SEP MIPS 70 micron Point Source Catalog Definition

SEP Overview

The Spitzer/MIPS 24 and 70 μm imaging of an 11.5 square degree region near the South Ecliptic Pole (SEP) has been carried out in order to complement sub-millimeter wavelength observations (250-500 μm) of the same region of sky taken with the Balloon-borne Large Aperture Sub-millimeter Telescope (BLAST), with the goal of better characterizing the nature of sub-millimeter selected galaxies and their role in galaxy evolution. This field has also been extensively mapped at other wavelengths, and will be imaged from 100-500 μm as part of the Herschel Multi-tiered Extragalactic Survey (HerMES).

Complete documentation can be found in Scott et al. (2010); please reference this paper if you use these data in your research.

SEP MIPS 70 micron Point Source Catalog Criteria

Candidate extended sources were identified by comparing PRF-fitted fluxes to aperture fluxes at 7.4" and 16" radius (24 and 70 microns, respectively). Sources for which the fluxes disagree (3 sigma) and the corrected aperture flux is higher are considered possible extended sources. These candidates are matched to known objects in NED. Sources requiring an aperture larger than 15" (24 microns) or 36" (70 microns) are measured using aperture photometry on the point source subtracted residual image.

SEP MIPS Extended Catalog Column Descriptions

Gator serves the SEP MIPS Extended Source Catalog (16 columns, 63 data rows).

Name Intype Units Description
srcid24 int Source identification from MIPS24 catalog
srcid70 int Source identification from MIPS70 catalog. Sources with null ID are either not detected at 70 microns or are located outside the coverage region of the 70 micron mosaic map. Sources with non-null srcid70 but null values in all other 70 micron columns are listed in the SEP MIPS 70 micron Point Source Catalog.
srcname char Source name from NED
ra double degree Right Ascension (J2000)
dec double degree Declination (J2000)
xc24 real pixels Mosaic x-coordinate for source in 24 micron map
yc24 real pixels Mosaic y-coordinate for source in 24 micron map
xc70 real pixels Mosaic x-coordinate for source in 70 micron map
yc70 real pixels Mosaic y-coordinate for source in 70 micron map
aperture24 real microJy Aperture photometry at 24 micron
ap_unc24 real microJy Uncertainty in flux for aperture24
aperture70 real microJy Aperture photometry at 70 micron
ap_unc70 real microJy Uncertainty in flux for aperture70
ap_rad_as real arcsec Aperture radius used (arcsec)
ap24_rad_pix int pixels Aperture radius used for 24 micron photometry (pixels)
ap70_rad_pix int pixels Aperture radius used for 70 micron photometry (pixels)