SIMPLE Photometry Catalog February 2010 v1.1.1 Definitions

SIMPLE Overview

The Spitzer IRAC/MUSYC Public Legacy Survey in the Extended Chandra Deep Field South (SIMPLE) consists of deep IRAC observations (several hours per pointing) covering the 0.5 x 0.5 deg area surrounding the GOODS CDF-South. This low-background region of the sky has by far the best supporting data of any cosmological survey field of comparable area, with deep observations from the X-rays to the thermal infrared.

The SIMPLE data delivery documentation can be found here. Note all flux units in the catalog are converted to the same zeropoint on the AB system: ABMAG = 25. - 2.5*log10(fluxunits)

SIMPLE Photometry Catalog February 2010 v1.1.1 Column Descriptions

Gator serves the SIMPLE Photometry Catalog February 2010 v1.1.1 (37 columns, 61233 data rows). The column descriptions can be found below.

Name Intype Units Description
x_pos real x position in image in SIMPLE V1.1 mosaic
y_pos real y position in image in SIMPLE V1.1 mosaic
id int Source number
ra real degrees J2000.0 right ascension of IRAC 3.6mu+4.5mu detected source
dec real degrees J2000.0 declination of IRAC 3.6mu+4.5mu detected source
f36_ap1 real 0.363 microJy Flux density in IRAC band 1 in radius=1.5 arcsec
fe36_ap1 real 0.363 microJy Flux uncertainty in IRAC band 1 in radius=1.5 arcsec
f36_ap2 real 0.363 microJy Flux density in IRAC band 1 in radius=2.0 arcsec
fe36_ap2 real 0.363 microJy Flux uncertainty in IRAC band 1 in radius=2.0 arcsec
f36_ap3 real 0.363 microJy Flux density in IRAC band 1 in radius=3.0 arcsec
fe36_ap3 real 0.363 microJy Flux uncertainty in IRAC band 1 in radius=3.0 arcsec
f45_ap1 real 0.363 microJy Flux density in IRAC band 2 in radius=1.5 arcsec
fe45_ap1 real 0.363 microJy Flux uncertainty in IRAC band 2 in radius=1.5 arcsec
f45_ap2 real 0.363 microJy Flux density in IRAC band 2 in radius=2.0 arcsec
fe45_ap2 real 0.363 microJy Flux uncertainty in IRAC band 2 in radius=2.0 arcsec
f45_ap3 real 0.363 microJy Flux density in IRAC band 2 in radius=3.0 arcsec
fe45_ap3 real 0.363 microJy Flux uncertainty in IRAC band 2 in radius=3.0 arcsec
f58_ap1 real 0.363 microJy Flux density in IRAC band 3 in radius=1.5 arcsec
fe58_ap1 real 0.363 microJy Flux uncertainty in IRAC band 3 in radius=1.5 arcsec
f58_ap2 real 0.363 microJy Flux density in IRAC band 3 in radius=2.0 arcsec
fe58_ap2 real 0.363 microJy Flux uncertainty in IRAC band 3 in radius=2.0 arcsec
f58_ap3 real 0.363 microJy Flux density in IRAC band 3 in radius=3.0 arcsec
fe58_ap3 real 0.363 microJy Flux uncertainty in IRAC band 3 in radius=3.0 arcsec
f80_ap1 real 0.363 microJy Flux density in IRAC band 4 in radius=1.5 arcsec
fe80_ap1 real 0.363 microJy Flux uncertainty in IRAC band 4 in radius=1.5 arcsec
f80_ap2 real 0.363 microJy Flux density in IRAC band 4 in radius=2.0 arcsec
fe80_ap2 real 0.363 microJy Flux uncertainty in IRAC band 4 in radius=2.0 arcsec
f80_ap3 real 0.363 microJy Flux density in IRAC band 4 in radius=3.0 arcsec
fe80_ap3 real 0.363 microJy Flux uncertainty in IRAC band 4 in radius=3.0 arcsec
f36_tot real 0.363 microJy Total source flux density in IRAC band 1 from 2" aperture, corrected to total using point source growth curves
fe36_tot real 0.363 microJy Total point source flux uncertainty in IRAC band 1
exp36 real kiloseconds Average exposure time in IRAC band 1 in radius=1.5 arcsec
exp45 real kiloseconds Average exposure time in IRAC band 2 in radius=1.5 arcsec
exp58 real kiloseconds Average exposure time in IRAC band 3 in radius=1.5 arcsec
exp80 real kiloseconds Average exposure time in IRAC band 4 in radius=1.5 arcsec
flag_muxbleed int Set to 1 of source was corrected for muxbleed
flag_blended int Set to 1 if SExtractor detection isophote (segmentation map) blends with a neighboring source