PACS Extended Source List Definitions

Overview

To maximise the science return of the PACS data sets, a homogeneous Herschel/PACS Point Source Catalogue (HPPSC) was constructed from all the scan map observations. The catalogue enables a systematic and unbiased comparison of sensitivity across different Herschel fields that single programs will generally not be able to provide.

The Herschel/PACS Extended Source List (HPESL) contains slightly extended objects, extracted from database source table. Quality criteria are similar to those for point sources, with two exceptions. No condition was imposed about ratio of flux values measured in different apertures, and FWHM of extended source must satisfy: 2*PSF < FWHM < 5*PSF

For more information, see the Explanatory Supplement.

Name	Intype	Units	Description
name	char		Object name
band	char		PACS band
ra	double	deg	Right Ascension (J2000)
dec	double	deg	Declination (J2000)
raerr	double	deg	uncertainty in RA
decerr	double	deg	uncertainty in Dec
flux	double	mJy	Flux
sn_s	double		S/N based on a statistical approach
sn_r	double		S/N based on RMS
n_s	double	MJy/sr	Structure noise
fwhmx	double	arcsec	FWHM along x axis
fwhmy	double	arcsec	FWHM along y axis
flag_elong	double		Elongation flag (fwhmy/fwhmx)
edgeflag	char		Edge flag
obsid	long		First OBSID from the list that builds the map