The Subaru Deep Field: The optical imaging data
The Subaru Deep Field: The optical imaging data
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DOI：
10.1093/pasj/56.6.1011
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发表时间：
2004-12-25
影响因子：
2.3
通讯作者：
Yoshida, M
中科院分区：
文献类型：
--
作者：
Kashikawa, N;Shimasaku, K;Yoshida, M
斯巴鲁深空（SDF）项目是斯巴鲁天文台的一个计划，在一个34' x 27'的空白区域进行深星系调查。该计划包括非常深的多波段光学成像，近红外成像领域的较小部分，和后续的光谱学。该项目的主要科学目标是构建z接近或等于4-5的莱曼破裂星系和z接近或等于5.7和6.6的莱曼α发射体的大样本，并对这些非常高红移的星系群进行详细研究。在本文中。我们描述了光学成像观测和数据处理，在七个带通中呈现镶嵌图像和对象目录。光学成像是通过五个宽带滤波器。B，V. R i“。z'.和两个窄带滤波器。NB 816（λ（c）= 8150埃）和NB 921（λ（c）= 9196埃），每个谱带的积分几乎为10小时。在2”孔径的3 σ处测得的极限量值为B = 28.45，V =227.74，R = 27.80，i' = 27.43。z ′ = 26.62。在AB系统中，NB 816 = 26.63和NB 921 = 26.54。为七个波段中的每一个波段构建的天体目录包含超过101个天体。星系数计数校正检测不完整性和恒星计数的贡献被认为是与文献中以前的结果一致。所有乐队的马赛克图像和目录已于2004年10月1日在自卫队项目网站上向公众开放。
The Subaru Deep Field (SDF) project is a program of Subaru Observatory to cam, out a deep galaxy survey over a blank field as large as 34' x 27'. The program consists of very deep multi-band optical imaging, near-infrared imaging for smaller portions of the field, and follow-up optical spectroscopy. The major scientific goals of the project are to construct large samples of Lyman-break galaxies at z similar or equal to 4-5 and Lyman alpha emitters at z similar or equal to 5.7 and 6.6, and to make detailed studies of these very high-redshift galaxy populations. In this paper. we describe, the-optical imaging observations and data reduction, presenting mosaicked images and object catalogs in seven bandpasses. The optical imaging was made through five broad-band filters. B, V. R i'. z'. and two narrow-band filters. NB816 (lambda(c) = 8150 Angstrom) and NB921 (lambda(c) = 9196 Angstrom) with almost 10 hour integrations for each band. The limiting magnitudes measured at 3sigma on a 2" aperture are B = 28.45, V =227.74, R = 27.80, i' = 27.43. z' = 26.62. NB816 = 26.63, and NB921 = 26.54 in the AB system. The object catalog constructed for each of the seven bands contains more than 101 objects. The galaxy number counts corrected for detection incompleteness and star-count contributions are found to be consistent with previous results in the literature. Mosaicked images and catalogs of all the bands have been made open to the public on 2004 October 1 oil the SDF project website.