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The search of radio transients in the RATAN-600 radio telescope surveys

Published online by Cambridge University Press:  30 May 2017

Olga P. Zhelenkova  and
Elena K. Majorova
Olga P. Zhelenkova
Affiliation:
Special Astrophysical Observatory of the Russian Academy of Sciences, 369167, Nizhnij Arkhys, Russia email: [email protected] Dept. of Information and Communication Technologies in Astrophysics and Astro Instrumentation, ITMO University, 197101, Saint-Petersburg, Russia
Elena K. Majorova
Affiliation:
Special Astrophysical Observatory of the Russian Academy of Sciences, 369167, Nizhnij Arkhys, Russia email: [email protected]
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Abstract

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We present the results of the search of variable sources and transient events in the archive data of the sky surveys conducted on 3.9 GHz on the RATAN-600 radio telescope of the Special Astrophysical Observatory of the Russian Academy of Sciences (SAO RAS) in 1980-1994. 17% of the total studied sources can be attributed to the variables in radio range. About half of them has significant variations in optical brightness according to the data of the catalogs. At the level of 3-5 r.m.s. we found three transient events. Two weak events probably associated with AGN activities or with cataclysmic events such as GRB and a supernova flash. The nature of the third event has not been established. According to our estimation the surface density of radio transients is 0.03 on one square angular degree with the detection level 8–11 mJy on 3.94 GHz.

Keywords

radio continuum: astronomical data bases: miscellaneoussurveysgalaxies: activeradio continuum: galaxiesmethods: data analysis
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S325: Astroinformatics , October 2016 , pp. 270 - 273
Copyright
Copyright © International Astronomical Union 2017 

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