High-Velocity Gas Near the Gum Nebula

Dust in and near the Orion Nebula

Although the blister model for the Orion Nebula is widely accepted, an alternative model, where the optical appearance of the nebula is primarily determined by self-extinction, continues to be considered by some and has never specifically been disproven. I summarize the characteristics of the two models and show that the evidence falls overwhelmingly against the self-extinction model and in fav...

consequence analysis of the leakage, ignition and explosion during high pressure sour gas injection process to the oil reservoir

there is no doubt that human being needs to become integrated with industry and industry needs to be progressed, daily. on the other hand, serious events in industrial units specially in oil industries has been shown that such damages and events are industry related ones. the consequence of such events and damages which resulted in chemical and poisoned explosions and loss of life and property ...

High velocity structures in , and the X - ray emission from the LBV nebula around η Carinae

The Luminous Blue Variable star η Carinae is one of the most massive stars known. It underwent a giant eruption in 1843 in which the Homunculus nebula was created. ROSAT and ASCA data indicate the existence of a hard and a soft X-ray component which appear to be spatially distinct: a softer diffuse shell of the nebula around η Carinae and a harder point-like source centered on the star η Car. A...

High-velocity O VI in and near the Milky Way

The Far Ultraviolet Spectroscopic Explorer (FUSE) has observed over three hundred fifty sightlines to extragalactic targets. About one hundred fifty of these are of sufficient quality to measure O VI absorption in and near the Milky Way. High-velocity O VI absorption is detected in about 80% of the sightlines, with the detection rate going up for sightlines with higher signal-tonoise ratios. O ...

Gas gangrene of the high-velocity missile wound.