a pipeline for the rotse–iiid archival data

 

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°) and it considerably covers a large portion of northern sky (δ > − 25°). 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.