Published in

American Astronomical Society, Astronomical Journal, 6(128), p. 3082-3091, 2004

DOI: 10.1086/344941

Links

Tools

Export citation

Search in Google Scholar

The Digitized Second Palomar Observatory Sky Survey (DPOSS) II: Photometric Calibration

Journal article published in 2002 by R.~R R. Gal ORCID, R.~R R. de Carvalho, S.~C C. Odewahn, S.~G G. Djorgovski, A.~A A. Mahabal, R.~J J. Brunner, P.~A.~A A. A. Lopes
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

Full text: Download

Red circle
Preprint: archiving forbidden
Red circle
Postprint: archiving forbidden
Green circle
Published version: archiving allowed
Upload
Policy details
Data provided by SHERPA/RoMEO

Abstract

We present the photometric calibration technique for the Digitized Second Palomar Observatory Sky Survey (DPOSS), used to create seamless catalogs of calibrated objects over large sky areas. After applying a correction for telescope vignetting, the extensive plate overlap regions are used to transform sets of plates onto a common instrumental photometric system. Photometric transformations to the Gunn gri system for each plate, for stars and galaxies, are derived using these contiguous stitched areas and an extensive CCD imaging library obtained for this purpose. We discuss the resulting photometric accuracy, survey depth, and possible systematic errors.