3 papers
astro-ph2004
The Baryon Content of the Local Intergalactic Medium
John T. Stocke, J. Michael Shull, Steven V. Penton
We describe our surveys of low column density Lyman-alpha absorbers [N(HI) = 10^(12.5-16.0) cm^-2], which show that the warm photoionized IGM contains 30% of all baryons at z < 0.1…
astro-ph2000
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…
astro-ph1995
Intergalactic Hydrogen Clouds at Low-Redshift: Connections To Voids And Dwarf Galaxies
J. Michael Shull, John T. Stocke, Steve Penton
We provide new post-COSTAR data on one sightline (Mrk 421) and updated data from another (I Zw 1) from our Hubble Space Telescope (HST) survey of intergalactic Lyman-alpha clouds l…