A Magellan M2FS Spectroscopic Survey of Galaxies at 5.5 < z < 6.8: Program Overview and a Sample of the Brightest Lyα Emitters
We present a spectroscopic survey of high-redshift, luminous galaxies over four square degrees on the sky, aiming to build a large and homogeneous sample of Ly alpha emitters (LAEs) at z approximate to 5.7 and 6.5, and Lyman-break galaxies (LBGs) at 5.5 < z < 6.8. The fields that we choose to...
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ndltd-arizona.edu-oai-arizona.openrepository.com-10150-6258062017-10-11T03:00:28Z A Magellan M2FS Spectroscopic Survey of Galaxies at 5.5 < z < 6.8: Program Overview and a Sample of the Brightest Lyα Emitters Jiang, Linhua Shen, Yue Bian, Fuyan Zheng, Zhen-Ya Wu, Jin Oyarzún, Grecco A. Blanc, Guillermo A. Fan, Xiaohui Ho, Luis C. Infante, Leopoldo Wang, Ran Wu, Xue-Bing Mateo, Mario Bailey, John I. Crane, Jeffrey D. Olszewski, Edward W. Shectman, Stephen Thompson, Ian Walker, Matthew G. Univ Arizona, Steward Observ cosmology: observations galaxies: high-redshift galaxies: formation galaxies: evolution We present a spectroscopic survey of high-redshift, luminous galaxies over four square degrees on the sky, aiming to build a large and homogeneous sample of Ly alpha emitters (LAEs) at z approximate to 5.7 and 6.5, and Lyman-break galaxies (LBGs) at 5.5 < z < 6.8. The fields that we choose to observe are well studied, such as by the Subaru XMM-Newton Deep Survey and COSMOS. They have deep optical imaging data in a series of broad and narrow bands, allowing for the efficient selection of galaxy candidates. Spectroscopic observations are being carried out using the multi-object spectrograph M2FS on the Magellan Clay telescope. M2FS is efficient enough to identify high-redshift galaxies, owing to its 256 optical fibers deployed over a circular field of view 30' in diameter. We have observed similar to 2.5 square degrees. When the program is completed, we expect to identify more than 400 bright LAEs at z approximate to 5.7 and 6.5, and a substantial number of LBGs at z >= 6. This unique sample will be used to study a variety of galaxy properties and to search for large protoclusters. Furthermore, the statistical properties of these galaxies will be used to probe cosmic reionization. We describe the motivation, program design, target selection, and M2FS observations. We also outline our science goals, and present a sample of the brightest LAEs at z approximate to 5.7 and 6.5. This sample contains 32 LAEs with Ly alpha luminosities higher than 10(43) erg s(-1). A few of them reach >= 3 x 10(43) erg s(-1), comparable to the two most luminous LAEs known at z >= 6, "CR7" and "COLA1." These LAEs provide ideal targets to study extreme galaxies in the distant universe. 2017-09-11 Article A Magellan M2FS Spectroscopic Survey of Galaxies at 5.5 < z < 6.8: Program Overview and a Sample of the Brightest Lyα Emitters 2017, 846 (2):134 The Astrophysical Journal 1538-4357 10.3847/1538-4357/aa8561 http://hdl.handle.net/10150/625806 http://arizona.openrepository.com/arizona/handle/10150/625806 The Astrophysical Journal en http://stacks.iop.org/0004-637X/846/i=2/a=134?key=crossref.00d8ac3450d2c434173f44297437abb0 © 2017. The American Astronomical Society. All rights reserved. IOP PUBLISHING LTD |
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NDLTD |
language |
en |
sources |
NDLTD |
topic |
cosmology: observations galaxies: high-redshift galaxies: formation galaxies: evolution |
spellingShingle |
cosmology: observations galaxies: high-redshift galaxies: formation galaxies: evolution Jiang, Linhua Shen, Yue Bian, Fuyan Zheng, Zhen-Ya Wu, Jin Oyarzún, Grecco A. Blanc, Guillermo A. Fan, Xiaohui Ho, Luis C. Infante, Leopoldo Wang, Ran Wu, Xue-Bing Mateo, Mario Bailey, John I. Crane, Jeffrey D. Olszewski, Edward W. Shectman, Stephen Thompson, Ian Walker, Matthew G. A Magellan M2FS Spectroscopic Survey of Galaxies at 5.5 < z < 6.8: Program Overview and a Sample of the Brightest Lyα Emitters |
description |
We present a spectroscopic survey of high-redshift, luminous galaxies over four square degrees on the sky, aiming to build a large and homogeneous sample of Ly alpha emitters (LAEs) at z approximate to 5.7 and 6.5, and Lyman-break galaxies (LBGs) at 5.5 < z < 6.8. The fields that we choose to observe are well studied, such as by the Subaru XMM-Newton Deep Survey and COSMOS. They have deep optical imaging data in a series of broad and narrow bands, allowing for the efficient selection of galaxy candidates. Spectroscopic observations are being carried out using the multi-object spectrograph M2FS on the Magellan Clay telescope. M2FS is efficient enough to identify high-redshift galaxies, owing to its 256 optical fibers deployed over a circular field of view 30' in diameter. We have observed similar to 2.5 square degrees. When the program is completed, we expect to identify more than 400 bright LAEs at z approximate to 5.7 and 6.5, and a substantial number of LBGs at z >= 6. This unique sample will be used to study a variety of galaxy properties and to search for large protoclusters. Furthermore, the statistical properties of these galaxies will be used to probe cosmic reionization. We describe the motivation, program design, target selection, and M2FS observations. We also outline our science goals, and present a sample of the brightest LAEs at z approximate to 5.7 and 6.5. This sample contains 32 LAEs with Ly alpha luminosities higher than 10(43) erg s(-1). A few of them reach >= 3 x 10(43) erg s(-1), comparable to the two most luminous LAEs known at z >= 6, "CR7" and "COLA1." These LAEs provide ideal targets to study extreme galaxies in the distant universe. |
author2 |
Univ Arizona, Steward Observ |
author_facet |
Univ Arizona, Steward Observ Jiang, Linhua Shen, Yue Bian, Fuyan Zheng, Zhen-Ya Wu, Jin Oyarzún, Grecco A. Blanc, Guillermo A. Fan, Xiaohui Ho, Luis C. Infante, Leopoldo Wang, Ran Wu, Xue-Bing Mateo, Mario Bailey, John I. Crane, Jeffrey D. Olszewski, Edward W. Shectman, Stephen Thompson, Ian Walker, Matthew G. |
author |
Jiang, Linhua Shen, Yue Bian, Fuyan Zheng, Zhen-Ya Wu, Jin Oyarzún, Grecco A. Blanc, Guillermo A. Fan, Xiaohui Ho, Luis C. Infante, Leopoldo Wang, Ran Wu, Xue-Bing Mateo, Mario Bailey, John I. Crane, Jeffrey D. Olszewski, Edward W. Shectman, Stephen Thompson, Ian Walker, Matthew G. |
author_sort |
Jiang, Linhua |
title |
A Magellan M2FS Spectroscopic Survey of Galaxies at 5.5 < z < 6.8: Program Overview and a Sample of the Brightest Lyα Emitters |
title_short |
A Magellan M2FS Spectroscopic Survey of Galaxies at 5.5 < z < 6.8: Program Overview and a Sample of the Brightest Lyα Emitters |
title_full |
A Magellan M2FS Spectroscopic Survey of Galaxies at 5.5 < z < 6.8: Program Overview and a Sample of the Brightest Lyα Emitters |
title_fullStr |
A Magellan M2FS Spectroscopic Survey of Galaxies at 5.5 < z < 6.8: Program Overview and a Sample of the Brightest Lyα Emitters |
title_full_unstemmed |
A Magellan M2FS Spectroscopic Survey of Galaxies at 5.5 < z < 6.8: Program Overview and a Sample of the Brightest Lyα Emitters |
title_sort |
magellan m2fs spectroscopic survey of galaxies at 5.5 < z < 6.8: program overview and a sample of the brightest lyα emitters |
publisher |
IOP PUBLISHING LTD |
publishDate |
2017 |
url |
http://hdl.handle.net/10150/625806 http://arizona.openrepository.com/arizona/handle/10150/625806 |
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