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Balloon-borne ultraviolet stellar spectrograph. I - Instrumentation and observation. II - Highlights of first observational resultsA dual star-tracking system and a system including a telescope, an echelle spectrograph, and a SEC vidicon are the chief components of the Balloon-borne Ultraviolet Stellar Spectrograph (BUSS), which has flown four successful missions. The BUSS missions have yielded 81 spectra for 56 stars, recorded with a resolution of 0.1 A in the wavelength range from 2200 to 3400 A. BUSS observations include: profiles of Mg II lines indicating considerable mass flow in early-type supergiants; Mg II features suggesting a cool expanding outer shell above a hotter chromosphere; emission features in Zeta Tau (a shell star) indicating infalling material; and emission features of the Be star Phi Per suggesting mass outflow.
Document ID
19790053786
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1086/157108
Authors
Kondo, Y. (NASA Goddard Space Flight Center Greenbelt, Md., United States)
De Jager, C. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Hoekstra, R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Van Der Hucht, K. A. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Kamperman, T. M. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Lamers, H. J. G. L. M. (Space Research Astronomical Observatory Utrecht, Netherlands)
Modisette, J. L. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Morgan, T. H. (Houston Baptist University Houston, Tex., United States)
Date Acquired
August 9, 2013
Publication Date
June 1, 1979
Publication Information
Publication: Astrophysical Journal
Subject Category
Astrophysics
Accession Number
79A37799
Distribution Limits
Public
Copyright
Other

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