EDP Sciences
Free access
Volume 397, Number 1, January I 2003
Page(s) 371 - 379
Section Physical and chemical processes
DOI http://dx.doi.org/10.1051/0004-6361:20021483

A&A 397, 371-379 (2003)
DOI: 10.1051/0004-6361:20021483

Yet another object detection application (YODA)

Object detection and photometry for multi-band imaging data
N. Drory

Universitäts-Sternwarte München, Scheinerstr. 1, 81679 München, Germany
(Received 18 August 2002 / Accepted 8 October 2002)

We present a software package performing object detection, photometry and star-galaxy classification specially developed to cope with multi-band imaging data as are common in modern extragalactic imaging surveys, and to be modular and therefore easily adaptable to specific needs. Specifically, the package is designed to work under conditions of inhomogeneous background noise across the detection frame, and, additionally, perform accurate aperture photometry in image sets not sharing a common coordinate system or pixel scale as is often the case in present-day extragalactic survey work. The package has been used for the MUNICS survey. The package is described in detail and its performance is compared to existing software using real imaging data.

Key words: methods: data analysis -- techniques: image processing -- galaxies: photometry

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