The Lyman alpha reference sample. VII. Spatially resolved H$\alpha$ kinematics [PDF]
, 2015 We present integral field spectroscopic observations with the Potsdam Multi Aperture Spectrophotometer of all 14 galaxies in the $z\sim 0.1$ Lyman Alpha Reference Sample (LARS).
Adamo, Angela +21 more
core +5 more sources
Effects of Dust Geometry in Lyα Galaxies at z = 4.4 [PDF]
, 2007 Equivalent widths (EWs) observed in high-redshift Lyα galaxies could be stronger than the EW intrinsic to the stellar population if dust is present residing in clumps in the interstellar medium (ISM).
S. Finkelstein +4 more
semanticscholar +1 more source
First HETDEX Spectroscopic Determinations of Lyα and UV Luminosity Functions at z = 2–3: Bridging a Gap between Faint AGNs and Bright Galaxies [PDF]
Astrophysical Journal, 2021 We present Lyα and ultraviolet (UV)-continuum luminosity functions (LFs) of galaxies and active galactic nuclei (AGNs) at z = 2.0–3.5 determined by the untargeted optical spectroscopic survey of the Hobby–Eberly Telescope Dark Energy Experiment (HETDEX).
Yechi Zhang +23 more
semanticscholar +1 more source
Hubble Space Telescope Observations of Element Abundances in Low-Redshift Damped Lyα Galaxies and Implications for the Global Metallicity-Redshift Relation [PDF]
, 2004 Most models of cosmic chemical evolution predict that the mass-weighted mean interstellar metallicity of galaxies should rise with time from a low value ~1/30 solar at z ~ 3 to a nearly solar value at z = 0.
V. Kulkarni +6 more
semanticscholar +1 more source
Catch Me if You Can: Biased Distribution of Lyα-emitting Galaxies according to the Viewing Direction [PDF]
Astrophysical Journal Letters, 2021 We report that Lyα-emitting galaxies (LAEs) may not faithfully trace the cosmic web of neutral hydrogen (H i), but their distribution is likely biased depending on the viewing direction.
R. Momose +6 more
semanticscholar +1 more source
Evolution of the Lyman-alpha Halos around High-Redshift Radio Galaxies [PDF]
, 2009 We have obtained the first constraints on extended Ly-alpha emission at z ~ 1 in a sample of five radio galaxies. We detect Ly-alpha emission from four of the five galaxies.
Andrew W. Zirm +27 more
core +1 more source
Are High-Redshift Damped Lyα Galaxies Lyman Break Galaxies? [PDF]
, 2002 We use deep HST STIS and NICMOS images of three spectroscopically confirmed galaxy counterparts of high-redshift damped Lyα (DLA) absorbers (one of which is a new discovery) to test the hypothesis that high-redshift DLA galaxies are Lyman break galaxies.
Damped Ly Galaxies +5 more
semanticscholar +1 more source
The HETDEX Survey: The Lyα Escape Fraction from 3D-HST Emission-Line Galaxies at z ∼ 2 [PDF]
Astrophysical Journal, 2021 In this work, we measure the Lyα escape fraction of 935 [O iii]-emitting galaxies between 1.9 < z < 2.35 by comparing stacked spectra from the Hubble Space Telescope/WFC3's near-IR grism to corresponding stacks from the Hobby–Eberly Telescope Dark Energy
L. Weiss +15 more
semanticscholar +1 more source
Delayed Massive-star Mechanical Feedback at Low Metallicity
The Astrophysical Journal, 2023 The classical model of massive-star mechanical feedback is based on effects at solar metallicity ( Z _⊙ ), yet feedback parameters are very different at low metallicity.
Michelle C. Jecmen, M. S. Oey
doaj +1 more source
The N/Si Abundance Ratio in 15 Damped Lyα Galaxies: Implications for the Origin of Nitrogen [PDF]
, 1997 Calculations derived from Galactic chemical evolution models indicate that there should be considerable scatter in the observed N/O ratios at a fixed metallicity (O/H) for galaxies with very low metallicities, due to the delayed release of primary N from
Limin Lu, W. Sargent, T. Barlow
semanticscholar +1 more source