Search for microwave H2O emission in Comet Bennett /1969i/
Microwave water emission in Comet Bennett, deriving column density for various temperatures of cometary gas
Clark, T. A.↗
Engineering topics
Jackson, W. M.
Publications and source records attributed to Jackson, W. M..
Search for microwave H2O emission in Comet Bennett /1969i/
Using 85-foot telescope to detect 22,235 MHz transition of H2O during appearance of Comet Benett
Clark, T. A.↗
Absorbing ice model of interstellar grains.
Extinction curves have been calculated for Mie scattering by grains with a refractive index m equals to n - ik, where n was between 1.3 and 2.0 and k varied from 0 to 0.5. A good fit for the observed interstellar extinction in the wavelength region of 0.1 to 2.0 microns was obtained for particles with a radius of 0.1 micron and m equal to 1.3 - 0.2i. Inclusion of the changes in the refractive index in the vacuum ultraviolet region due to the strong absorptions of methane, ammonia and water does not appreciably alter these results. Theoretical extinction curves for the composite medium of H2O, NH3, CH4, and graphite show a general agreement with the observed interstellar reddening curve over the whole spectral range, in addition to producing kinks in the far-ultraviolet region.
Swamy, K. S. K.↗
Photochemical effects in the production of cometary radicals and ions.
Photochemical production of cometary molecular radicals and ions, comparing observed densities with calculations based on photodissociation and photoionization
Donn, B.↗
Photolysis of gaseous benzene at 1470 angstrom units.
Photolysis of gaseous and liquid benzene, analyzing gaseous products by gas chromatography and mass spectrometry
MASS SPECTROMETRY↗
Vacuum-ultraviolet photolysis of ethane films.
Vacuum UV photolysis of solid ethane films, measuring product distributions, presenting evidence for quenching of excited ethane and ethylene
ETHANE↗
Collisional processes in the inner coma.
Collisions in inner region of cometary head, structure of emission bands and formation of free radicals
EMISSION SPECTRUM↗