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Handbook of Frequency Allocations and Spectrum Protection for Scientific Uses Second Edition (2015) / Chapter Skim
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Appendix E: International Astronomical Union Spectral Lines of Most Importance Above 1 THz
Pages 244-256

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From page 244...
... The suggested minimum bandwidths are Doppler-shifted frequencies corresponding to radial velocities of ±300 km/s, consistent with line radiation occurring in our Milky Way galaxy. Because of severe atmospheric ­ ttenuation (see Figure 2.6)
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From page 245...
... 1 115.059 1 113.943 – 1 116.175 Carbon monosulphide (CS) 1 124.820 1 123.696 – 1 125.945 1 123.696 – 1 125.945 Water vapor (H218O)
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From page 246...
... 1 402.966 1 401.563 – 1 404.369 1 401.563 – 1 404.369 Water vapor (H2O) 1 410.618 1 409.207 – 1 412.029 1 409.207 – 1 412.029 Hydrogen cyanide (HCN)
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From page 247...
... 1 577.178 1 575.600 – 1 578.755 1 575.600 – 1 578.755 Hydrogen cyanide (HCN) 1 593.357 1 591.764 – 1 594.951 1 591.764 – 1 594.951 Water vapor (H2O)
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From page 248...
... 1 678.578 1 676.899 – 1 680.256 Hydrogen cyanide (HCN) 1 681.636 1 679.955 – 1 683.318 1 676.899 – 1 686.290 Heavy water (HDO)
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From page 249...
... 1 853.873 1 852.019 – 1 855.727 1 852.019 – 1 855.727 Hydrogen cyanide (HCN) 1 858.077 1 856.219 – 1 859.935 1 856.219 – 1 859.935 Carbon monoxide (C18O)
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From page 250...
... 1 930.329 1 928.398 – 1 932.259 Heavy water (HDO) 1 941.797 1 939.855 – 1 943.739 1 939.855 – 1 943.739 Hydrogen cyanide (HCN)
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From page 251...
... 2 087.226 2 085.139 – 2 089.313 2 085.139 – 2 091.330 Carbon monoxide (13CO) 2 089.241 2 087.151 – 2 091.330 Water vapor (H218O)
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From page 252...
... (GHz) Notes Water vapor (H2O)
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From page 253...
... 2 413.924 2 411.510 – 2 416.338 2 409.415 – 2 420.888 Water vapor (H218O) 2 418.469 2 416.051 – 2 420.888 Nitrogen ion (N II)
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From page 254...
... (GHz) Notes Water vapor (H2 18O)
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From page 255...
... (GHz) Notes Water vapor (H2O)
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From page 256...
... . Consolidated minimum bands reflect spectral regions where multiple molecular transitions result in overlapping recommend bandwidths; the minimum and maximum ranges reflect those of the lowest and highest frequencies for these spectral lines, respectively.
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Key Terms

  • water vapor
  • minimum band
  • consolidated minimum
  • suggested minimum
  • notes water

  • notes carbon
  • carbon monoxide
  • notes heavy
  • notes hydroxyl
  • spectral lines

  • notes azanylidene
  • notes oxonium
  • notes ammonia
  • hydrogen cyanide
  • carbon monosulphide

  • minimum bands
  • line radiation
  • radiation occurring
  • molecular spectroscopy
  • nitrogen ion

  • water vapour
  • spectral transitions
  • reflect spectral
  • spectral region
  • spectral regions

  • frequency bands
  • bands reflect
  • minimum bandwidths
  • ranges reflect
  • maximum ranges


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