Production of CS and S in Comet Bradfield /1979 X/
Abstract
High and low resolution ultraviolet spectra of carbon monosulfide (CS) in Comet Bradfield (1979 X) were obtained with the IUE satellite. The high resolution rotational profile of the (0, 0) band at 257.5 nm can be fitted with a theoretical profile derived assuming a Boltzmann temperature of 70 K. Spatial plots of the low resolution data for both S and CS show that these emissions are concentrated toward the cometary nucleus. The results that have been obtained are consistent with a Haser model for CS and S where the parent molecule is CS2. A very rapid variation of CS brightness with heliocentric distance is found.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- March 1982
- Bibcode:
- 1982A&A...107..385J
- Keywords:
-
- Carbon Compounds;
- Comets;
- Molecular Spectra;
- Reaction Products;
- Sulfur;
- Ultraviolet Astronomy;
- Brightness Distribution;
- Carbon Disulfide;
- Iue;
- Molecular Rotation;
- Spectral Resolution;
- COMETS;
- BRADFIELD (1979X) COMET;
- PRODUCTION RATES;
- CARBON MONOSULFIDE;
- ULTRAVIOLET;
- SPECTRA;
- SULFUR;
- IUE;
- INTERNATIONAL ULTRAVIOLET EXPLORER;
- EMISSIONS;
- COMET NUCLEI;
- MODELS;
- SPECTROSCOPY;
- BRIGHTNESS;
- WAVELENGTHS;
- OBSERVATIONS;
- FLUX;
- DISTANCE;
- ANALYSIS;
- PHOTODISSOCIATION;
- PARENT MOLECULES;
- Astrophysics; Comets