We present Far Ultraviolet Spectroscopic Explorer (FUSE) observations of interstellar molecular hydrogen (H2) in two Galactic high-velocity clouds (HVCs). Molecular hydrogen absorption is detected in the Magellanic Stream (abundance ∼ 0.3 solar) toward the Seyfert galaxy Fairall 9 in the lowest three rotational states (J = 0− 2) at vLSR = +190 kms , yielding a total H2 column density of log N(H...

Despite the significant advantages of capillary isoelectric focusing over gel isoelectric focusing, widespread acceptance of the technique as a replacement for gel isoelectric focusing has not occurred. Several factors contribute to capillary isoelectric focusing’s slower-than-expected adoption; perhaps the most important are the performance and procedural difficulties introduced when capillary...

In the current stage over 85% of world energy demand is supplied by fossil fuels. Coal-fired plants discharged roughly 40% of the total CO2 are the main contributors in CO2 emissions (Kim & Kim, 2004; Yang et al., 2008). Environmental issues caused by exhaust green house gases (GHG) and toxics have become global problems. Through the past studies of five decades, increased GHG levels in atmosph...

We review observations of molecular absorption line systems at high redshift toward red quasars and gravitational lenses. The steeply falling power law column density distribution function of QSO absorption line systems implies that for every 1000 Ly α forest lines from absorbers with hydrogen column density, NH < 10 15 cm there will be only one system with NH ≥ 10 cm (Hu et al. 1995). Although...

We have performed a multi-species hydrodynamical simulation of the formation and evolution of Ly clouds in a at CDM dominated universe with an external ux of ionizing radiation. We solve the fully coupled non-equilibrium rate equations for the following species: H, H + , H , H 2 , H + 2 , He, He + , He ++ , and e . The statistical properties of the distribution and evolution of both hydrogen an...

The rst time simultaneous measurements of sodium column density and the absolute ux from a sodium laser guide star, created by a monochromatic 3 W cw laser, tuned to the peak of the sodium D2 hyper ne structure, were conducted at the MMT and CFA 60 inch telescope in 1997. The results show that linearly and circularly polarized laser returns are proportional to the simultaneous sodium column den...