outliers for photo-z estimates within the COSMOS field utilizing only 8 and 5 phot…
A Spectral Atlas of Lyman Alpha Emitters at z = 5.7 and z = 6.6
A. Songaila, L. L. Cowie, A. J. Barger +2
We present two uniformly observed spectroscopic samples of Ly-alpha emitters (LAEs) (127 at z = 5.7 and 82 at z = 6.6), which we use to investigate the evolution of the LAE populat…
HEROES: The Hawaii eROSITA Ecliptic Pole Survey Catalog
A. J. Taylor, A. J. Barger, L. L. Cowie +3
We present a seven band (g, r, i, z, y, NB816, NB921) catalog derived from a Subaru Hyper Suprime-Cam (HSC) imaging survey of the North Ecliptic Pole (NEP). The survey, known as HE…
The Evolution of Lyman Alpha Emitter Line Widths from z=5.7 to z=6.6
A. Songaila, A. J. Barger, L. L. Cowie +2
Recent evidence suggests that high-redshift Ly-alpha emitting galaxies (LAEs) with logL(Ly-alpha) > 43.5 erg/s, referred to as ultraluminous LAEs (ULLAEs), may show less evolution…