A Magellan M2FS Spectroscopic Survey of Galaxies at 5.5 < z < 6.8: Program Overview and a Sample of the Brightest Ly alpha Emitters
文献类型：期刊论文
| 作者 | Jiang, Linhua6; Shen, Yue7,8; Bian, Fuyan9; Zheng, Zhen-Ya5,10,11,12; Wu, Jin6,13; Oyarzun, Grecco A.1,2; Blanc, Guillermo A.1,3; Fan, Xiaohui4; Ho, Luis C.6,13; Infante, Leopoldo11,12 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2017-09-10 |
| 卷号 | 846期号:2 |
| 关键词 | Cosmology: Observations Galaxies: High-redshift Galaxies: Formation Galaxies: Evolution |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/aa8561 |
| 英文摘要 | 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. |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000410386100010 |
| 出版者 | IOP PUBLISHING LTD |
| 源URL | [http://119.78.226.72/handle/331011/32441]  |
| 专题 | 中国科学院上海天文台 |
| 通讯作者 | Jiang, Linhua |
| 作者单位 | 1.Univ Chile, Dept Astron, Camino Observ 1515, Santiago 7591245, Chile 2.Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA 3.Observ Carnegie Inst Sci, 813 Santa Barbara St, Pasadena, CA 91101 USA 4.Univ Arizona, Steward Observ, 933 North Cherry Ave, Tucson, AZ 85721 USA 5.Chinese Acad Sci, South Amer Ctr Astron, Santiago 7591245, Chile 6.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China 7.Univ Illinois, Dept Astron, Urbana, IL 61801 USA 8.Univ Illinois, Natl Ctr Supercomp Applicat, Urbana, IL 61801 USA 9.Australian Natl Univ, Res Sch Astron & Astrophys, Weston, ACT 2611, Australia 10.Shanghai Astron Observ, CAS Key Lab Res Galaxies & Cosmol, Shanghai 200030, Peoples R China |
| 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 < z < 6.8: Program Overview and a Sample of the Brightest Ly alpha Emitters[J]. ASTROPHYSICAL JOURNAL,2017,846(2). |
| 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 < z < 6.8: Program Overview and a Sample of the Brightest Ly alpha Emitters.ASTROPHYSICAL JOURNAL,846(2). |
| MLA | Jiang, Linhua,et al."A Magellan M2FS Spectroscopic Survey of Galaxies at 5.5 < z < 6.8: Program Overview and a Sample of the Brightest Ly alpha Emitters".ASTROPHYSICAL JOURNAL 846.2(2017). |
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来源：上海天文台
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