TY - JOUR
T1 - A Search for Lensed Lyα Emitters within the Early HETDEX Data Set
AU - Laseter, Isaac H.
AU - Finkelstein, Steven L.
AU - Bagley, Micaela J.
AU - Davis, Dustin M.
AU - Gebhardt, Karl
AU - Gronwall, Caryl
AU - Ciardullo, Robin
AU - Zeimann, Gregory R.
AU - Cooper, Erin Mentuch
AU - Farrow, Daniel
N1 - Funding Information:
We thank Sangeeta Malhotra for stimulating conversations that led to this work, and the staff at McDonald Observatory for their tremendous effort to build this new VIRUS instrument. HETDEX is led by the University of Texas at Austin McDonald Observatory and Department of Astronomy with participation from the Max-Planck-Institut für Extraterrestriche Physik (MPE), Leibniz-Institut füe Astrophysik Potsdam (AIP), Texas A&M University, Pennsylvania State University, Institut für Astrophysik Göttingen, The University of Oxford, Max-Planck-Institut für Astrophysik (MPA), The University of Tokyo, and Missouri University of Science and Technology. In addition to Institutional support, HETDEX is funded by the National Science Foundation (grant AST-0926815), the State of Texas, the US Air Force (AFRL FA9451-04-2- 0355), and generous support from private individuals and foundations. The observations were obtained with the Hobby-Eberly Telescope (HET), which is a joint project of the University of Texas at Austin, the Pennsylvania State University, Ludwig-Maximilians-Universität München, and Georg-August-Universität Göttingen. The HET is named in honor of its principal benefactors, William P. Hobby and Robert E. Eberly. The authors acknowledge the Texas Advanced Computing Center (TACC) at The University of Texas at Austin for providing high-performance computing, visualization, and storage resources that have contributed to the research results reported within this paper. URL: http://www.tacc.utexas.edu The Institute for Gravitation and the Cosmos is supported by the Eberly College of Science and the Office of the Senior Vice President for Research at the Pennsylvania State University. We gratefully thank the University of Texas, the HETDEX collaboration, the University of Texas High Z Group, and The John W. Cox Endowment for Advanced Studies in Astronomy for their generosity. Isaac Laseter and Steven Finkelstein acknowledge support from the National Science Foundation, through grant AST-1908817.
Funding Information:
We thank Sangeeta Malhotra for stimulating conversations that led to this work, and the staff at McDonald Observatory for their tremendous effort to build this new VIRUS instrument. HETDEX is led by the University of Texas at Austin McDonald Observatory and Department of Astronomy with participation from the Max-Planck-Institut für Extraterrestriche Physik (MPE), Leibniz-Institut füe Astrophysik Potsdam (AIP), Texas A&M University, Pennsylvania State University, Institut für Astrophysik Göttingen, The University of Oxford, Max-Planck-Institut für Astrophysik (MPA), The University of Tokyo, and Missouri University of Science and Technology. In addition to Institutional support, HETDEX is funded by the National Science Foundation (grant AST-0926815), the State of Texas, the US Air Force (AFRL FA9451-04-2- 0355), and generous support from private individuals and foundations. The observations were obtained with the Hobby–Eberly Telescope (HET), which is a joint project of the University of Texas at Austin, the Pennsylvania State University, Ludwig-Maximilians-Universität München, and Georg-August-Universität Göttingen. The HET is named in honor of its principal benefactors, William P. Hobby and Robert E. Eberly. The authors acknowledge the Texas Advanced Computing Center (TACC) at The University of Texas at Austin for providing high-performance computing, visualization, and storage resources that have contributed to the research results reported within this paper. URL: http://www.tacc.utexas.edu The Institute for Gravitation and the Cosmos is supported by the Eberly College of Science and the Office of the Senior Vice President for Research at the Pennsylvania State University. We gratefully thank the University of Texas, the HETDEX collaboration, the University of Texas High Z Group, and The John W. Cox Endowment for Advanced Studies in Astronomy for their generosity. Isaac Laseter and Steven Finkelstein acknowledge support from the National Science Foundation, through grant AST-1908817.
Publisher Copyright:
© 2022. The Author(s). Published by the American Astronomical Society.
PY - 2022/11/1
Y1 - 2022/11/1
N2 - The Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) is a large-volume spectroscopic survey without preselection of sources, searching ∼540 deg2 for Lyα emitting galaxies (LAEs) at 1.9 < z < 3.5. Taking advantage of such a wide-volume survey, we perform a pilot study using early HETDEX data to search for lensed Lyα emitters (LAEs). After performing a proof of concept using a previously known lensed LAE covered by HETDEX, we perform a search for previously unknown lensed LAEs in the HETDEX spectroscopic sample. We present a catalog of 26 potential LAEs lensed by foreground, red, non-star-forming galaxies at z ∼ 0.4-0.7. We estimate the magnification for each candidate system, finding 12 candidates to be within the strong lensing regime (magnification μ > 2). Follow-up observations of these potential lensed LAEs have the potential to confirm their lensed nature and explore these distant galaxies in more detail.
AB - The Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) is a large-volume spectroscopic survey without preselection of sources, searching ∼540 deg2 for Lyα emitting galaxies (LAEs) at 1.9 < z < 3.5. Taking advantage of such a wide-volume survey, we perform a pilot study using early HETDEX data to search for lensed Lyα emitters (LAEs). After performing a proof of concept using a previously known lensed LAE covered by HETDEX, we perform a search for previously unknown lensed LAEs in the HETDEX spectroscopic sample. We present a catalog of 26 potential LAEs lensed by foreground, red, non-star-forming galaxies at z ∼ 0.4-0.7. We estimate the magnification for each candidate system, finding 12 candidates to be within the strong lensing regime (magnification μ > 2). Follow-up observations of these potential lensed LAEs have the potential to confirm their lensed nature and explore these distant galaxies in more detail.
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U2 - 10.3847/1538-4357/ac9186
DO - 10.3847/1538-4357/ac9186
M3 - Article
AN - SCOPUS:85142418125
SN - 0004-637X
VL - 940
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 1
M1 - 9
ER -