SC/11.2

Starlink Project
Starlink Cookbook 11.2

G. Sandell, N. Jessop, T. Jenness
Joint Astronomy Centre, Hilo, Hawaii

29th October 2001


The SCUBA map reduction cookbook

pdfpict

Contents

1 Introduction
2 The really easy way
3 The difficult way
 3.1 How to find and access SCUBA data?
4 Jiggle maps
 4.1 The bare minimum
5 A Fuller Reduction: Removing bad bolometers, sky-noise and spikes
 5.1 Identifying and Blanking Noisy Bolometers
 5.2 Initial sky noise removal
 5.3 Initial Despiking
 5.4 Sky noise removal (a)- remsky.
 5.5 Sky noise removal (b)- calcsky
 5.6 Manual Despiking
 5.7 Pointing corrections and final map creation
 5.8 Coadding data, or how to deal with long integrations
6 Scan maps
 6.1 Despiking
 6.2 Base line removal - scan_rlb
 6.3 Sky noise removal in scan maps
 6.4 Conventional scan maps
 6.5 Scan maps taken with the “Emerson2” technique
7 Map calibration
 7.1 Analyzing beam maps
 7.2 Calibrating in Jy/(solid angle)
 7.3 Calibrating maps in Jy/beam
  7.3.1 Calibrating on Planets
  7.3.2 Using secondary calibrators
  7.3.3 How do we extract information from a map calibrated in Jy/beam
8 Common error-messages – what have I done wrong?
References

References

[1]   Eaton N., McIlwrath, B., 2000, AGI–Applications Graphics Interface Library AGI

[2]   Jenness T., Lightfoot J. F., 1997, SURF – SCUBA User Reduction Facility, Starlink User Note 216

[3]   Bly M. J., 2000, Starlink Software CD-ROMs Spring 2000 User’s Guide Starlink Software CD-ROMs Spring 2000 User’s Guide

[4]   Currie M. J., 1997, KAPPA — Kernel Application Package, Starlink User Note 95

[5]   Shortridge K., Meyerdierks H., Currie M. J., Clayton M., FIGARO – A general data reduction system, Starlink User Note 86

[6]   Draper P. W., 1997, GAIA – Graphical Astronomy and Image Analysis Tool, Starlink User Note 214

[7]   Lightfoot J. F., Harrison P. A., Meyerdierks H., 1995, JCMTDR – Applications for reducing JCMT data, Starlink User Note 132

[8]   Duncan, W. D., SCUBA project documentation, SCU/WDD/31.1/1093

[9]   Emerson, D.T., Klein, U., & Haslam, C.G.T., 1979, A&A, 76, 92

[10]   Currie M. J., Privett G. J., Chipperfield A. J., 1995 CONVERT – A format-conversion package, Starlink User Note 55

[11]   Archibald, E. et al. 2002, MNRAS, 336, 1

[12]   Coulson, I., 2001 Scuba Jiggle Maps, http://docs.eao.hawaii.edu/JCMT/SCD/SN/003

[13]   Hogherheijde, M.R., Sandell, G., 2000, ApJ, 534, 880

[14]   Jenness, T., Stevens, J.A., Archibald, E.N., Economou, F., Jessop, N.E., Robson, E.I., 2002, MNRAS, 336, 14

[15]   Pierce-Price, D., et al., 2000, ApJ, 545, L121

[16]   Sandell, G., Weintraub, D.A., 2001, ApJS, 134, 115

[17]   Weintraub, D.A., et al., 1999, ApJ, 517, 819