ZEN2: a narrow J-band search for z∼ 9 Lyα emitting galaxies directed towards three lensing clusters
ZEN2: a narrow J-band search for z∼ 9 Lyα emitting galaxies directed towards three lensing clusters
复制标题
ZEN2：针对 z〜 9 Lyα 发射星系的窄 J 波段搜索，指向三个透镜簇
DOI：
10.1111/j.1365-2966.2007.12404.x
复制
发表时间：
2007
影响因子：
4.8
通讯作者：
D. Minniti
中科院分区：
文献类型：
--
作者：
J. Willis;F. Courbin;J. Kneib;D. Minniti
我们给出了一项持续测量的结果，以探测红移类似于9的Ly Alpha发射星系：z等于9‘(Zen)。我们已经在窄带滤光片NB119上获得了针对三个大质量透镜星系团的深VLT红外光谱仪和阵列相机观测：Abell星系团1689,1835和114。前景星系团提供了遥远宇宙的放大图像，并允许对是否存在非常高的红移星系进行灵敏的测试。我们搜索类似于9个Lyα发射星系的z，相对于伴随的J波段观测，显示出显著的窄带过剩，这些观测在哈勃空间望远镜(HST)/高级测量相机(ACS)的每个场的光学图像中仍然没有被探测到。在窄带图像未透镜的90%点源通量极限F-Nb=3.7x10(-18)erg S(-1)cm(-2)以上没有探测到符合这一判据的源。到目前为止，禅宗调查的总覆盖范围已经在z处采样了类似于9的体积，大约1700 Mpc(3)到Lya发射光度10(43)erg S(-1)。我们的结论是，根据观测到的两个星系在z7的属性，我们考虑了探测类似于9Lyα发射星系的z的前景。
We present the results of a continuing survey to detect Ly alpha emitting galaxies at redshifts z similar to 9: the z equals nine' (ZEN) survey. We have obtained deep VLT Infrared Spectrometer and Array Camera observations in the narrow J-band filter NB119 directed towards three massive lensing clusters: Abell clusters 1689, 1835 and 114. The foreground clusters provide a magnified view of the distant Universe and permit a sensitive test for the presence of very high redshift galaxies. We search for z similar to 9 Ly alpha emitting galaxies displaying a significant narrow-band excess relative to accompanying J-band observations that remain undetected in Hubble Space Telescope (HST)/Advanced Camera for Surveys (ACS) optical images of each field. No sources consistent with this criterion are detected above the unlensed 90 per cent point-source flux limit of the narrow-band image, F-NB = 3.7 x 10(-18) erg s(-1) cm(-2). To date, the total coverage of the ZEN survey has sampled a volume at z similar to 9 of approximately 1700 comoving Mpc(3) to a Lya emission luminosity of 10(43) erg s(-1). We conclude by considering the prospects for detecting z similar to 9 Ly alpha emitting galaxies in light of both observed galaxy properties at z 7.
影响因子：
4.9
作者：
Hu, EM;Cowie, LL;Motohara, K
通讯作者：
Motohara, K
影响因子：
64.8
作者：
Iye, Masanori;Ota, Kazuaki;Shimasaku, Kazuhiro
通讯作者：
Shimasaku, Kazuhiro
影响因子：
4.9
作者：
Kashikawa, Nobunari;Shimasaku, Kazuhiro;Umemura, Masayuki
通讯作者：
Umemura, Masayuki