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Monitoring and search for periodic methanol masers

Published online by Cambridge University Press:  16 July 2018

M. Olech ,
M. Szymczak ,
P. Wolak  and
A. Bartkiewicz
M. Olech
Affiliation:
Centre for Astronomy, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, PL-87-100 Torun, Poland email: [email protected]
M. Szymczak
Affiliation:
Centre for Astronomy, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, PL-87-100 Torun, Poland email: [email protected]
P. Wolak
Affiliation:
Centre for Astronomy, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, PL-87-100 Torun, Poland email: [email protected]
A. Bartkiewicz
Affiliation:
Centre for Astronomy, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, PL-87-100 Torun, Poland email: [email protected]
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Abstract

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We summarize a long-term monitoring of 11 periodic 6.7 GHz methanol masers and a search for new periodic sources. Observations were carried out with the Torun 32 m telescope. Periods of observed sources range from 29 to 658 days and the data consist of more than 10 observed cycles for most of the masers. Inspection of archival data resulted in identification of 3 new periodic sources while 2 new periodic objects were found in observations started in 2014.

Keywords

maserstechniques: spectroscopicradio lines: starsstars: formation
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 13 , Symposium S336: Astrophysical Masers: Unlocking the Mysteries of the Universe , September 2017 , pp. 313 - 314
Copyright
Copyright © International Astronomical Union 2018 

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