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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

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    Jiang_2017_ApJ_846_134.pdf
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    FInal Published Version
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    Author
    Jiang, Linhua cc
    Shen, Yue cc
    Bian, Fuyan cc
    Zheng, Zhen-Ya cc
    Wu, Jin cc
    Oyarzún, Grecco A. cc
    Blanc, Guillermo A.
    Fan, Xiaohui cc
    Ho, Luis C. cc
    Infante, Leopoldo cc
    Wang, Ran
    Wu, Xue-Bing cc
    Mateo, Mario
    Bailey, John I.
    Crane, J. D. cc
    Olszewski, Edward W.
    Shectman, Stephen
    Thompson, Ian
    Walker, Matthew G. cc
    Show allShow less
    Affiliation
    Univ Arizona, Steward Observ
    Issue Date
    2017-09-11
    Keywords
    cosmology: observations
    galaxies: high-redshift
    galaxies: formation
    galaxies: evolution
    
    Metadata
    Show full item record
    Publisher
    IOP PUBLISHING LTD
    Citation
    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
    Journal
    The Astrophysical Journal
    Rights
    © 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
    1538-4357
    DOI
    10.3847/1538-4357/aa8561
    Version
    Final published version
    Sponsors
    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 Finance
    Additional Links
    http://stacks.iop.org/0004-637X/846/i=2/a=134?key=crossref.00d8ac3450d2c434173f44297437abb0
    ae974a485f413a2113503eed53cd6c53
    10.3847/1538-4357/aa8561
    Scopus Count
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    UA Faculty Publications

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