322 citations · 711 across the 5 of their papers we have counts for
6 papers
An Astronomer's View of Climate Change
Donald C. Morton
This paper describes some of the astronomical effects that could be important for understanding the ice ages, historic climate changes and the recent temperature increase. These in…
High-Resolution Observations of Interstellar Ca I Absorption -- Implications for Depletions and Electron Densities in Diffuse Clouds
Daniel E. Welty, L. M. Hobbs, Donald C. Morton
We present high-resolution (FWHM ~ 0.3-1.5 km/s) spectra of interstellar Ca I absorption toward 30 Galactic stars. Comparisons of the column densities of Ca I, Ca II, K I, and othe…
A FUSE Survey of Interstellar Molecular Hydrogen in Translucent Clouds
Brian L. Rachford, Theodore P. Snow, Jason Tumlinson +12
We report the first ensemble results from the FUSE survey of molecular hydrogen in lines of sight with A_V 1 mag. We have developed techniques for fitting computed profil…
Resolving the Structure of Ionized Helium in the Intergalactic Medium with the Far Ultraviolet Spectroscopic Explorer
G. A. Kriss, J. M. Shull, W. Oegerle +16
The neutral hydrogen and the ionized helium absorption in the spectra of quasars are unique probes of structure in the early universe. We present Far-Ultraviolet Spectroscopic Expl…
Far-UV FUSE spectroscopy of the OVI resonance doublet in Sand2 (WO)
Paul A. Crowther, A. W. Fullerton, D. J. Hillier +10
We present Far-Ultraviolet Spectroscopic Explorer (FUSE) spectroscopy of Sand 2, a LMC WO-type Wolf-Rayet star, revealing the OVI resonance P Cygni doublet at 1032-38A. These data…
The Diffuse Interstellar Clouds toward 23 Orionis
D. E. Welty, L. M. Hobbs, J. T. Lauroesch +3
Spectra obtained with the Hubble Space Telescope GHRS are combined with high-resolution optical spectra and UV spectra from Copernicus to study the abundances and physical conditio…