ScienceGrade Summary

Catalog Products >> Product Log >> Summary

Product Identification

Real User	Lisbeth Fogh Olsen
Product Creation Date	2004-12-02
Product Creation Time	13:11:30.719
User	eisdata
Session	72372
Process	Local
Product Type	SINGLE PASSBAND
Extraction Method	SExtractor
Extraction Version	SExtractor 2.3.2
Survey	DPS
Telescope	MPI-2.2
Instrument	WFI
Region	DEEP3
Field	DEEP3d
Passband	I
ESO Filter#	#879
Total Exposure Time (seconds)	23193

Product Information

Instrument	WFI
Passband	I
ESO Filter#	#879
Magntude Type used for Reporting	MAG_AUTO
Right Ascension (hh:mm:ss.s)	11:17:42.4
Declinaton (dd:mm:ss.s)	-21:41:09.2
Right Ascension (decimal degrees)	169.4265
Declinaton (decimal degrees)	-21.6859
Galactic longitude (degrees)	275.6867
Galactic latitude (degrees)	36.1781
Total Exposure Time (seconds)	23193
Image File Name	EIS.2004-11-16T04:23:45.103.fits
Catalog File Name	EIS.2004-12-02T13:56:09.173.fits

Primary Catalog Information

Product Type	SINGLE PASSBAND
Total Area (square degrees)	0.3675
Trimmed Area (square degrees)	0.0561
Masked Area (square degrees)	0.0209
Number of Extracted Objects	73254
Number of Saturated Objects	152
Number of Objects with SExtractor Flag > 0	17894
Number of Objects inside trimmed area	8528
Number of Objects inside masked area	6200
80% Completeness Limit (Vega)	24.35
50% Completeness Limit (Vega)	24.85
Average Magnitude for Objects with MAG_AUTO error = 0.2 (Vega)	24.56

Science Catalog Information

Magnitude Type used for Filtering	MAG_AUTO
Signal-to-Noise limit	5.0
Classification Magnitude Limit	21.5
ClassStar Limit for selecting stars	0.95
Limiting Magnitude for Masking	0
Mask Size Factor (Half Diagonal=factor*A_WORLD)	20
Maximum Half Diagonal for Masks (arcsecs)	126
Total Area (square degrees)	0.3675
Trimmed Area (square degrees)	0.0561
Masked Area (square degrees)	0.0209
Effective Area (square degrees)	0.2926
Number of Extracted Objects	33650
Number of Galaxies	17266
Number of Stars	1513
Number of Saturated Objects	151
Number of Objects with SExtractor Flag > 0	12063
Number of Objects in trimmed area	2854
Number of Objects in masked area	3040
80% Completeness Limit (Vega)	22.95
50% Completeness Limit (Vega)	23.63
Average Magnitude for Objects with MAG_AUTO error = 0.2 (Vega)	24.56

Catalog Contents

Number of Columns in OBJECTS table	69
Number of Objects	33650
Number of Columns in FIELDS table	109
Number of Entries in FIELDS table	1
Number of Columns in MASKS table	1
Number of Masks	152
Number of Automatic Masks	152
Number of Masks generated by hand	0
Number of Columns in FILTER table	4
Number of Entries in FILTER table	1802

Instrument Properties

Instrument	WFI
Pixel Scale (arcsec)	0.238
Field-of-View (square arcmin)	0.3117
Gain (electrons/ADU)	-
Non-linearity (ADU)	N/A
Saturation (ADU)	50000.0
Effective Gain (electrons/)	47597.1
Effective Non-linearity (ADU)	N/A
Effective Saturation (ADU)	193.0

Filter Properties

Passband	I
ESO Filter #	#879
Mean Wavelength (Angstrom)	8269.0
FWHM (Angstrom)	1554.0
AB correction	0.436
AB correction applied to magnitudes in the catalog	0.436
Average E(B-V)	0.039
Standard Deviation of E(B-V)	0.00011
Relative Extinction ( A/E(B-V) )	1.841
Computed Extinction Correction	0.071
Computed Standard Deviation of Extinction Correction	0.00021
Extinction Correction applied to magnitudes in the catalog	0.071

Telescope Response and Filter Transmission Curves

Telescope response function (green) and filter transmission (red) curves

Primary Attributes

Catalog Products >> Product Log >> Primary Catalog >> Attributes

Product Identification

Real User	Lisbeth Fogh Olsen
Product Creation Date	2004-12-02
Product Creation Time	13:11:30.719
User	eisdata
Session	72372
Process	Local
Product Type	SINGLE PASSBAND
Extraction Method	SExtractor
Extraction Version	SExtractor 2.3.2
Survey	DPS
Telescope	MPI-2.2
Instrument	WFI
Region	DEEP3
Field	DEEP3d
Passband	I
ESO Filter#	#879
Total Exposure Time (seconds)	23193

Product Information

RA (center of catalog)	169.4265
Dec (center of catalog)	-21.6859
Maximum RA of catalog (degrees)	169.7350
Minimum RA of catalog (degrees)	169.1190
RA interval (arcmin)	0.62
Maximum Dec of catalog (degrees)	-21.4159
Minimum Dec of catalog (degrees)	-21.9599
Dec interval (arcmin)	0.54
Total area of catalog (square degrees)	0.3675

Object Statistics

Total Number of Objects	73254
Number of Objects inside Trimmed Area	8528
Number of Objects inside Masked Area	6200
Number of Objects with SExtractor Flag > 0	17894

Star/Galaxy Classification

Magnitude Type for Classification	MAG_AUTO
Star/Galaxy Classification Method adopted	Simple Method
Magnitude Limit Applied for "Simple" Star/Galaxy Classification	21.5
CLASS_STAR Limit Applied for "Simple" Star/Galaxy Classification	0.95

Galaxy/Star Classification

Adopted star/galaxy separation method using stellar index.

Limiting Magnitude (VEGA)

Aperture Magnitudes

Aperture (arcsec)	(S/N = 1)	(S/N = 2)	(S/N = 3)	(S/N = 5)	(S/N = 10)

1.0	26.77	25.41	25.45	25.02	24.26
1.5	26.28	25.33	25.01	24.56	23.82
2.0	25.91	25.04	24.74	24.23	23.52
2.5	25.51	24.92	24.49	24.00	23.27
3.0	25.54	24.77	24.29	23.83	23.05
3.5	25.31	24.52	24.13	23.63	22.89
4.0	25.12	24.44	23.99	23.48	22.73
4.5	25.05	24.26	23.85	23.37	22.62
5.0	24.93	24.15	23.78	23.25	22.50
10.0	24.13	23.46	22.98	22.44	21.78

Other Magnitudes

Magnitude Type	(S/N = 1)	(S/N = 2)	(S/N = 3)	(S/N = 5)	(S/N = 10)

MAG_AUTO	24.87	25.10	24.63	23.71	22.72
MAG_ISO	27.58	26.33	25.83	24.81	23.55
MAG_ISOCOR	-	-	25.56	24.54	23.29

Simulation Results

Number of Simulated Images	3
Fading Factor	3.0,3.5,4.0
Limiting Magnitude at 80% completeness (Vega)	24.35
Limiting Magnitude at 50% completeness (Vega)	24.85

Catalog Completeness

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

Estimate of Magnitude errors and bias

Average of SExtractor magnitude error

Results from using the Negative Image

Statistics of Spurious Objects

Fraction of false positives as a  function of magnitude for different values of S/N

Spatial Distribution of Spurious Objects

Spatial distribution of spurious objects estimated from false positives

ScienceGrade Attributes

Catalog Products >> Product Log >> Science Grade Catalog >> Attributes

Product Identification

Real User	Lisbeth Fogh Olsen
Product Creation Date	2004-12-02
Product Creation Time	13:11:30.719
User	eisdata
Session	72372
Process	Local
Product Type	SINGLE PASSBAND
Extraction Method	SExtractor
Extraction Version	SExtractor 2.3.2
Survey	DPS
Telescope	MPI-2.2
Instrument	WFI
Region	DEEP3
Field	DEEP3d
Passband	I
ESO Filter#	#879
Total Exposure Time (seconds)	23193

Filtering Settings

Magnitude Type for Catalog Filtering	MAG_AUTO
Signal to Noise Filtering Threshold	5.0
Magnitude Upper Limit	99.9
Magnitude Lower Limit	0.0
Star/Galaxy Classification Method adopted	Simple Method
Magnitude Limit Applied for "Simple" Star/Galaxy Classification	21.5
CLASS_STAR Limit Applied for "Simple" Star/Galaxy Classification	0.95

Product Information

Total Area (square degrees)	0.3675
Trimmed Area (square degrees)	0.0561
Masked Area (square degrees)	0.0209
Effective Area (square degrees)	0.2926

Object Statistics

Number of Objects inside Trimmed Area	2854
Number of Objects inside Masked Area	3040
Number of Objects with SExtractor Flag > 0)	12063
Final Number of Galaxies	17266
Number Density of Galaxies (galaxy/square arcmin)	16.389
Final Number of Stars	1513
Number Density of Stars (stars/square arcmin)	1.436

Smooth Density Plot

Smooth object density distribution,generated by applying a top-hat window of ... arcmin in diameter

Projected Distribution

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)

Limiting Magnitudes

Vega Magnitude System

5-sigma 2 arcsec (Vega)	24.56
80% completeness (Vega)	24.35
Extinction corrected 5-sigma 2 arcsec (Vega)	24.49
Extinction corrected 80% completeness (Vega)	24.28

AB Magnitude System

5-sigma 2 arcsec (AB)	25.00
80% completeness (AB)	24.79
Extinction corrected 5-sigma 2 arcsec (AB)	24.93
Extinction corrected 80% completeness (AB)	24.72

Science Grade Catalog Completeness

80% completeness at m = 22.95

50% completeness at m = 23.63

red: completeness function

blue: 50 and 80 percent completeness levels linearly interpolated between bins

Magnitude System: Vega

Magnitude Type: MAG\_AUTO

Verification

Catalog Products >> Product Log >> Primary Catalog >> Verifcation

Product Identification

Real User	Lisbeth Fogh Olsen
Product Creation Date	2004-12-02
Product Creation Time	13:11:30.719
User	eisdata
Session	72372
Process	Local
Product Type	SINGLE PASSBAND
Extraction Method	SExtractor
Extraction Version	SExtractor 2.3.2
Survey	DPS
Telescope	MPI-2.2
Instrument	WFI
Region	DEEP3
Field	DEEP3d
Passband	I
ESO Filter#	#879
Total Exposure Time (seconds)	23193

Number Counts

Star Counts with comparison with Galactic model

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: 1513

Magnitudes are Vega in the instrument natural system (WFI)

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)

Galaxy Counts

Solid Squares: EIS data

Solid Triangles, dotted line     : Metcalfe et al. 2000 MNRAS in press

Open Triangles , short dash      : Yasuda et al (2001) astro-ph/0105545

Crosses        , long dashed     : Arnouts et al. (2001) astro-ph/0103071

blue dashed line:

5 S/N MAG_AUTO magnitude limit=23.71

red line:

Least Squares Method: fitted log(Counts)=a*Magnitude+b

a =  0.35; b = -3.75.

Magnitude System: Vega

Magnitude Type:   MAG_AUTO