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FUV and optical spectrophotometry of X-ray selected Seyferts

Published online by Cambridge University Press:  19 July 2016

J. T. Clarke ,
S. Bowyer  and
M. Grewing
J. T. Clarke
Affiliation:
Code TA02 Space Telescope Project, NASA Marshall Space Flight Center, Huntsville, AL 35812 USA
S. Bowyer
Affiliation:
Code TA02 Space Telescope Project, NASA Marshall Space Flight Center, Huntsville, AL 35812 USA
M. Grewing
Affiliation:
Code TA02 Space Telescope Project, NASA Marshall Space Flight Center, Huntsville, AL 35812 USA

Abstract

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Nearly simultaneous FUV and optical spectrophotometry of X-ray selected Seyfert galaxies has revealed an average Ly α/H β ratio of 22, a positive correlation between the ratio Ly α/H β and the width of the lines, and additional Ly α emission in the wings of one source which is not matched by emission in the Balmer line wings. However, we find no distinguishing features in the continuum emission from these X-ray selected objects compared with other samples. If the correlation between Ly α/H β and the width of the lines is found to apply to larger samples of Seyferts, it may be that our objects appear Ly α bright because they are also broad-lined compared with other samples.

Type
III. Spectral Line Studies
Information
Symposium - International Astronomical Union , Volume 119: Quasars , 1986 , pp. 347 - 348
Copyright
Copyright © Reidel 1986 

References

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