241 citations · 978 across the 15 of their papers we have counts for
3 papers · 1 filter
Intrinsic Absorption Properties in Active Galaxies Observed with the Far Ultraviolet Spectroscopic Explorer
Jay P. Dunn, D. Michael Crenshaw, S. B. Kraemer +1
In a continuing survey of active galactic nuclei observed by the Far Ultraviolet Spectroscopic Explorer, we provide a deeper analysis of intrinsic absorption features found in 35 o…
Long-Term Variability in the Optical Spectrum of the Seyfert Galaxy NGC 2992
M. L. Trippe, D. M. Crenshaw, R. Deo +1
New spectra of NGC 2992 from the Cerro Tololo Inter-American Observatory show that this nearby AGN has changed its type classification to a Seyfert 2 in 2006. It was originally cla…
Joint H-alpha and X-Ray Observations of Massive X-Ray Binaries. III. The Be X-ray Binaries HDE 245770 = A 0535+26 and X Persei
E. D. Grundstrom, T. S. Boyajian, C. Finch +9
We present results from an H-alpha monitoring campaign of the Be X-ray binary systems HDE 245770 = A 0535+26 and X Per. We use the H-alpha equivalent widths together with adopted v…