A Magellan M2FS Spectroscopic Survey of Galaxies at 5.5 < z < 6.8: Program Overview and a Sample of the Brightest Lyα Emitters
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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, J. D.

Olszewski, Edward W.
Shectman, Stephen
Thompson, Ian
Walker, Matthew G.

Affiliation
Univ Arizona, Steward ObservIssue Date
2017-09-11
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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 JournalJournal
The Astrophysical JournalRights
© 2017. The American Astronomical Society. All rights reserved.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
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.ISSN
1538-4357Version
Final published versionSponsors
National Key R&D Program of China [2016YFA0400703, 2016YFA0400702]; National Science Foundation of China [11533001]; Alfred P. Sloan Research Fellowship; Chinese Academy of Sciences (CAS) through a China-Chile Joint Research Fund (CCJRF) [1503]; National Astronomical Observatories of China [XDB09000000]; Special Fund for Astronomy from the Ministry of FinanceAdditional Links
http://stacks.iop.org/0004-637X/846/i=2/a=134?key=crossref.00d8ac3450d2c434173f44297437abb0ae974a485f413a2113503eed53cd6c53
10.3847/1538-4357/aa8561