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Spectroscopic Observations in the 3-mm Wavelength Range at CrAO RT-22 Radiotelescope Using an Acousto-Optical Spectrum Analyzer

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Abstract

Within the framework of a multi-year program of dense interstellar gas studies, we performed a new series of observations at the CrAO RT-22 radiotelescope in July 1998 using an improved 3-mm wavelength receiving facility. An acousto-optical spectrum analyzer (AOS) was used for the first time for the spectral analysis of incoming radiation. The AOS has larger bandwidth compared to the filter spectrum analyzer used previously and simplifies tuning SIS-mixer circuits and frequency converters. Using this facility, we observed a number of star-forming regions including clouds associated with bright IR sources and ultracompact HII regions as well as clouds with high-velocity outflows in the HCO+, 13CO, HCN, and CS molecule lines.

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Authors and Affiliations

  1. St. Petersburg Technical University, St. Petersburg, Russia

    N. A. Esepkina, I. I. Saenko & S. K. Kruglov

  2. Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod, Russia

    I. I. Zinchenko, V. F. Vdovin, A. I. Eliseev, I. V. Lapkin, L. E. Pirogov, V. N. Shanin & A. M. Shtanyuk

  3. Radioastronomical Institute of the National Academy of Sciences of Ukraine, Kharkov, Ukraine

    A. V. Antyufeev, V. V. Myshenko & V. M. Shul'ga

  4. Crimean Astrophysical Observatory, Katsiveli, Ukraine

    N. S. Nesterov

Authors
  1. N. A. Esepkina
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  2. I. I. Zinchenko
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  3. I. I. Saenko
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  4. A. V. Antyufeev
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  5. V. F. Vdovin
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  6. A. I. Eliseev
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  7. S. K. Kruglov
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  8. I. V. Lapkin
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  9. V. V. Myshenko
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  10. N. S. Nesterov
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  11. L. E. Pirogov
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  12. V. N. Shanin
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  13. A. M. Shtanyuk
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  14. V. M. Shul'ga
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Esepkina, N.A., Zinchenko, I.I., Saenko, I.I. et al. Spectroscopic Observations in the 3-mm Wavelength Range at CrAO RT-22 Radiotelescope Using an Acousto-Optical Spectrum Analyzer. Radiophysics and Quantum Electronics 43, 841–846 (2000). https://doi.org/10.1023/A:1010339532093

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  • DOI: https://doi.org/10.1023/A:1010339532093

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