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2017 | OriginalPaper | Chapter

Observations of Transient Phenomena in BSA Radio Survey at 110 MHz

Authors : Vladimir A. Samodurov, Alexey S. Pozanenko, Alexander E. Rodin, Dmitry D. Churakov, Dmitry V. Dumskij, Evgeny A. Isaev, Andrey N. Kazantsev, Sergey V. Logvinenko, Vasily V. Oreshko, Maxim O. Toropov, Maria I. Volobueva

Published in: Data Analytics and Management in Data Intensive Domains

Publisher: Springer International Publishing

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Abstract

One of the most sensitive radio telescopes at the frequency of 110 MHz is a Big Scanning Antenna (BSA) in Pushchino Radio Astronomy Observatory of Lebedev Physical Institute (PRAO LPI, Moscow region, Russia). Since 2012 in the BSA the continuous survey observation was started in multibeam mode in the frequency band of 109–112 MHz. Now 96 beams covering from −8 and up to +42° in declination are used. The number of frequency bands are 6 with a time resolution of 0.1 s and 32 bands with the time resolution of 0.0125 s. In a fast mode (32 bands, 0.0125 s) daily data flow is 87.5 GB (32 TB per year). The data provide a great opportunity for both short-term and long-term monitoring of the various radio sources. The sources are fast radio transients of different nature, such as fast radio bursts (FRB), possible counterparts of gamma-ray bursts (GRB), and sources of gravitational waves, the Earth’s ionosphere, interplanetary and interstellar plasma. Based on the BSA observations the database is constructed. We discuss data base properties, the methods of transient search and allocation in database. Using this database we were able to detect 83096 individual transient events in the period of July 2012 – October 2013, which may correspond to pulsars, scintillating sources and fast radio transients. We also present first results and statistics of transients classification. In particular we report parameters of two candidates in new RRAT pulsars.

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Metadata
Title
Observations of Transient Phenomena in BSA Radio Survey at 110 MHz
Authors
Vladimir A. Samodurov
Alexey S. Pozanenko
Alexander E. Rodin
Dmitry D. Churakov
Dmitry V. Dumskij
Evgeny A. Isaev
Andrey N. Kazantsev
Sergey V. Logvinenko
Vasily V. Oreshko
Maxim O. Toropov
Maria I. Volobueva
Copyright Year
2017
DOI
https://doi.org/10.1007/978-3-319-57135-5_10

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