Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984rpspr...2...79k&link_type=abstract
In its USSR Rept.: Space (JPRS-USP-84-005) p 79 (SEE N85-11060 02-12) Transl. into ENGLISH from Kosm. Issled. (Moscow), v. 22
Astronomy and Astrophysics
Astronomy
Astronomical Spectroscopy, Comets, Forbidden Bands, Oxygen Spectra, Dissociation, Interferometry, Kohoutek Comet, Ultraviolet Spectroscopy, Water
Scientific paper
A comparison of calculations and measurements of the 2972 and 6300/64 A lines is spectra of comet Bradfield shows that the yield of singlet states of atomic oxygen during the dissociation of H2O in the 1216 A line and the neighboring spectral region is about 10 percent. For the dissociation of H2O the velocities of O(1S) and O(1D) are equal to 1.9 and 2.06 km/s; for the dissociation of CO2 they are equal to 4.7 and 2.9 km/s. The superposition of NH2 bands and the irregular character of comet west complicate the evaluation of this comet's gas release on the basis of 6300/64-A luminescence data. Interferometric measurements of comet Kohoutek are in accord with respect to all three parameters (the luminescence intensity of O/1D/6300 A and H-alpha 6563 A, the intensity distribution as a function of distance from the comet nucleus, and the
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