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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
The Hobby–Eberly Telescope Dark Energy Experiment (HETDEX) Survey Design, Reductions, and Detections
Astrophysical Journal, Volume 923, No. 2, Article 217, Year 2021
Notification
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Description
We describe the survey design, calibration, commissioning, and emission-line detection algorithms for the Hobby–Eberly Telescope Dark Energy Experiment (HETDEX). The goal of HETDEX is to measure the redshifts of over a million Lyα emitting galaxies between 1.88 < z < 3.52, in a 540 deg2 area encompassing a comoving volume of 10.9 Gpc3. No preselection of targets is involved; instead the HETDEX measurements are accomplished via a spectroscopic survey using a suite of wide-field integral field units distributed over the focal plane of the telescope. This survey measures the Hubble expansion parameter and angular diameter distance, with a final expected accuracy of better than 1%. We detail the project’s observational strategy, reduction pipeline, source detection, and catalog generation, and present initial results for science verification in the Cosmological Evolution Survey, Extended Groth Strip, and Great Observatories Origins Deep Survey North fields. We demonstrate that our data reach the required specifications in throughput, astrometric accuracy, flux limit, and object detection, with the end products being a catalog of emission-line sources, their object classifications, and flux-calibrated spectra. © 2021. The Author(s). Published by the American Astronomical Society.
Authors & Co-Authors
Gebhardt, Karl
United States, Austin
The University of Texas at Austin
Mentuch Cooper, Erin
United States, Austin
The University of Texas at Austin
Ciardullo, Robin
United States, University Park
Pennsylvania State University
Acquaviva, Viviana
United States, New York
The City University of new York
United States, New York
Simons Foundation
Bender, Ralf
Germany, Garching Bei Munchen
Max Planck Institute for Extraterrestrial Physics
Germany, Munich
Ludwig-maximilians-universität München
Castanheira, Bárbara Garcia
United States, Waco
Baylor University
Dalton, Gavin B.
United Kingdom, Oxford
University of Oxford
Davis, Dustin M.
United States, Austin
The University of Texas at Austin
De Jong, Roelof S.
Germany, Potsdam
Leibniz Institute for Astrophysics Potsdam
DePoy, Darren L.
United States, College Station
Texas A&m University
Drory, Niv
United States, Austin
The University of Texas at Austin
Fabricius, Maximilian H.
Germany, Garching Bei Munchen
Max Planck Institute for Extraterrestrial Physics
Germany, Munich
Ludwig-maximilians-universität München
Farrow, Daniel J.
Germany, Garching Bei Munchen
Max Planck Institute for Extraterrestrial Physics
Germany, Munich
Ludwig-maximilians-universität München
Finkelstein, Steven L.
United States, Austin
The University of Texas at Austin
Froning, Cynthia S.
United States, Austin
The University of Texas at Austin
Gawiser, Eric J.
United States, New Brunswick
Rutgers University–new Brunswick
Gronwall, Caryl A.
United States, University Park
Pennsylvania State University
Hill, Gary J.
United States, Austin
The University of Texas at Austin
Hopp, Ulrich
Germany, Garching Bei Munchen
Max Planck Institute for Extraterrestrial Physics
Germany, Munich
Ludwig-maximilians-universität München
Janowiecki, Steven
United States, Austin
The University of Texas at Austin
Jarvis, Matthew J.
United Kingdom, Oxford
University of Oxford
Jeong, Donghui
United States, University Park
Pennsylvania State University
Jogee, Shardha
United States, Austin
The University of Texas at Austin
Kakuma, Ryota
Japan, Tokyo
The University of Tokyo
Kollatschny, Wolfram
Germany, Gottingen
Georg-august-universität Göttingen
Komatsu, Eiichiro
Germany, Garching Bei Munchen
Max Planck Institute for Astrophysics
Japan, Tokyo
The University of Tokyo
Krumpe, Mirko
Germany, Potsdam
Leibniz Institute for Astrophysics Potsdam
Landriau, Martin
United States, Berkeley
Lawrence Berkeley National Laboratory
Liu, Chenxu
United States, Austin
The University of Texas at Austin
MacQueen, Phillip J.
United States, Austin
The University of Texas at Austin
Marshall, Jennifer L.
United States, College Station
Texas A&m University
Mawatari, Ken
Japan, Tokyo
The University of Tokyo
Mukae, Shiro
Japan, Tokyo
The University of Tokyo
Ono, Yoshiaki
Japan, Tokyo
The University of Tokyo
Ouchi, Masami
Japan, Tokyo
The University of Tokyo
Japan, Mitaka
National Institutes of Natural Sciences - National Astronomical Observatory of Japan
Papovich, Casey J.
United States, College Station
Texas A&m University
Sakai, Nao
Japan, Tokyo
The University of Tokyo
Saito, Shun
Japan, Tokyo
The University of Tokyo
United States, Rolla
Missouri University of Science and Technology
P. Schneider, Donald P.
United States, University Park
Pennsylvania State University
Shetrone, Matthew D.
United States, Santa Cruz
University of California, Santa Cruz
Sneden, Christopher A.
United States, Austin
The University of Texas at Austin
Steinmetz, Matthias
Germany, Potsdam
Leibniz Institute for Astrophysics Potsdam
Thomas, Benjamin P.
United States, Austin
The University of Texas at Austin
Urrutia, Tanya
Germany, Potsdam
Leibniz Institute for Astrophysics Potsdam
Wisotzki, Lutz
Germany, Potsdam
Leibniz Institute for Astrophysics Potsdam
Zeimann, Gregory R.
Unknown Affiliation
Zhang, Yechi
Japan, Tokyo
The University of Tokyo
Statistics
Citations: 48
Authors: 47
Affiliations: 21
Identifiers
Doi:
10.3847/1538-4357/ac2e03
ISSN:
0004637X
Research Areas
Environmental
Study Design
Cross Sectional Study
Study Approach
Quantitative