145 citations · 2.1k across the 42 of their papers we have counts for
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Probing the First Stars with Hydrogen and Helium Recombination Emission
Jason Tumlinson, Mark L. Giroux, J. Michael Shull
Unusual patterns of recombination emission from gas ionized by metal-free stars may distinguish early star-forming galaxies from their present-day counterparts. This pattern arises…
Metal Abundances in the Magellanic Stream
Brad K. Gibson, Mark L. Giroux, Steven V. Penton +3
We report on the first metallicity determination for gas in the Magellanic Stream, using archival HST GHRS data for the background targets Fairall 9, III Zw 2, and NGC 7469. For Fa…
FUSE Observations of the Low-Redshift Lyman-beta Forest
J. M. Shull, M. L. Giroux, S. V. Penton +10
We describe a moderate-resolution (20-25 km/s) FUSE study of the low-redshift intergalactic medium. We report on studies of 7 extragalactic sightlines and 12 Ly-beta absorbers that…