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Simultaneous Observations of Variability at All Atmospheric Levels of V824 Arae (HD 155555)
Neff, James E.; Lim, Jeremy; Dempsey, Robert C.
We conducted a multiwavelength campaign observing V824 Ara (HD 155555, G5 IV+K0 IV-V) continuously throughout one complete orbital cycle (~1.7 days) in early May of 1996. At the core of this campaign were observations using the GHRS on the Hubble Space Telescope (HST). In all, about 48,000 spectra, many in rapid readout mode, were obtained with th…
Speckle Observations of Composite Star Candidates
Bord, D. J.; Sowell, J. R.; Hart, D. L. +1 more
Speckle observations are reported for 53 stars with composite spectra selected from the Michigan Spectral Catalogue in an effort to improve the orbits of known binaries and to discover new binaries among this class of objects. The data were obtained using the 1.3 and 2.4 m telescopes at the Michigan-Dartmouth-MIT Observatory and the Georgia Tech R…
Goddard High Resolution Spectrograph Observations of NGC 4151
Savage, B. D.; Ebbets, D. C.; Carpenter, K. G. +15 more
Goddard High Resolution Spectrograph observations of the nucleus of the bright, nearby Seyfert galaxy NGC 4151 are presented andbriefly described.