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  • 标题:The MUSE Hubble Ultra Deep Field Survey - II. Spectroscopic redshifts and comparisons to color selections of high-redshift galaxies
  • 其他标题:II. Spectroscopic redshifts and comparisons to color selections of high-redshift galaxies ⋆⋆⋆
  • 本地全文:下载
  • 作者:H. Inami ; R. Bacon ; J. Brinchmann
  • 期刊名称:Astronomy & Astrophysics
  • 印刷版ISSN:0004-6361
  • 电子版ISSN:1432-0746
  • 出版年度:2017
  • 卷号:608
  • 页码:1-26
  • DOI:10.1051/0004-6361/201731195
  • 语种:English
  • 出版社:EDP Sciences
  • 摘要:We have conducted a two-layered spectroscopic survey (1′ × 1′ ultra deep and 3′ × 3′ deep regions) in the Hubble Ultra Deep Field (HUDF) with the Multi Unit Spectroscopic Explorer (MUSE). The combination of a large field of view, high sensitivity, and wide wavelength coverage provides an order of magnitude improvement in spectroscopically confirmed redshifts in the HUDF; i.e., 1206 secure spectroscopic redshifts for Hubble Space Telescope (HST) continuum selected objects, which corresponds to 15% of the total (7904). The redshift distribution extends well beyond z> 3 and to HST/F775W magnitudes as faint as ≈ 30 mag (AB, 1σ). In addition, 132 secure redshifts were obtained for sources with no HST counterparts that were discovered in the MUSE data cubes by a blind search for emission-line features. In total, we present 1338 high quality redshifts, which is a factor of eight increase compared with the previously known spectroscopic redshifts in the same field. We assessed redshifts mainly with the spectral features [O ii] at z< 1.5 (473 objects) and Lyα at 2.9
  • 关键词:engalaxies: high-redshiftgalaxies: formationgalaxies: evolutioncatalogssurveys
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