Object Density Distribution
Object density distribution, generated by applying a top-hat window of ... arcmin in diameter
Completeness of the catalog estimated from the comparison between real and simulated data.
The simulations were created by fading the original image by 0.5 magnitudes but keeping the same background noise
Average of SExtractor magnitude error
Fraction of false positives as a function of magnitude for different values of S/N
Spatial distribution of spurious objects estimated from false positives
Smooth object density distribution,generated by applying a top-hat window of ... arcmin in diameter
Projected Distribution of science grade catalog. In the figure are shown:
1) galaxies (blue); stars (magenta); trimmed objects (red crosses); masked objects (black crosses); other discarded objects red squares).
Also shown are the automatic masks placed by the system around bright stars, as defined in the configuration file (red losangles)
STAR COUNTS COMPARED WITH GALACTIC MODEL
Solid dots: EIS data
Cyan line: Galactic model, not corrected for catalog completeness
Blue line: Galactic model, corrected for catalog completeness
Red dotted line: magnitude limit for the star/galaxy classification
Magenta dotted line: 2 arcsec - 5 sigma limiting magnitude
Number of stars in the catalog: 5
Magnitudes are Vega in the instrument natural system (SOFI)
Model data averaged over 2 simulations.
Errors on model calculated as the standard deviation of the values in the different simulations.
Errors on the real counts are: 1+sqrt(N + 0.75)
Solid Squares: EIS data
Solid Triangles, dotted line : Vandame et al. (2001) preprint
Open Triangles , short dash : Martini, P. 2000 astro-ph/0008328
Crosses , long dashed : Metcalfe et al. MNRAS in prep.
blue dashed line:
5 S/N MAG_AUTO magnitude limit=18.93
red line:
Least Squares Method: fitted log(Counts)=a*Magnitude+b
a = 0.42; b = -3.64.
Magnitude System: Vega
Magnitude Type: MAG_AUTO