A Magellan M2FS Spectroscopic Survey of Galaxies at 5.5?
文献类型：期刊论文
| 作者 | Jiang,Linhua6; Shen,Yue4,5; Bian,Fuyan3; Zheng,Zhen-Ya1,2,15; Wu,Jin6,14; Oyarzún,Grecco A.12,13; Blanc,Guillermo A.11,13; Fan,Xiaohui9; Ho,Luis C.6,14; Infante,Leopoldo1 |
| 刊名 | The Astrophysical Journal
 |
| 出版日期 | 2017-09-11 |
| 卷号 | 846期号:2 |
| ISSN号 | 0004-637X |
| 关键词 | cosmology: observations galaxies: high-redshift galaxies: formation galaxies: evolution |
| DOI | 10.3847/1538-4357/aa8561 |
| 英文摘要 | 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 Lyα emitters (LAEs) at z ≈ 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 ～2.5 square degrees. When the program is completed, we expect to identify more than 400 bright LAEs at z ≈ 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 ≈ 5.7 and 6.5. This sample contains 32 LAEs with Lyα luminosities higher than 1043 erg s?1. A few of them reach ≥3?×?1043 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. |
| 语种 | 英语 |
| 出版者 | The American Astronomical Society |
| WOS记录号 | IOP:0004-637X-846-2-AA8561 |
| 源URL | [http://119.78.226.72/handle/331011/32103]  |
| 专题 | 中国科学院上海天文台 |
| 作者单位 | 1.Institute of Astrophysics and Center for Astroengineering, Pontificia Universidad Catolica de Chile, Santiago 7820436, Chile 2.CAS Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Shanghai 200030, China 3.Research School of Astronomy and Astrophysics, Australian National University, Weston Creek, ACT 2611, Australia 4.National Center for Supercomputing Applications, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA 5.Department of Astronomy, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA 6.Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, China ; jiangKIAA@pku.edu.cn 7.McWilliams Center for Cosmology, Department of Physics, Carnegie Mellon University, Pittsburgh, PA 15213, USA 8.Leiden Observatory, Leiden University, P.O. Box 9513, 2300RA Leiden, The Netherlands 9.Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721, USA 10.Department of Astronomy, University of Michigan, Ann Arbor, MI 48109, USA |
| 推荐引用方式 GB/T 7714 | Jiang,Linhua,Shen,Yue,Bian,Fuyan,et al. A Magellan M2FS Spectroscopic Survey of Galaxies at 5.5? |
| APA | Jiang,Linhua.,Shen,Yue.,Bian,Fuyan.,Zheng,Zhen-Ya.,Wu,Jin.,...&Walker,Matthew G..(2017).A Magellan M2FS Spectroscopic Survey of Galaxies at 5.5?The Astrophysical Journal,846(2). |
| MLA | Jiang,Linhua,et al."A Magellan M2FS Spectroscopic Survey of Galaxies at 5.5?The Astrophysical Journal 846.2(2017). |
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来源：上海天文台
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