Astronomy and Astrophysics – Astrophysics
Scientific paper
1998-10-08
Astronomy and Astrophysics
Astrophysics
13 pages, 9 figures, 3 tables (uses aa.cls). Accepted for publication in Astronomy & Astrophysics
Scientific paper
We present a deep BVrI multicolor catalog of galaxies in a 5.62 sq.arcmin field 80 arcsec south of the high redshift (z=4.7) quasar BR 1202-0725, derived from observations with the direct CCD camera SUSI at the ESO NTT. The formal 5$\sigma$ magnitude limits (in 2 x FWHM apertures) are 26.9, 26.5, 25.9 and 25.3 in B, V, r and I respectively. Counts, colors for the star and galaxy samples are discussed and a comparison with a deep HST image in the I band is presented. The percentage of merged or blended galaxies in the SUSI data to this magnitude limit is estimated to be not higher than 1%. At the same galactic latitude of the HDF but pointing toward the galactic center, the star density in this field is found to be ~3 times higher, with ~20% of the objects with V-I > 3.0. Reliable colors have been measured for galaxies selected down to r = 26. The choice of the optical filters has been optimized to define a robust multicolor selection of galaxies at 3.8 <= z <= 4.4. Within this interval the surface density of galaxy candidates with r < 26 in this field is 2.7 +/- 0.4 arcmin^-2 corresponding to a comoving density of Star Formation Rate at 3.8 <= z <= 4.4 of 10^{-2.00} - 10^{-1.82} h^3 Mo /yr/ Mpc^3.
Arnouts Stephane
Cristiani Stefano
D'Odorico Sandro
Fontana Adriano
Giallongo Emanuele
No associations
LandOfFree
The NTT Susi Deep Field does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The NTT Susi Deep Field, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The NTT Susi Deep Field will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-508595