The Digitized Second Palomar Observatory Sky Survey (DPOSS). II. Photometric calibration

R. R. Gal, R. R. De Carvalho, S. C. Odewahn, S. G. Djorgovski, A. Mahabal, R. J. Brunner, P. A.A. Lopes

Research output: Contribution to journalReview article

Abstract

We present the photometric calibration technique for the Digitized Second Palomar Observatory Sky Survey, 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.

Original languageEnglish (US)
Pages (from-to)3082-3091
Number of pages10
JournalAstronomical Journal
Volume128
Issue number6
DOIs
StatePublished - Dec 1 2004

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observatories
observatory
calibration
vignetting
transform
systematic errors
catalogs
sky
charge coupled devices
telescopes
galaxies
stars
library

Keywords

  • Catalogs
  • Surveys
  • Techniques: photometric

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Gal, R. R., De Carvalho, R. R., Odewahn, S. C., Djorgovski, S. G., Mahabal, A., Brunner, R. J., & Lopes, P. A. A. (2004). The Digitized Second Palomar Observatory Sky Survey (DPOSS). II. Photometric calibration. Astronomical Journal, 128(6), 3082-3091. https://doi.org/10.1086/344941

The Digitized Second Palomar Observatory Sky Survey (DPOSS). II. Photometric calibration. / Gal, R. R.; De Carvalho, R. R.; Odewahn, S. C.; Djorgovski, S. G.; Mahabal, A.; Brunner, R. J.; Lopes, P. A.A.

In: Astronomical Journal, Vol. 128, No. 6, 01.12.2004, p. 3082-3091.

Research output: Contribution to journalReview article

Gal, RR, De Carvalho, RR, Odewahn, SC, Djorgovski, SG, Mahabal, A, Brunner, RJ & Lopes, PAA 2004, 'The Digitized Second Palomar Observatory Sky Survey (DPOSS). II. Photometric calibration', Astronomical Journal, vol. 128, no. 6, pp. 3082-3091. https://doi.org/10.1086/344941
Gal RR, De Carvalho RR, Odewahn SC, Djorgovski SG, Mahabal A, Brunner RJ et al. The Digitized Second Palomar Observatory Sky Survey (DPOSS). II. Photometric calibration. Astronomical Journal. 2004 Dec 1;128(6):3082-3091. https://doi.org/10.1086/344941
Gal, R. R. ; De Carvalho, R. R. ; Odewahn, S. C. ; Djorgovski, S. G. ; Mahabal, A. ; Brunner, R. J. ; Lopes, P. A.A. / The Digitized Second Palomar Observatory Sky Survey (DPOSS). II. Photometric calibration. In: Astronomical Journal. 2004 ; Vol. 128, No. 6. pp. 3082-3091.
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