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Torun methanol maser monitoring program

Published online by Cambridge University Press:  07 February 2024

P. Wolak Open the ORCID record for P. Wolak [Opens in a new window] ,
M. Szymczak ,
A. Bartkiewicz Open the ORCID record for A. Bartkiewicz [Opens in a new window] ,
M. Durjasz Open the ORCID record for M. Durjasz [Opens in a new window] ,
A. Kobak Open the ORCID record for A. Kobak [Opens in a new window]  and
M. Olech Open the ORCID record for M. Olech [Opens in a new window]
P. Wolak*
Affiliation:
Institute of Astronomy, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100Torun, Poland.
M. Szymczak
Affiliation:
Institute of Astronomy, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100Torun, Poland.
A. Bartkiewicz
Affiliation:
Institute of Astronomy, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100Torun, Poland.
M. Durjasz
Affiliation:
Institute of Astronomy, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100Torun, Poland.
A. Kobak
Affiliation:
Institute of Astronomy, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100Torun, Poland.
M. Olech
Affiliation:
Space Radio-Diagnostic Research Center, Faculty of Geoengineering, University of Warmia and Mazury, Oczapowskiego 2, PL-10-719 Olsztyn, Poland
*
email: [email protected]
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Abstract

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Since 2009, the Torun 32 m radio telescope has been used to monitor a sample of ∼140 sources of the 6.7 GHz methanol maser emission. In 2022, the sample was extended to about 250 targets. Approximately three-quarters show variability greater than 10% on timescales of a few weeks to several years. The most significant results are detecting a few flare events and discovering about a dozen periodic variables with periods ranging from a month to a few years. Here, we present the preliminary analysis of the properties of periodic masers.

Keywords

masersradio lines: ISMstars: formation
Type
Poster Paper
Information
Proceedings of the International Astronomical Union , Volume 18 , Symposium S380: Cosmic Masers: Proper Motion toward the Next-Generation Large Projects , December 2022 , pp. 264 - 265
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Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of International Astronomical Union

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