International Conference
The multi-messenger astronomy:
gamma-ray bursts, search for electromagnetic counterparts to
neutrino events and gravitational waves

7-14 October 2018

Search and study of optical transients with Mini-MegaTORTORA N.V. Orekhova, G.M. Beskin, A.V. Birykov, S.F. Bondar, E.A. Ivanov, S.V. Karpov, E.V. Katkova, A.V. Perkov, V.L. Plokhotnichenko, V.V. Sasyk

Abstract

      We present the four-year observation results of the Mini-MegaTORTORA (MMT-9) nine-channel wide-field optical sky monitoring system with subsecond temporal resolution. This instrument scans the sky on every clear night with a FoV as large as 900 deg². It is used for real-time detection and classification of optical transients, three-filter photometry close to Johnson's BVR system, and polarimetry of detected objects. The limiting magnitude of the system is V = 11m for 0.1 s (one frame duration) temporal resolution, and reaches V = 13-14 m for an exposure of several minutes. The system is equipped with a powerful computing facility and a dedicated software pipeline to perform automatic detection, real-time classification, and investigation of transient events of different natures moving in the near-Earth space located in the Galaxy and at cosmological distances. Properties of meteors and satellite samples, variable stars, and GRBs detected using MMT-9 are discussed.

Reference:
N.V. Orekhova, G.M. Beskin, A.V. Birykov, S.F. Bondar, E.A. Ivanov, S.V. Karpov, E.V. Katkova, A.V. Perkov, V.L. Plokhotnichenko, V.V. Sasyk "Search and study of optical transients with Mini-MegaTORTORA", in Proceedings of the International Conference "The multi-messenger astronomy: gamma-ray bursts, search for electromagnetic counterparts to neutrino events and gravitational waves", Russia, Nizhnij Arkhyz (SAO RAS), Terskol (BNO INR RAS), October, 7 - 14, 2018, Publishing house SNEG, Pyatigorsk, 2019, ISBN 978-5-6041711-1-0, pp.161-168.
DOI: 10.26119/SAO.2019.1.35544
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