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arXiv · 1108.2823

A Pipeline for the ROTSE-IIId Archival Data

B. B. Güçsav·C. Yeşilyaprak·S. K. Yerli·N. Aksaker·Ü. Kızıloğlu·D. Çoker·E. Dikicioğlu·M. E. Aydın
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Abstract

We have constructed a new, fast, robust and reliable pipeline to detect variable stars from the ROTSE-IIId archival data. Turkish share of ROTSE-III archive contains approximately one million objects from a large field of view (1.85\dgr) and it considerably covers a large portion of northern sky ($δ>-25\dgr$). The unfiltered ROTSE-III magnitude of the objects ranges from 7.7 to 16.9. The main stages of the new pipeline are as follows: Source extraction, astrometry of the objects, light curve generation and inhomogeneous ensemble photometry. A high performance computing (HPC) algorithm has also been implemented into the pipeline where we had a good performance even on a personal computer. Running the algorithms of the pipeline on a cluster decreases analysis time significantly from weeks to hours. The pipeline is especially tested against long period variable stars with periods of a few hundred days (e.g Mira and SR) and variables having periods starting from a few days to a few hundred days were detected.

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B. B. Güçsav, C. Yeşilyaprak, S. K. Yerli, N. Aksaker, Ü. Kızıloğlu, D. Çoker, E. Dikicioğlu, M. E. Aydın. 2012-01-02. A Pipeline for the ROTSE-IIId Archival Data. https://doi.org/10.1007/s10686-011-9283-9

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