Publication Abstracts

Nerf 1975

Nerf, R.B., Jr., 1975: Pressure broadening of the J = 1←0 transition of hydrogen cyanide. J. Molec. Spectrosc., 58, 479-480, doi:10.1016/0022-2852(75)90227-1.

Pressure broadening of microwave spectral lines is a useful source of information about rotational excitation of molecules by collisions. Such studies have been given added impetus in recent years by efforts to understand the formation of spectral Jines by interstellar molecules. Hydrogen cyanide (HCN) is of particular astrophysical interest because it is widely distributed in the interstellar medium and has a strong millimeter-wave spectrum. Laboratory broadening measurements of HCN are not possible at temperatures characteristic of interstellar clouds (<100 K) because of insufficient vapor pressure; the lowest practical temperature appears to be about that of dry ice (195 K). Broadening of the J = 1←0 line was observed at dry ice and room temperature (294 K); in addition to self-broadening, the effects of hydrogen (H2), deuterium (D2), and helium (He) were measured.

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BibTeX Citation

  author={Nerf, Jr., R. B.},
  title={Pressure broadening of the J = 1←0 transition of hydrogen cyanide},
  journal={J. Molec. Spectrosc.},

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RIS Citation

ID  - ne08000i
AU  - Nerf, R. B., Jr.
PY  - 1975
TI  - Pressure broadening of the J = 1←0 transition of hydrogen cyanide
JA  - J. Molec. Spectrosc.
VL  - 58
SP  - 479
EP  - 480
DO  - 10.1016/0022-2852(75)90227-1
ER  -

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