Publications (16)
Project Lyman: Quantifying 11 Gyrs of Metagalactic Ionizing Background Evolution
Stephan R. McCandliss, B-G Andersson, Nils Bergvall +23
The timing and duration of the reionization epoch is crucial to the emergence and evolution of structure in the universe. The relative roles that star-forming galaxies, active gala…
Mock Galaxy Surveys for HST and JWST from the IllustrisTNG Simulations
Gregory F. Snyder, Theodore Pena, L. Y. Aaron Yung +3
We present and analyze a series of synthetic galaxy survey fields based on the IllustrisTNG Simulation suite. With the Illustris public data release and JupyterLab service, we gene…
Unresolved z~8 point sources and their impact on the bright end of the galaxy luminosity function
Yuzo Ishikawa, Takahiro Morishita, Massimo Stiavelli +7
The distribution and properties of the first galaxies and quasars are critical pieces of the puzzle in understanding galaxy evolution and cosmic reionization. Previous studies have…
THRILS -- The High-(Redshift+Ionization) Line Search: Program Description & Redshift Catalog
Taylor A. Hutchison, Rebecca L. Larson, Pablo Arrabal Haro +46
To date, many spectroscopic confirmations of z>7 galaxies have been obtained using JWST/NIRSpec prism observations, with most of their physical properties inferred from these obser…
What turns galaxies off? The different morphologies of star-forming and quiescent galaxies since z~2 from CANDELS
Eric F. Bell, Arjen van der Wel, Casey Papovich +21
We use HST/WFC3 imaging from the CANDELS Multicycle Treasury Survey, in conjunction with the Sloan Digital Sky Survey, to explore the evolution of galactic structure for galaxies w…
Constraints on the Horizontal-Branch Morphology of the Globular Cluster M79 (NGC 1904) from Optical and Far-UV Observations
W. Van Dyke Dixon, Arthur F. Davidsen, Ben Dorman +1
The globular cluster M79 was observed with the Hopkins Ultraviolet Telescope (HUT) during the Astro-1 space shuttle mission in 1990 December. The cluster's far-UV integrated spectr…
The Habitable Exoplanet Observatory (HabEx) Mission Concept Study Final Report
B. Scott Gaudi, Sara Seager, Bertrand Mennesson +183
The Habitable Exoplanet Observatory, or HabEx, has been designed to be the Great Observatory of the 2030s. For the first time in human history, technologies have matured sufficient…
A Census of the Bright z=8.5-11 Universe with the Hubble and Spitzer Space Telescopes in the CANDELS Fields
Steven L. Finkelstein, Micaela Bagley, Mimi Song +21
We present the results from a new search for candidate galaxies at z ~ 8.5-11 discovered over the 850 arcmin^2 area probed by the Cosmic Assembly Near-Infrared Deep Extragalactic L…
Reionization with star-forming galaxies: insights from the Low-z Lyman Continuum Survey
Maxime Trebitsch, Pratika Dayal, John Chisholm +18
The fraction of ionizing photons escaping from galaxies, , is at the same time a crucial parameter in modelling reionization and a very poorly known quantity, especially a…
Stellar Masses of High-Redshift Galaxies
Casey Papovich, Mark Dickinson, Harry Ferguson
We present constraints on the stellar-mass distribution of distant galaxies. These stellar-mass estimates derive from fitting population-synthesis models to the galaxies' observed…
The Low-redshift Lyman-continuum Survey: [S II]-deficiency and the leakage of ionizing radiation
Bingjie Wang, Timothy M. Heckman, Ricardo AmorÃn +19
The relationship between galaxy characteristics and the reionization of the universe remains elusive, mainly due to the observational difficulty in accessing the Lyman continuum (L…
Comparison of optical observational capabilities for the coming decades: ground versus space
Matt Mountain, Roeland van der Marel, Remi Soummer +7
Ground-based adaptive optics (AO) in the infrared has made exceptional advances in approaching space-like image quality at higher collecting area. Optical-wavelength applications a…
Optimized Photometric Redshifts for the Cosmic Assembly Near-Infrared Deep Extragalactic Legacy Survey (CANDELS)
Dritan Kodra, Brett H. Andrews, Jeffrey A. Newman +27
We present the first comprehensive release of photometric redshifts (photo-z's) from the Cosmic Assembly Near-Infrared Deep Extragalactic Legacy Survey (CANDELS) team. We use stati…
Addressing Decadal Survey Science through Community Access to Highly Multiplexed Spectroscopy with BigBOSS on the KPNO Mayall Telescope
Caty Pilachowski, Carles Badenes, Stephen Bailey +87
This document summarizes the results of a community-based discussion of the potential science impact of the Mayall+BigBOSS highly multiplexed multi-object spectroscopic capability.…
Tracing Lyman-alpha and Lyman Continuum Escape in Galaxies with Mg II Emission
Xinfeng Xu, Alaina Henry, Timothy Heckman +29
Star-forming galaxies are considered the likeliest source of the H I ionizing Lyman Continuum (LyC) photons that reionized the intergalactic medium at high redshifts. However, abov…
The WFPC2 Archival Parallels Project
Yogesh Wadadekar, Stefano Casertano, Richard Hook +4
We describe the methods and procedures developed to obtain a near-automatic combination of WFPC2 images obtained as part of the WFPC2 Archival Pure Parallels program. Several techn…