Experimental Astronomy

, Volume 35, Issue 1–2, pp 319–327 | Cite as

VST OmegaCAM difference image analysis

Astro-WISE implementation
  • Fedor I. Getman
  • Silvio Leccia
  • Aniello Grado
  • Roberto Silvotti
Original Article

Abstract

We present a modified version of the difference image analysis software developed by the OGLE collaboration (DIAPL) and its implementation within AstroWISE environment. Python interface and parallel execution are described. Examples of graphical output on simulated data set are presented. The tool will be used in VST surveys for photometric variability search.

Keywords

Difference image Light curve Variability VST 

References

  1. 1.
    Alard, C., Lupton, R.H.: A method for optimal image subtraction. Astrophys. J 503, 325 (1998)ADSCrossRefGoogle Scholar
  2. 2.
    Alard, C.: Image subtraction using a space-varying kernel. Astron. Astrophys. Suppl. Ser. 144, 363 (2000). doi:10.1051/aas:2000214 ADSCrossRefGoogle Scholar
  3. 3.
    Stetson, P.B.: The center of the core-cusp globular cluster M15: CFHT and HST Observations, ALLFRAME reductions. Publ. Astron. Soc. Pac. 106, 250 (1994). doi:10.1086/133378 ADSCrossRefGoogle Scholar
  4. 4.
    Woźniak, P.R.: Difference image analysis of the OGLE-II bulge data. I. The Method. Acta Astron. 50, 421 (2000)ADSGoogle Scholar
  5. 5.
    Woźniak, P.R., Udalski, A., Szymanski, M., et al.: Difference image analysis of the OGLE-II bulge data. Acta Astron. 52, 129 (2002)ADSGoogle Scholar

Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  • Fedor I. Getman
    • 1
  • Silvio Leccia
    • 1
  • Aniello Grado
    • 1
  • Roberto Silvotti
    • 1
  1. 1.OATo INAFTorinoItaly

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