semi-forbidden line Comparison Table

Astronomy View all facts Glossary Help

abstraction > mathematical concept > number > quantity > radiation measurement > spectral feature > spectral line > emission line > semi-forbidden line

Next emission line: coronal green line Up: emission line Previous emission line: radio recombination line

semi-forbidden line comparison table

Subject has definition is a kind of

emission line Bright lines produced in a spectrum by a luminous source, such as a star or a bright nebula. spectral line

semi-forbidden line Spectral lines from "semiforbidden" transitions, i.e., those whose transition probabilities are perhaps 1 in 10⁶ instead of about 1 in 10⁹ for forbidden transitions. One bracket - e.g., [C III] - is used to indicate semiforbidden lines. emission line

Subject	has definition	is a kind of
emission line	Bright lines produced in a spectrum by a luminous source, such as a star or a bright nebula.	spectral line
semi-forbidden line	Spectral lines from "semiforbidden" transitions, i.e., those whose transition probabilities are perhaps 1 in 10⁶ instead of about 1 in 10⁹ for forbidden transitions. One bracket - e.g., [C III] - is used to indicate semiforbidden lines.	emission line

Next emission line: coronal green line Up: emission line Previous emission line: radio recombination line