Abstract
Photometric data between 0.4 and 20 μ are discussed for K stars. Evidence of IR excess in the 11 μ region has been found for five stars in a sample of fourteen. The hypothesis of the presence of circumstellar matter in K stars seems to be confirmed.
Abstract
Sono stati analizzati dati fotometrici per stelle K tra 0.4 e 20 μ. Si è riscontrata la presenza di un eccesso infrarosso nella regione intorno a 11 μ per 5 stelle su 14. Sembra così trovare conferma la ipotesi della presenza di materia circumstellare anche in stelle K.
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References
Boesgaard, A. and Hagen, W.: 1979,Astrophys. J. 231, 138.
Gillett, F., Merril, M. K. and Stein, W.: 1971,Astrophys. J. 164, 83.
Hoffleit, D.: 1964,Catalogue of Bright Stars, Yale Observatory, New Haven, Connecticut.
Johnson, H.: 1966,Ann. Rev. Astron. Astrophys. 4, 193.
Johnson, H. and Mitchell, R.: 1966,Lunar Planetary Laboratory Pub. 63, 99.
Neugebauer, G. and Leighton, R. B.: 1969,Two-Micron Sky Survey, NASA-SP-3047.
Price, S. D. and Walker, R. G.: 1976,The AFGL Four Color Infrared Sky Survey Catalog of Observations at 4.2, 11, 19.8, 27.4, AFGL-TR-76-0208.
Simon, T.: 1976,Astron. J. 81, 764.
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Gaudenzi, S., Rossi, C. The evidence of circumstellar shells for K type stars. Astrophys Space Sci 70, 401–406 (1980). https://doi.org/10.1007/BF00639564
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DOI: https://doi.org/10.1007/BF00639564