Crowded Fields Photometry with DAOPHOT

Volume 44 number 2 (2016)

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Elisabetta Artusi

Circolo Astrofili "Galileo Galilei", viale G. Ferraris 1 30036 S. Maria di Sala (Venezia), elisabetta.artusi@outlook.com

Giancarlo Conselvan

Circolo Astrofili "Guido Ruggieri", via padre E. Gelain 7 30175 Marghera (Venezia), conselvan.giancarlo@gmail.com

Antonio Tegon

Circolo Astrofili "Guido Ruggieri", via padre E. Gelain 7 30175 Marghera (Venezia), antonio.tegon@gmail.com

Danilo Zardin

Circolo Astrofili "Galileo Galilei", viale G. Ferraris 1 30036 S. Maria di Sala (Venezia), zardin.danilo@gmail.com

Abstract

The DAOPHOT method provides an efficient solution to the problem of measuring stellar magnitudes in crowded fields. We present here a detailed description of the method as implemented in IRAF through a worked example on the emission-line star KW97 42-41. In the last chapter we also present, with the support of spectroscopic data, an analysis of the physical properties of the star.