 Spectrophotometry of the Double QSO, 0957 + 561 by Beverley J. Wills and D. Wills

By Beverley J. Wills, D. Wills.

Published in The Astrophysical Journal.

Online text: adsabs.harvard.edu/pdf/1980ApJ...238....1W

Cited passages: Abstract, printed p. 1; section III, pp. 4-5; section IV, pp. 6-7; note added in proof, p. 7, and Figure 3, p. 8: spectral agreement, model limitations and updated galaxy-contamination interpretation; Section II, printed p. 2: instrument, grating, sampling, resolution, two apertures, sky subtraction and interleaving.