Figure 1. A comparison in area and depth between current major surveys and the FSVS. Adapted from the National Optical Astronomy Observatory (NOAO) Deep Wide-Field Survey Web pages (see www. noao.edu/noao/noaodeep/): SDSS, Sloan Digital Sky Survey (York et al. 2000); EIS (deep), ESO Imaging Survey (Deep) (Nonino et al. 1999); Deeprange, (Postman et al. 1998); INT-WAS, INT Wide Angle Survey (McM...

The 2.5m Isaac Newton Telescope(INT) is currently being used to carry out a major multi-colour, multi-epoch, CCD based wide field survey over an area of ∼100deg 2. The survey parameters have been chosen to maximise scientific return over a wide range of scientific areas and to complement other surveys being carried out elsewhere. Unique aspects of the survey is that it concentrates on regions o...

We present X-ray spectral analyses of the three z > 4 Active Galactic Nuclei (AGNs) thus far spectroscopically identified in the Chandra Deep Field-North Survey, at redshifts of 5.186, 4.424, and 4.137. These analyses are made possible by the extremely deep exposure (≈ 2 Ms) and the low Chandra background. The rest-frame ≈ 2.5–40 keV spectra are the first for optically faint (two of the three s...

Near-infrared photometry (JHKL M) was obtained for 78 semiregular variables (SRVs) in field #3 of the Palomar-Groningen survey (PG3, l = 0 • , b = −10 •). Together with a sample of Miras in this field a comparison is made with a sample of field SRVs and Miras. The PG3 SRVs form a sequence (period – luminosity & period – colour) with the PG3 Miras, in which the SRVs are the short period extensio...

Vector field visualization research has evolved very rapidly over the last two decades. There is growing consensus amongst the research community that the challenge of two-dimensional vector field visualization is virtually solved as a result of the tremendous amount of effort put into this problem. Two-dimensional flow, both steady and unsteady can be visualized in real-time, with complete cov...