Spectral observations of OH and water maser sources at the Crimean Astrophysical Observatory with the RT-22 radio telescope

Details Spectral observations of OH and water maser sources at the Crimean Astrophysical Observatory with the RT-22 radio telescope Spectral observations of OH and water maser sources at the Crimean Astrophysical Observatory with the RT-22 radio telescope

Oct 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006a%26at...25..379v&link_type=abstract

Astronomical and Astrophysical Transactions, vol. 25, Issue 5, p.379-384

Astronomy and Astrophysics

Astronomy

1

Scientific paper

Observations of almost all know cosmic masers from decimetre to millimetre wavebands have been performed at the Radio Astronomy Laboratory of the Crimean Astrophysical Observatory with the 22 m radio telescope RT-22. Modernization of existing receivers was performed and also receiving systems were created with maximum possible sensitivities in new frequency ranges that were selected from observations of the least studied maser sources with the 5 GHz room-temperature and cryoelectronic radiometers in the single-antenna mode; observations of star-forming regions were conducted using the spectral line of the OH molecule at a frequency of 4765 MHz with a spectral resolution of 0.06 km s-1. The observations of stars of early and late spectral classes were conducted, and spectra were obtained using the spectral lines of water vapour and the OH molecule at frequencies of 1612, 1665, 1667 and 1720 MHz with a spectral resolution of 0.02 km s-1. In addition, utilizing the 22 GHz cryoelectronic receiver in the single-antenna mode, spectral observations of star-forming regions were conducted, and spectra obtained for the spectral line of water vapour.

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