H II condensation Comparison Table

Astronomy View all facts Glossary Help

physical object > natural object > celestial body > nebula > H II region > H II condensation

Next H II region: compact H II region Up: H II region Previous H II region: gaseous nebula

H II condensation comparison table

Subject has definition is a kind of

H II region Region of ionized hydrogen in interstellar space. H II regions occur near stars with high luminosities and high surface temperatures. The kinetic temperature of H II regions is about 10,000-20,000 K, and the density is about 10 atoms per cm³. Ionized hydrogen, of course, having no electron, does not produce spectral lines; however, occasionally a free electron will be captured by a free proton and the resulting radiation can be studied optically (see also radio recombination lines). nebula

H II condensation A high-density H II region. H II region

Subject	has definition	is a kind of
H II region	Region of ionized hydrogen in interstellar space. H II regions occur near stars with high luminosities and high surface temperatures. The kinetic temperature of H II regions is about 10,000-20,000 K, and the density is about 10 atoms per cm³. Ionized hydrogen, of course, having no electron, does not produce spectral lines; however, occasionally a free electron will be captured by a free proton and the resulting radiation can be studied optically (see also radio recombination lines).	nebula
H II condensation	A high-density H II region.	H II region

Next H II region: compact H II region Up: H II region Previous H II region: gaseous nebula