An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

The formation of second-generation stars in a → molecular cloud, as set off by the action of → massive stars. → sequential star formation; → radiation-driven implosion.

→ trigger; → star formation.

A transformation whose reciprocal is equal to its Hermitian conjugate.

→ unitary; → transformation.

The concept of star formation pertaining to a variety of systems (OB associations, giant H II regions, H II galaxies, massive star clusters, etc.) that are believed to have formed large numbers of stars in a very short time.

→ violent; → star formation.