An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian
فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک
M. Heydari-Malayeri - Paris Observatory
HomepageNumber of Results: 2 Search : optically thick
optically thick nurâné setabr, nurikâné ~ Fr.: optiquement épais The qualifier of a medium in which the → optical depth is large, significantly larger than 1. |
optically thick wind bâd-e nurâné setabr Fr.: vent optiquement épais A wind with the → sonic point located at large optical depth for continuum. In particular, → Wolf-Rayet star winds are → optically thick. However, the outer parts of W-R winds are → optically thin for continuum, and in those regions the matter flow is driven by the same mechanism as in the winds of OB stars. |
