The absolute energy flux envelopes of B type stars.Absolute energy flux envelopes covering the region of 1100 to 6000 A for main-sequence stars of types B3, B7 and A0 derived from published, ground-based observations and from spectrum scans with OAO-II are presented. These flux envelopes are compared with the predicted flux envelopes from lightly line-blanketed model atmospheres. The line blanketing at wavelengths shorter than 3000 A is severe, about one-half the predicted light being observed at 1600 A. These results demonstrate that a model which represents well the observed visible spectrum of a star may fail seriously for representing the ultraviolet spectrum.
Document ID
19720048331
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Underhill, A. B. (NASA Goddard Space Flight Center Greenbelt, Md., United States)