C2D Overview

IRSA provides access to data from the final delivery (DR4, Fall 2006 and Fall 2007) of the Spitzer Space Telescope "From Molecular Cores to Planet-Forming Disks" (c2d) Legacy Project. The data are also available as Enhanced Products from the Spitzer Science Center (SSC).

c2d has delivered 867 catalogs. IRSA has merged these delivered catalogs into four groups - Clouds, Off-Cloud, Cores, Stars - and serves them through the general catalog search engine Gator. Many of the delivered catalogs, images and spectra are accessible through IRSA's general search service, Atlas. A summary of the catalogs types and how to access them is as follows:

Catalog Name	Content	Gator Access (merged)	Atlas Access (as delivered)
FULL	Complete source lists (Section 3.2 of c2d data delivery document [ps | pdf])	Y	Y
HREL	Derived from the full catalogs are high reliability catalogs (Section 3.2.1 [ps | pdf])	Y	Y
YSOc	Derived from the full catalogs are young stellar object candidates (Section 3.2.2 [ps | pdf])	Y	Y
MM	Millimeter wavelength source lists (Section 3.2.3 [ps | pdf])	Y	Y
Transients	Catalogs of transients in two epochs (Section 3.2.4 [ps | pdf])	Y	N
resampled-SWIRE	Resampled sources in the ELAIS N1 field measured by the SWIRE Legacy Project, that have been used to study c2d background contamination (Section 3.8 [ps | pdf])	N (see footnote 1 for download information) 1	N (see footnote 1 for download information) 1

¹ resampled-SWIRE catalogs can be downloaded in their entirety per cloud (CHA_II, LUP, OPH, PER, and SER).

The data are also available for direct download as follows: images and associated catalogs are organized according to object type - CORES or STARS - or the names of 5 major CLOUDS - ChamaeleonII (CHA_II), Lupus (LUP), Ophiuchus (OPH), Perseus (PER) and Serpens (SER); IRS spectra and MIPS SED's are organized by object name.

C2D Transient Source Catalog Definitions

Gator serves the following C2D Transient Source catalogs:

• catalog-PER_TRANSIENTS_1-FULL.tbl - FULL catalog PER Cloud, Epoch 1
• catalog-PER_TRANSIENTS_2-FULL.tbl - FULL catalog PER Cloud, Epoch 2

Please refer to the data delivery documentation for further information. The column descriptions can be found below.

valign="top"name	intype	units	description
ra	real	deg	Right Ascension [J2000]
dec	real	deg	Declination [J2000]
MP1_flux	real	mJy	MIPS1 (MIPS 24 um) flux
MP1_D_flux	real	mJy	Uncertainty in MIPS1 (MIPS 24 um) flux