SHELA SDSS Stripe 82 Catalog Definitions
Overview
The Spitzer/HETDEX Exploratory Large-Area (SHELA) survey covers ~24 deg^2 of the Sloan Digital Sky Survey "Stripe 82" region, and falls within the footprints of the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) and the Dark Energy Survey. The images and catalogs are 80% (50%) complete to limiting magnitudes of 22.0 (22.6) AB mag in the detection image, which is constructed from the weighted sum of the IRAC 3.6 and 4.5 micron images. The catalogs reach limiting sensitivities of 1.1 microJy at both 3.6 and 4.5 microns (1sigma, for R = 2" circular apertures).
| Name |
Intype |
Units |
Description |
| SHELA_ID |
int |
|
SHELA object ID |
| SDSS_ID |
char |
|
SDSS object ID |
| ra |
double |
deg |
SDSS Right Ascension (J2000) |
| dec |
double |
deg |
SDSS Declination (J2000) |
| STYPE |
int |
|
SDSS Type
The most common type values are STYPE=3 for Galaxy or STYPE=6 for Star. |
| FLAGS |
char |
|
SDSS Flags |
| U_MAG |
double |
mag |
SDSS u magnitude (AB), corrected for Galactic extinction |
| UERR |
double |
mag |
Uncertainty in U_MAG |
| G_MAG |
double |
mag |
SDSS g magnitude (AB), corrected for Galactic extinction |
| GERR |
double |
mag |
Uncertainty in G_MAG |
| R_MAG |
double |
mag |
SDSS r magnitude (AB), corrected for Galactic extinction |
| RERR |
double |
mag |
Uncertainty in R_MAG |
| I_MAG |
double |
mag |
SDSS i magnitude (AB), corrected for Galactic extinction |
| IERR |
double |
mag |
Uncertainty in I_MAG |
| Z_MAG |
double |
mag |
SDSS z magnitude (AB), corrected for Galactic extinction |
| ZERR |
double |
mag |
Uncertainty in Z_MAG |