scholarly journals On-line chemical composition analyzer development. Status report, February 1, 1993--April 30, 1993

1993 ◽  
Author(s):  
A.A. Garrison

1992 ◽  
Author(s):  
M.J. Roberts ◽  
A.A. Garrison ◽  
E.C. Muly ◽  
C.F. Moore


1992 ◽  
Author(s):  
M.J. Roberts ◽  
A.A. Garrison ◽  
E.C. Muly ◽  
C.F. Moore








1956 ◽  
Author(s):  
R. E. Blanco ◽  
D. E. Ferguson


1956 ◽  
Author(s):  
R. E. Blanco ◽  
D. E. Ferguson


1993 ◽  
Author(s):  
B.C. Simpson ◽  
T.E. Jones ◽  
K.H. Pool


2018 ◽  
Vol 27 (1) ◽  
pp. 95-97
Author(s):  
Simon Kreuzer ◽  
Andreas Irrgang ◽  
Ulrich Heber

Abstract We present a status report of our spectroscopic analysis of subdwarf binaries consisting of a subdwarf and a F/G/K-type main-sequence companion. These systems selected from SDSS photometry show significant excess in the (infra-)red which can not be explained by interstellar reddening. Inspection of SDSS spectra revealed that most of them are composite spectrum sdB binaries. Once their spectra are disentangled, a detailed spectral analysis can be carried out. It reveals Teff, log g and the metal abundance of each individual star. The cool companion is of particular interest, because its spectrum reveals the original chemical composition of the binary.



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