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Title: Design for the First Narrowband Filter for the Dark Energy Camera: Optimizing the LAGER Survey for z ~ 7 Galaxies

Abstract

In this study, we present the design for the first narrowband filter, NB964, for the Dark Energy Camera (DECam), which is operated on the 4-m Blanco Telescope at the Cerro Tololo Inter-American Observatory. The NB964 filter profile is essentially defined by maximizing the power of searching for Lyman-alpha emitting galaxies (LAEs) in the epoch of reionization, with the consideration of the night sky background in the near-infrared and the DECam quantum efficiency. The NB964 filter was manufactured by Materion in 2015. It has a central wavelength of 964.2 nm and a full width at half maximum (FWHM) of 9.2 nm. An NB964 survey named Lyman Alpha Galaxies in the Epoch of Reionization (LAGER) has been ongoing since December 2015. Here, we report results of lab tests, on-site tests, and observations with the NB964 filter. The excellent performances of this filter ensure that the LAGER project is able to detect LAEs at z ~ 7 with a high efficiency.

Authors:
ORCiD logo [1];  [2];  [3];  [2];  [4];  [5];  [1];  [3];  [6];  [7];  [8];  [9];  [9];  [10];  [11];  [12];  [13];  [13];  [3];  [13] more »;  [3];  [13];  [13];  [14];  [15] « less
  1. Shanghai Astronomical Observatory, Shanghai (China). CAS Key Lab. for Research in Galaxies and Cosmology
  2. Goddard Space Flight Center, Greenbelt, MD (United States). Astrophysics Science Division; Arizona State Univ., Tempe, AZ (United States). School of Earth and Space Exploration
  3. Univ. of Science and Technology of China, Hefei, Anhui (China). CAS Key Lab. for Research in Galaxies and Cosmology, Dept. of Astronomy
  4. National Optical Astronomy Observatory, Casilla, La Serena (Chile). Cerro Tololo Inter-American Observatory
  5. Materion Precision Optics, Westford, MA (United States)
  6. European Southern Observatory, Casilla, Santiago (Chile)
  7. Peking Univ., Beijing (China). The Kavli Inst. for Astronomy and Astrophysics
  8. Carnegie Observatories (Chile). Las Campanas Observatory; Pontificia Univ. Católica de Chile, Santiago (Chile). Inst. de Astrofísica, Facultad de Física
  9. Pontificia Univ. Católica de Chile, Santiago (Chile). Inst. de Astrofísica, Facultad de Física
  10. National Optical Astronomy Observatory, Tucson, AZ (United States)
  11. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States). Particle Physics Division
  12. Carnegie Observatories (Chile). Las Campanas Observatory
  13. Arizona State Univ., Tempe, AZ (United States). School of Earth and Space Exploration
  14. Goddard Space Flight Center, Greenbelt, MD (United States). Astrophysics Science Division
  15. Chinese Academy of Sciences, Nanjing (China). Purple Mountain Observatory
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1560852
Report Number(s):
[arXiv:1903.09045; FERMILAB-PUB-19-335-AE]
[Journal ID: ISSN 0004-6280; oai:inspirehep.net:1741173]
Grant/Contract Number:  
[AC02-07CH11359]
Resource Type:
Accepted Manuscript
Journal Name:
Publications of the Astronomical Society of the Pacific
Additional Journal Information:
[ Journal Volume: 131; Journal Issue: 1001]; Journal ID: ISSN 0004-6280
Publisher:
Astronomical Society of the Pacific (ASP)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; methods; observational

Citation Formats

Zheng, Zhen-Ya, Rhoads, James E., Wang, Jun-Xian, Malhotra, Sangeeta, Walker, Alistair, Mooney, Thomas, Jiang, Chunyan, Hu, Weida, Hibon, Pascale, Jiang, Linhua, Infante, Leopoldo, Barrientos, L. Felipe, Galaz, Gaspar, Valdes, Francisco, Wester, William, Yang, Huan, Coughlin, Alicia, Harish, Santosh, Kang, Wenyong, Khostovan, Ali Ahmad, Kong, Xu, Perez, Lucia A., Pharo, John, Wold, Isak, and Zheng, XianZhong. Design for the First Narrowband Filter for the Dark Energy Camera: Optimizing the LAGER Survey for z ~ 7 Galaxies. United States: N. p., 2019. Web. doi:10.1088/1538-3873/ab1c32.
Zheng, Zhen-Ya, Rhoads, James E., Wang, Jun-Xian, Malhotra, Sangeeta, Walker, Alistair, Mooney, Thomas, Jiang, Chunyan, Hu, Weida, Hibon, Pascale, Jiang, Linhua, Infante, Leopoldo, Barrientos, L. Felipe, Galaz, Gaspar, Valdes, Francisco, Wester, William, Yang, Huan, Coughlin, Alicia, Harish, Santosh, Kang, Wenyong, Khostovan, Ali Ahmad, Kong, Xu, Perez, Lucia A., Pharo, John, Wold, Isak, & Zheng, XianZhong. Design for the First Narrowband Filter for the Dark Energy Camera: Optimizing the LAGER Survey for z ~ 7 Galaxies. United States. doi:10.1088/1538-3873/ab1c32.
Zheng, Zhen-Ya, Rhoads, James E., Wang, Jun-Xian, Malhotra, Sangeeta, Walker, Alistair, Mooney, Thomas, Jiang, Chunyan, Hu, Weida, Hibon, Pascale, Jiang, Linhua, Infante, Leopoldo, Barrientos, L. Felipe, Galaz, Gaspar, Valdes, Francisco, Wester, William, Yang, Huan, Coughlin, Alicia, Harish, Santosh, Kang, Wenyong, Khostovan, Ali Ahmad, Kong, Xu, Perez, Lucia A., Pharo, John, Wold, Isak, and Zheng, XianZhong. Mon . "Design for the First Narrowband Filter for the Dark Energy Camera: Optimizing the LAGER Survey for z ~ 7 Galaxies". United States. doi:10.1088/1538-3873/ab1c32.
@article{osti_1560852,
title = {Design for the First Narrowband Filter for the Dark Energy Camera: Optimizing the LAGER Survey for z ~ 7 Galaxies},
author = {Zheng, Zhen-Ya and Rhoads, James E. and Wang, Jun-Xian and Malhotra, Sangeeta and Walker, Alistair and Mooney, Thomas and Jiang, Chunyan and Hu, Weida and Hibon, Pascale and Jiang, Linhua and Infante, Leopoldo and Barrientos, L. Felipe and Galaz, Gaspar and Valdes, Francisco and Wester, William and Yang, Huan and Coughlin, Alicia and Harish, Santosh and Kang, Wenyong and Khostovan, Ali Ahmad and Kong, Xu and Perez, Lucia A. and Pharo, John and Wold, Isak and Zheng, XianZhong},
abstractNote = {In this study, we present the design for the first narrowband filter, NB964, for the Dark Energy Camera (DECam), which is operated on the 4-m Blanco Telescope at the Cerro Tololo Inter-American Observatory. The NB964 filter profile is essentially defined by maximizing the power of searching for Lyman-alpha emitting galaxies (LAEs) in the epoch of reionization, with the consideration of the night sky background in the near-infrared and the DECam quantum efficiency. The NB964 filter was manufactured by Materion in 2015. It has a central wavelength of 964.2 nm and a full width at half maximum (FWHM) of 9.2 nm. An NB964 survey named Lyman Alpha Galaxies in the Epoch of Reionization (LAGER) has been ongoing since December 2015. Here, we report results of lab tests, on-site tests, and observations with the NB964 filter. The excellent performances of this filter ensure that the LAGER project is able to detect LAEs at z ~ 7 with a high efficiency.},
doi = {10.1088/1538-3873/ab1c32},
journal = {Publications of the Astronomical Society of the Pacific},
number = [1001],
volume = [131],
place = {United States},
year = {2019},
month = {6}
}

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