Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ap%26ss.108..161g&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 108, no. 1, Jan. 1985, p. 161-173.
Astronomy and Astrophysics
Astrophysics
5
B Stars, Spectral Energy Distribution, Stellar Spectrophotometry, Balmer Series, Continuous Spectra, Interstellar Extinction, Stellar Temperature
Scientific paper
The continuum energy distribution data of seven Be and five normal B stars are presented in the wavelength range 320-800 nm. Empirical effective temperatures of these stars are derived by comparing the observed continuum energy distributions with the computed energy distributions given by Kurucz (1979). The effective temperatures of all the Be stars except KX And are in fair agreement with those of normal B stars. The Be stars KY And, EW Lac, and LQ And show normal continuum energy distributions over the whole observed wavelength range. The Be stars ES Vul and 6 Cyg show moderate near-infrared excess emission longward of 600 nm. Omicron And shows Balmer jump slightly in absorption, and 6 Cyg shows it slightly in emission. The variable nature of the Be stars is discussed. The Be star KX And shows a peculiar type of continuum energy distribution which is discussed in relation to its binary nature. No excess or deficiency in the mean flux of normal B stars is detected.
Goraya P. S.
Singh Mahender
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