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| Paper: |
FUSE Observations of a Sample of Soft X-ray Selected AGN |
| Volume: |
348, Astrophysics in the Far Ultraviolet: Five Years of Discovery with FUSE |
| Page: |
525 |
| Authors: |
Leighly, K.M.; Grupe, D.; Casebeer, D. |
| Abstract: |
We present analysis of FUSE spectra from a sample of low-redshift soft X-ray selected AGN to investigate the role of the spectral energy distribution (SED) on the flux and profile of the O VI line. Theoretical arguments on the nature of photoionized gas and resonance-line acceleration, as well as observational evidence from a few objects, indicate that there may be significant dependence. The soft X-ray selected sample has several advantages for O VI line studies: these AGN have little X-ray absorption and are thus unlikely to be intrinsically reddened, a uniform X-ray selection allows an investigation of the breadth of the SED distribution, a range of spectral classes is represented, and a large amount of multiwavelength information has been compiled already. Data for sixteen objects were drawn from the archive, and data from another fifteen were obtained as part of a Cycle 4 survey proposal. |
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