Detection of sources of periodic radio emission with the Large Phased Array of the Lebedev Physical Institute


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Abstract

A method for searching for new periodic radio sources is described. The method is based on the spectral analysis of data from daily monitoring of the sky on the Large Phased Antenna (LPA) of the Pushchino Radio Astronomy Observatory at 111 MHz in a 2.5-MHz band. The 96-beam directivity pattern of the LPA is used. The signal is received in six 0.42-MHz frequency channels with a sampling rate of 0.1 s. The duration of the processed survey is four months. The particulars of detecting periodic sources with the LPA are considered. In total, 16 such radio sources have been detected, for which equatorial and Galactic coordinates, periods, and dispersion measures are given.

About the authors

A. E. Rodin

Pushchino Radio Astronomy Observatory, Astro Space Center, Lebedev Physical Institute

Author for correspondence.
Email: rodin@prao.ru
Russian Federation, Pushchino, Moscow oblast, 142290

V. V. Oreshko

Pushchino Radio Astronomy Observatory, Astro Space Center, Lebedev Physical Institute

Email: rodin@prao.ru
Russian Federation, Pushchino, Moscow oblast, 142290

V. A. Samodurov

Pushchino Radio Astronomy Observatory, Astro Space Center, Lebedev Physical Institute; Higher School of Economics—National Research University

Email: rodin@prao.ru
Russian Federation, Pushchino, Moscow oblast, 142290; Moscow

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