Properties of R136a as derived from its optical light distribution
| العنوان: | Properties of R136a as derived from its optical light distribution |
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| المؤلفون: | Y.-H. Chu, M. G. Wolfire, J. P. Cassinelli |
| المصدر: | The Astrophysical Journal. 283:560 |
| بيانات النشر: | American Astronomical Society, 1984. |
| سنة النشر: | 1984 |
| مصطلحات موضوعية: | Physics, Brightness, Stars, Solar mass, Nebula, Star cluster, Space and Planetary Science, Stellar mass loss, Continuum (design consultancy), Astronomy, Astronomy and Astrophysics, Light emission, Astrophysics |
| الوصف: | Short exposure 4 m prime focus plates taken with interference filters centered on blue continuum 4765 A, He II 4686 line, red continuum 6485 A, and H-alpha line have been used to study the light distribution within R136a. R136a contains a bright component and several fainter components superposed on an extended background. The brightest component, unresolved under sub-arcsec seeing condition, contributes about 37 percent of the total light from a 3 in. diameter aperture. Combining the optical and UV information, it is found that this brightest component R136a1 may be a single star with a mass of approximately 750 solar masses with a brightness of six HD 93129A or 20 O3 V stars, or it could be a cluster of such stars. In either case, R136a1 supplies no more than one-half of the ionization of the 30 Doradus nebula. |
| تدمد: | 1538-4357 0004-637X |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::6c576ec37e0ddf8c2d886c73580b083d https://doi.org/10.1086/162340 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........6c576ec37e0ddf8c2d886c73580b083d |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15384357 0004637X |
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