SHIPsPhot

Purpose of this page:

• Provide photometry references for Herschel specific photometry

Aperture Photometry Parameters

Recommended Values for NGC 281

Filter	Aperture Radius (")	Inner Sky Radius (")	Outer Sky Radius (")	Aperture Correction
70 microns	9.6	9.6	19.2	0.7331
100 microns	9.6	9.6	19.2	0.6944
160 microns	12.8	12.8	25.6	0.6602

The Big Picture

• Gather relevant and previously available photometry on NGC 281 (DONE, except Spitzer)
• Gather images from previous surveys (DONE)
• Herschel Images (DONE, but may be reprocessed)
• Aperture Photometry
• PSF photometry (Preliminary version, calibration missing).
• Check Aperture photometry for bad sources, missed sources.
• Create flags for all sources.
• Check Aperture vs. PSF photometry. Select one or the other for each protostar.
• Finalize Herschel photometry
• Merge all photometry.