Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26as...73..209m&link_type=abstract
Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 73, no. 2, May 1988, p. 209-216.
Astronomy and Astrophysics
Astrophysics
2
Interstellar Masers, Interstellar Matter, Molecular Spectra, Water Masers, Long Term Effects, Molecular Clouds, Radio Spectra
Scientific paper
A time variability study of the 22.2 GHz emission of the strong H2O maser in Cepheus A has been carried out in the time period October 1980 - April 1985 using the 14-m radio telescope at Metsähovi. The authors describe the equipment, the observing and the calibration methods used in this monitoring program. The observations were made with a time interval of typically from 2 weeks to one month, but for three occasions they monitored the source on an almost daily basis. The individual spectra are presented in this paper and the long term time variability features are briefly discussed.
Anttila R.
Liljestrom Tarja
Malkamaki L.
Mattila Kalevi
Toriseva M.
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