Searching the short-period variable stars with the photometric algorithm implemented in LUIZA framework

Lukasz Obara; Aleksander Filip Żarnecki

doi:10.1117/12.2205524

11 September 2015 Searching the short-period variable stars with the photometric algorithm implemented in LUIZA framework

Lukasz Obara, Aleksander Filip Żarnecki

Author Affiliations +

Proceedings Volume 9662, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2015; 96621D (2015) https://doi.org/10.1117/12.2205524
Event: XXXVI Symposium on Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments (Wilga 2015), 2015, Wilga, Poland

Abstract

Pi of the Sky is a system of wide field-of-view robotic telescopes, which search for short timescale astrophysical phenomena, especially for prompt optical GRB emission. The system was designed for autonomous operation, monitoring a large fraction of the sky with 12^m-13^m range and time resolution of the order of 1 - 100 seconds. LUIZA is a dedicated framework developed for efficient off-line processing of the Pi of the Sky data, implemented in C++.

The photometric algorithm based on ASAS photometry was implemented in LUIZA and compared with the algorithm based on the pixel cluster reconstruction and simple aperture photometry algorithm. Optimized photometry algorithms were then applied to the sample of test images, which were modified to include different patterns of variability of the stars (training sample). Different statistical estimators are considered for developing the general variable star identification algorithm. The algorithm will then be used to search for short-period variable stars in the real data.

Citation Download Citation

Lukasz Obara and Aleksander Filip Żarnecki "Searching the short-period variable stars with the photometric algorithm implemented in LUIZA framework", Proc. SPIE 9662, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2015, 96621D (11 September 2015); https://doi.org/10.1117/12.2205524

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