The U.S. survey for faint blue objectsA spectrophotometric study of the blue and UV-excess starlike objects in the U.S. survey (Usher, 1981) has been conducted. Observations were obtained with a resolution of about 20 A over the 3500-7000-A wavelength range. Considered within the sample are 42 DA white dwarfs, 4 DB/DO white dwarfs, 13 subdwarf B stars, 12 subdwarf O stars, and 13 horizontal branch stars. The sample is analyzed using numerical convolution photometry.
Document ID
19890030199
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Mitchell, K. J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Howell, S. B. (NASA Goddard Space Flight Center; ST Systems Corp. Greenbelt, MD, United States)
Usher, P. D. (Pennsylvania State University University Park, United States)