The spatial distribution of gaseous atomic sodium in the comae of comets: Evidence for direct nucleus and extended plasma sources

Icarus

Volumn 130, Issue 2, 1997, Pages 336-354

  Combi, Michael R ^a   DiSanti, Michael A ^b   Fink, Uwe ^c  

^a UNIVERSITY OF MICHIGAN   (United States)

^b CATHOLIC UNIVERSITY OF AMERICA   (United States)

^c UNIVERSITY OF ARIZONA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0031539690     PISSN: 00191035     EISSN: None     Source Type: Journal    
DOI: 10.1006/icar.1997.5832     Document Type: Article

References (60)

1. A'Hearn M. F. Spectrophotometry of Comet Kohoutek. Astron. J. 80:1975;861-875.
2. Allen C. W. Astrophysical Quantities. 1976;The Athlone Press, London.
3. Bappu M. K. V., Sivaraman K. R. Some characteristics of the solar wind inferred from the study of sodium emission from cometary nuclei. Solar Phys. 10:1969;496-501.
4. Barker E. S., Cochran A. L., Cochran W. D. High-dispersion spectroscopy of the sodium (Na) emission. Bull. Am. Astron. Soc. 29:1997;1050-1068.
5. Brown R. A. Optical line emission from Io. Exploration of the Planetary System. 1974;527-531.
6. Combi M. R., Delsemme A. H. Neutral cometary atmospheres. I. An average random walk model for photodissociation in comets. Astrophys. J. 237:1980a;633-640.
7. +. Astrophys. J. 238:1980b;381-387.
8. 2. Astrophys. J. 308:1986;472-484.
9. Combi M. R., Fink U. P/Halley: Effects of time-dependent production rates on spatial emission profiles. Astrophys. J. 409:1993;790-797.
10. Combi M. R., Smyth W. H. Monte Carlo particle trajectory models for neutral cometary gases: I. Models and equations. Astrophys. J. 327:1988;1026-1043.
11. Combi M. R., Bos B. J., Smyth W. H. The OH distribution in cometary atmospheres: A collisional Monte Carlo model for heavy species. Astrophys. J. 408:1983;668-677.
12. M. R. Combi, M. A. DiSanti, U. Fink, 1996, A Plasmagenic Source for Gaseous Sodium in Comets, Presented at, Asteroids, Comets, Meteors, 1996, July 1996, Versailles, France.
13. Combi M. R., Huang B., Cochran A., Fink U., Schulz R. Time-dependent analysis of 8 days of CN spatial profiles in Comet P/Halley. Astrophys. J. 435:1994;870-873.
14. Cremonese G. IAU Circular. 6631:1997a.
15. Cremonese G., Rauer H., Fitzsimmons A. IAU Circular. 6634:1997b.
16. Delsemme A. H. Physical interpretation of the brightness variation of Comet Kohoutek. Gary G. A. Comet Kohoutek. NASA. SP-355:1976;195-203.
17. +. Astrophys. J. 228:1979;330-337.
18. Delsemme A. H., Combi M. R. Neutral cometary atmospheres. IV. Brightness profiles in the inner coma of Comet Kohoutek 1973XII. Astrophys. J. 271:1983;388-397.
19. +. Icarus. 86:1990;152-171.
20. DiSanti M. A., Fink U., Schultz A. B. Sodium D emission in Comet P/Halley (1986 III). Bull. Am. Astron. Soc. 24:1992;999-1017.
21. 2. Astrophys. J. 364:1990;687-698.
22. 222. Astrophys. J. 383:1991;356-371.
23. Flynn B., Mendillo M., Baumgardner J. Observations and modeling of the jovian remote sodium emission. Icarus. 99:1992;115-130.
24. Gombosi T. I. Time-dependent numerical modeling of dust halo formation at comets. Astrophys. J. 311:1985;491-500.
25. Gombosi T. I., DeZeeuw D. L., Häberli R. M., Powell K. G. Three-dimensional multiscale MHD model of cometary plasma environments. J. Geophys. Res. 101:1996;15,233-15,253.
26. Goraya P. S., Rautela B. S., Sanwal B. B. Absolute spectrophotometry of comet Kohoutek 1973f during post-perihelion passage. Earth, Moon, Planets. 43:1986;77-91.
27. +. Bull. Am. Astron. Soc. 28:1996;1085-1103.
28. Hicks M., Fink U. Spectrophotometry and the development of emissions for Comet Hyakutake 1992 B2. Icarus. 127:1997;307-318.
29. Horanyi M., Mendis D. A. Trajectories of charged dust grains in the cometary environment. Astrophys. J. 294:1985;357-368.
30. Horanyi M., Mendis D. A. The effects of electrostatic charging on the dust distribution at Halley's comet. Astrophys. J. 307:1986;800-807.
31. Huebner W. F. Dust from cometary nuclei. Astron. Astrophys. 5:1970;286-297.
32. Huebner W. F., Keady J. J., Lyon S. P. Dust from cometary nuclei. Astron. Astrophys. 195:1992;1-289.
33. Jessberger E. K., Kissel J. Chemical properties of cometary dust and a note on carbon isotopes. Newburn R. Comets in the Post-Halley Era. 1991;1075-1092 Kluwer Academic, Dordrecht.
34. Jessberger E. K., Christoforidis A., Kissel J. Aspects of the major element composition of Halley's dust. Nature. 332:1988;691-695.
35. Johnson H. L. The absolute calibration of the Arizona photometry. Rev. Mexicana Astr. Astrofis. 5:1980;25-30.
36. Johnson R. E. Formation of Na-containing molecular ions at Io. Icarus. 111:1996;65-72.
37. Levin B. J. On the reported Na tails of comets. Icarus. 3:1964;497-498.
38. Meier R. R., Opal C. B., Keller H. U., Page T. L., Carruthers G. R. Hydrogen production rates from Lyman-α images of Comet Kohoutek (1973 XII). Astron. Astrophys. 52:1976;283-290.
39. Newall H. F. On the spectrum of the daylight comet 1910a. Mon. Not. R. Astron. Soc. 20:1910;459-461.
40. Oppenheimer M. Sodium D line emission in Comet West (1975n) and the sodium source in comets. Astrophys. J. 240:1980;923-928.
41. Plane J. M. C. The chemistry of meteoric metals in the Earth's upper atmosphere. Int. Rev. Phys. Chem. 10:1991;55-73.
42. Potter A. E., Morgan T. H. Discovery of sodium in the atmosphere of Mercury. Science. 229:1985a;651-653.
43. Potter A. E., Morgan T. H. Discovery of sodium and potassium in the atmosphere of the Moon. Science. 241:1985b;675-680.
44. Preston G. W. The spectrum of Comet Ikeya-Seki (1965f). Astrophys. J. 147:1967;718-742.
45. Rauer H., Arpigny C., Hutsemékers D., Manfroid J., Jorda L., Crovisier J. Comet Hale-Bopp's diffuse sodium tail. Bull. Am. Astron. Soc. 29:1997;1049-1067.
46. Schleicher D. G., Millis R. L., Thompson D. T., Birch P. V., Martin R. M., Tholen D. J., Piscitelli J. R., Lark N. L., Hammel H. B. Periodic variations in the activity of Comet P/Halley during the 1985/1986 apparition. Astron. J. 100:1990;896-912.
47. Schmidt H. U., Wegmann R., Huebner W. F., Boice D. C. Cometary gas and plasma flow with detailed chemistry. Comput. Phys. Commun. 49:1988;17-59.
48. Schneider N. M., Trauger J. T., Wilson J. K., Brown D. I., Evans R. W., Shemansky D. E. Molecular origin of Io's fast sodium. Science. 253:1991;1394-1397.
49. +. Icarus. 104:1993;185-196.
50. Smyth W. H., Combi M. R. A general model for Io's neutral gas clouds. II. Application to the sodium cloud. Astrophys. J. 328:1988;888-918.
51. Smyth W. H., Combi M. R. The sodium zenocorona. J. Geophys. Res. 96:1991;22,711-22,727.
52. Smyth W. H., Marconi M. L. Theoretical overview and modeling of the sodium and potassium atmospheres of Mercury. Astrophys. J. 441:1995;839-864.
53. 2. Astrophys. J. 440:1995;349-360.
54. Spinrad H., Miner E. D. Sodium velocity fields in Comet 1965f. Astrophys. J. 153:1968;355-366.
55. Verner D. A., Ferland G. J., Korista K. T., Yakovlev D. G. Atomic data for astrophysics. II. New analytic fits for photoionization cross sections of atoms and ions. Astrophys. J. 465:1996;487-498.
56. Wallace L. V., Miller F. D. Isophote configurations in model comets. Astron. J. 63:1958;213-219.
57. Wilson J. K., Schneider N. M. Io's fast sodium: Implications for molecular and atomic atmospheric escape. Icarus. 111:1994;31-44.
58. Wilson J. K., Mendillo M., Baumgardner J. On the production and kinematics of sodium atoms in the head of Comet Hale-Bopp. Bull. Am. Astron. Soc. 29:1997;1047-1065.
59. Woods T. N. Validation of the UARS solar ultraviolet irradiances: Comparison with the ATLAS 1 and 2 measurements. J. Geophys. Res. 101:1996;9541-9569.
60. Wyckoff S., Heyd R. S. Unidentified molecular ions in comets. Bull. Am. Astron. Soc. 29:1997;1048-1066.