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Plasma astrophysics implication in discovery and interpretation of X-ray radiation from comets

Published online by Cambridge University Press:  08 June 2011

S. Ibadov
S. Ibadov*
Affiliation:
Sternberg Astronomical Institute, Moscow State University, Moscow, Russia Institute of Astrophysics, Tajik Academy of Sciences, Dushanbe, Tajikistan email: ibadovsu@yandex.ru
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Abstract

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Discovery of soft X-ray radiation from comet Hyakutake C/1996 B2 by space telescope ROSAT in March 1996 as well as establishing the regularity of the phenomenon for comets in general opened a new area of research for the plasma astrophysics. The first soft X-ray observations have been motivated by the results of a theoretical investigation on the efficiency of production of energetic photons, in the energy range 0.1-1 keV, by hot plasma clumps generated in dusty comets via high velocity collision with interplanetary dust at small heliocentric distances. Moreover, the soft X-ray luminosities measured significantly exceeded the value predicted. A short review of proposed theoretical models and mechanisms for explaining X-ray emission from comets as well as some prospects for the future X ray observations of comets are presented.

Keywords

plasma astrophysics generalcometscosmic dusthigh velocity collisionshigh-temperature plasmamulticharge ionsX-ray radiation
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S274: Advances in Plasma Astrophysics , September 2010 , pp. 76 - 79
Copyright
Copyright © International Astronomical Union 2011

References

Basov, N. G., Zakharov, S. D., Krokhin, O. N. et al. . 1971, Quantum Electronics USSR, 1, 4Google Scholar
Brandt, J. C., & Hodge, P. W. 1967, Solar System Astrophysics, Mir Publ. Comp., Moscow, 488Google Scholar
Brandt, J. C., Lisse, C. M., & Yi, Y. 1996, BAAS, 189, 19Google Scholar
Christian, D. J., Lisse, C. M., Dennerl, K., Marshal, F., Mushotsky, R. F., Petre, R., Snowden, S., Weaver, H., Stoozas, B., & Wolk, S. 2000, HEAD, 42.22, http://chandra.harvard.edu/press/00_releases/press_072700.htmlGoogle Scholar
Cravens, T. E. 1997, Geophys. Res. Lett., 24, 105Google Scholar
Dennerl, K., Englhauser, J., & Trumper, J. 1997, Science, 277, 1625Google Scholar
Dobrovolsky, O. V. 1966, Comets, Nauka, Moscow, 288Google Scholar
Donn, B., Mumma, M., Jackson, W., A'Hearn, M., & Harrington, R. (eds.) 1976, The Study of Comets, NASA SP-393, Proc. IAU Colloquium No. 25, 1083Google Scholar
Greenstein, J. L. 1958, ApJ, 128, 106Google Scholar
Greenstein, J. L. & Arpigny, C. 1962, ApJ, 135, 892Google Scholar
Grun, E., Zook, H. A., Fechtig, H., & Giese, R. H. 1985, Icarus, 62, 244Google Scholar
Ibadov, S. 1980, Comet. Circ. USSR, 266, 3Google Scholar
Ibadov, S. 1983, in: Cometary Exploration, Proc. Int. Conf., Budapest, Hungarian Acad. Sci. Publ., 227Google Scholar
Ibadov, S. 1985, in: Properties and Interactions of Interplanetary Dust, Proc. IAU Colloquium No. 85, Reidel Publishing Company, Dordrecht, 365CrossRefGoogle Scholar
Ibadov, S. 1986, in: ESA SP-250, Proc. 20th ESLAB Symposium on the Exploration of Halley's Comet, 377Google Scholar
Ibadov, S. 1987, in: ESA SP-278, Proc. Symposium on the Diversity and Similarity of Comets, 655Google Scholar
Ibadov, S. 1989, in: NASA CP-3036, Proc. IAU Symposium No. 135 on Interstellar Dust, 49Google Scholar
Ibadov, S. 1990, Icarus, 86, 283CrossRefGoogle Scholar
Ibadov, S. 1996a, Adv. Sp. Res., 17:12, 93CrossRefGoogle Scholar
Ibadov, S. 1996b, Physical Processes in Comets and Related Objects, Cosmosinform Publ. Comp., Moscow, 181Google Scholar
Ibadov, S. 1998, Proc. First XMM Workshop on Science with XMM, http://astro.estec.esa.nl/XMM/news/ws1.top.html, http://xmm.esac.esa.int/external/xmm_science/workshops/1st_workshopGoogle Scholar
Ibadov, S. 2000, Astron. Astrophys. Transac., 18:6, 799Google Scholar
Ibadov, S. 2001, in: Astrophysical Sources of High Energy Particles and Radiation, Kluwer Academic Publisher, Dordrecht, 245CrossRefGoogle Scholar
Ibadov, S. & Dennerl, K. 2000a, IAU Colloquium 181/COSPAR Colloquium 11 Abstracts, 71Google Scholar
Ibadov, S. & Dennerl, K. 2000b, JENAM-2000: 9th European and 5th Euro-Asian Astron. Soc. Conf. Abstracts, 206Google Scholar
Ip, W. H. & Chow, V. W. 1997, Icarus, 130, 217Google Scholar
Lebedinets, V. N. 1984, Astron. Vestnik, 18, 35Google Scholar
Lisse, C. M., Dennerl, K., Englhauser, J., Harden, M., Marshall, F. E., Mumma, M. J., Petre, R., Pye, J. P., Ricketts, M. J., Trumper, J. & West, R.G. 1996, Science, 274, 205CrossRefGoogle Scholar
Reinhard, R. 1986, Nature, 321, 313Google Scholar
Sagdeev, R. Z., Blamont, J., Galeev, A. A., Moroz, V. I., Shapiro, V. D., Shevchenko, V. I., & Szego, K. 1986, Nature, 321, 259Google Scholar
Uchida, M., Morikawa, M., Kubotani, H., & Mouri, H. 1998, ApJ, 498, 863Google Scholar
Utterback, N. G. & Kissel, J. 1990, AJ, 100, 1315CrossRefGoogle Scholar