Photometry using the Infrared Array Camera on the Spitzer Space Telescope

November 2008 • 2008PASP..120.1233H

Authors • Hora, Joseph L. • Carey, Sean • Surace, Jason • Marengo, Massimo • Lowrance, Patrick • Glaccum, William J. • Lacy, Mark • Reach, William T. • Hoffmann, William F. • Barmby, Pauline • Willner, S. P. • Fazio, Giovanni G. • Megeath, S. Thomas • Allen, Lori E. • Bhattacharya, Bidushi • Quijada, Manuel

Abstract • We present several corrections for point-source photometry to be applied to data from the Infrared Array Camera (IRAC) on the Spitzer Space Telescope. These corrections are necessary because of characteristics of the IRAC arrays and optics and the way the instrument is calibrated in flight. When these corrections are applied, it is possible to achieve a ∼2% relative photometric accuracy for sources of adequate signal-to-noise ratio in an IRAC image.


IPAC Authors

Sean Carey

Senior Scientist


Patrick Lowrance

Senior Scientist