Spitzer/IRAC observations of the central 2.0 deg by 1.4 deg (~ 280 pc by 200 pc)
of the Galaxy were obtained at 3.6-8.0 microns in Cycle 1 (GO 3677, PI:
Stolovy). These data have a spatial resolution ~2 arcsec, and were, at the time,
the highest spatial resolution and uniform sensitivity large-scale map of the
Galactic Center at mid-infrared wavelengths.
A point source catalog of 1,065,565 objects was obtained. The catalog includes
magnitudes for the point sources at 3.6, 4.5, 5.8, and 8.0 microns, as well as
JHK photometry from 2MASS. The point source catalog is confusion limited with
average limits of 12.4, 12.1, 11.7, and 11.2 magnitudes for [3.6], [4.5], [5.8],
and [8.0], respectively. The confusion limits are spatially variable because of
stellar surface density, background surface brightness level, and extinction
variations across the survey region.
If you use GALCEN, please cite both Ramírez et al. (2008)
and the dataset Digital Object Identifier (DOI): 10.26131/IRSA505.
|
GALCEN Overview
IRSA Catalog Search Tool: GALCEN