First results of the Calar Alto Deep Imaging Survey

被引：0

作者：

Thommes, E ^{[1
]}

Beckwith, S ^{[1
]}

Fockenbrock, R ^{[1
]}

Fried, J ^{[1
]}

Hippelein, H ^{[1
]}

Hopp, U ^{[1
]}

Leinert, C ^{[1
]}

Meisenheimer, K ^{[1
]}

Phleps, S ^{[1
]}

Röser, HJ ^{[1
]}

Thompson, D ^{[1
]}

Wolf, C ^{[1
]}

机构：

[1] Max Planck Inst Astron, D-69117 Heidelberg, Germany

来源：

LARGE SCALE STRUCTURE: TRACKS AND TRACES | 1998年

关键词：

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Calar Alto Deep Imaging Survey (CADIS) employs a combination of deep exposures in three broad bands (B,R,K) and up to 13 medium bands (R = lambda/Delta lambda = 15...50) with spectroscopic scans through an imaging Fabry-Perot-Interferometer (R similar to 450) The survey covers 10 fields of greater than or equal to 100 square', i.e; a total area of > 0.3 square degrees. Although primarily designed to detect faint emission line galaxies at various intermediate (z=0.2...1.4) and very high (z=4.7,5.7,6.5) redshifts, its multi-color strategy will also allow the detection and classification of hundreds of early-type galaxies, faint QSOs, and extremely faint stars in our Galaxy. We outline the survey concept and its principal goals. We already found very promising candidates for Ly-a! emitting galaxies at redshift 5.7. Further on, with follow-up spectroscopy at Calar Alto, we could prove that our classification of objects as stars, galaxies and QSOs and the estimate of their redshifts with the multi-color data works very well. Among the first results is the detection of an exceptional high surface density of quasars with z > 2.2 and R less than or equal to 22.0.

引用

页码：9 / 12

页数：4

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