High-velocity gas components towards 4 Lac⋆

Measurements of Laminar Flame Velocity for Components of Natural Gas

Intermediate - velocity gas observed towards the Shajn 147 SNR

We present high-resolution spectra (R ∼ 3 km s −1) of the interstellar Na  and Ca  interstellar absorption lines observed towards 3 early-type stars with distances of 360 to 1380pc along the line-of-sight towards the 800pc distant Shajn 147 (S147) Supernova Remnant (SNR). These data are supplemented with far-UV (912-1180Å) aborption spectra of HD 36 665 and HD 37 318 recorded with the NASA F...

Origin of Warm High-Velocity Dense Gas in ULIRGs

Possible origins of the molecular absorption discovered in some ULIRGs are investigated, based on a 3-D hydrodynamic model of star-forming interstellar gas in a galactic central region. The blue-shifted, warm (∼ 200−300 K), dense (> 10 cm) molecular gas suggested by CO absorption in IRAS 08752+3915 could be caused by the innermost region of the inhomogeneous inter-stellar medium (ISM) around a ...

Gas gangrene of the high-velocity missile wound.

High velocity gas and dust evolution in Chamaeleon clouds

We report on GHRS observations which reveal conspicuous differences in the absorption spectra of two nearby stars, close to each other. The star HD102065 lies behind a cloud in Chamaeleon with unusually strong mid–IR emission, indicating a large abundance of very small dust particles. Along this line of sight, 5% of the gas (about 6 1019 cm−2) is at large velocities (up to -50 km s−1) compared ...