A wide field survey at the Northern Ecliptic Pole
نویسندگان
چکیده
منابع مشابه
A wide field survey at the Northern Ecliptic Pole
We present a medium deep survey carried out in the three filters Bj , R and K. The survey covers homogeneously the central square degree around the Northern Ecliptic Pole (NEP) down to a completeness limit of 24.25, 23.0 and 17.5mag in Bj , R and K, respectively. While the near infrared data have been presented in the first paper of this series, here we concentrate on the optical data and the r...
متن کاملA wide field survey at the Northern Ecliptic Pole I. Number counts and angular correlation functions in K
We present the results from a multi colour survey performed at the Northern Ecliptic Pole (NEP). The survey is designed to identify the counterparts of faint sources from the ROSAT All Sky Survey and the IRAS survey and to study their optical/near-infrared properties. We observed the central square degree around the NEP in the optical bands BJ and R and in the near-infrared band K. A shallower ...
متن کاملAstronomy and Astrophysics a Wide Field Survey at the Northern Ecliptic Pole I: Number Counts and Angular Correlation Functions in K
We present the results from a multi colour survey performed at the Northern Ecliptic Pole (NEP). The survey is designed to identify the counterparts of faint sources from the ROSAT All Sky Survey and the IRAS survey and to study their optical/near-infrared properties. We observed the central square degree around the NEP in the optical bands B J and R and in the near-infrared band K. A shallower...
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We present a photometric catalog of infrared (IR) sources based on the North Ecliptic Pole Wide field (NEP-Wide) survey of AKARI, which is an infrared space telescope launched by Japan. The NEP-Wide survey covered 5.4 deg2 area, a nearly circular shape centered on the NEP, using nine photometric filter-bands from 2−25 μm of the Infrared Camera (IRC). Extensive efforts were made to reduce possib...
متن کاملCluster Evolution in the ROSAT North Ecliptic Pole Survey
The deepest region of the ROSAT All−Sky Survey, at the North Ecliptic Pole, has been studied to produce a complete and unbiased X-ray selected sample of clusters of galaxies. This sample is used to investigate the nature of cluster evolution and explore potential implications for large-scale structure models. The survey is 99.6% optically identified. Spectroscopic redshifts have been measured f...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2001
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:20010218