  We present ASTRODEEP-GS43, a new multiwavelength photometric catalogue of the
GOODS-South field, which builds and improves upon the previously released
CANDELS catalogue. We provide photometric fluxes and corresponding
uncertainties in 43 optical and infrared bands (25 wide and 18 medium filters),
as well as photometric redshifts and physical properties of the 34930 CANDELS
$H$-detected objects, plus an additional sample of 178 $H$-dropout sources, of
which 173 are $Ks$-detected and 5 IRAC-detected. We keep the CANDELS photometry
in 7 bands (CTIO $U$, Hubble Space Telescope WFC3 and ISAAC-$K$), and measure
from scratch the fluxes in the other 36 (VIMOS, HST ACS, HAWK-I $Ks$, Spitzer
IRAC, and 23 from Subaru SuprimeCAM and Magellan-Baade Fourstar) with
state-of-the-art techniques of template-fitting. We then compute new
photometric redshifts with three different software tools, and take the median
value as best estimate. We finally evaluate new physical parameters from SED
fitting, comparing them to previously published ones. Comparing to a sample of
3931 high quality spectroscopic redshifts, for the new photo-$z$'s we obtain a
normalized median absolute deviation (NMAD) of 0.015 with 3.01$\%$ of outliers
(0.011, 0.22$\%$ on the bright end at $I814$<22.5), similarly to the best
available published samples of photometric redshifts, such as the COSMOS
UltraVISTA catalogue. The ASTRODEEP-GS43 results are in qualitative agreement
with previously published catalogues of the GOODS-South field, improving on
them particularly in terms of SED sampling and photometric redshift estimates.
The catalogue is available for download from the Astrodeep website.
