... polarized flux, obtained at the 3.8-m UK Infrared Telescope (UKIRT), is shown in Fig ... observations (such as coronographic 8-m data) and/or spectropolarimetry over the ...
... We assume the stars to be massive ( M = 8M ), with a luminosity of L = 2200 L , and a surface temperature of T = 20 000 K. The emerging radiation is assumed to have already formed cavities free of dust, and all remnants like disks that may have formed ...
... on the new optical data with the dust emissivity derived from ISO-SWS spectra of AGB stars in the range between 8-30 m. The dust emissivity derived from TY Dra, an evolved dust forming star, can excellently be reproduced by the models, sugessting that the ...
... B1Ib in January-February 2004 using the 6-m telescope of the Special Astrophysical Observatory (Russia) and the 1.8-m telescope of the Bohyunsan Optical Astronomy Observatory (South Korea). 47 spectra with high time resolution (4-10 min), signal-to- noise ...
... based on the new optical data with the dust emissivity derived from ISO-SWS spectra of AGB stars in the range between 8{30 m. The emission spectrum of TY Dra, an evolved dust-forming star, can excellently be reproduced by the models, suggesting that the ...
... At the same time, the position of Aa1 in the diagram calculated for a high-mass main-sequence star with M = 30 M (Fig. 8, bottom) accurately corresponds to the pulsation-instability strip for this star. ...
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Ссылки http://www.astro.spbu.ru/staff/afk/Papers/2006/delOriE.pdf -- 1677.9 Кб -- 19.11.2010 Похожие документы
... Н 750 ММ 10 Й Д Е -7 Л 3 И ? Д ? 70Б 28Б 2Б +4.8m VЕ V B-V -26.7m -26.8m +0.65m 2Ю Н МММ ? МММ 1 З 106 НК З НМ7 НМ У Л 3 ?К 0.1 ? 100 0.1 ? 25 НМ ? ...