An Etymological Dictionary of Astronomy and Astrophysics
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A → Be star with → forbidden lines in emission in its spectrum. B[e] stars show large → infrared excess due to → circumstellar dust emission. See also → supergiant B[e] star, → pre-main sequence B[e] star, → compact planetary nebula B[e] star, → symbiotic B[e] star, and → unclassified B[e] star.

B, referring to the spectral type; e for emission lines, brackets for distinction from Be; → star.

A star whose spectrum shows striking similarities to → B[e] stars and is evolving into a → planetary nebula (→ preplanetary nebula).

→ compact; → planetary; → nebula; → B[e] star.

A → Herbig AeBe star displaying → forbidden emission lines in its spectrum.

→ pre-; → main; → sequence; → B[e] star.

A highly luminous → B[e] star with a luminosity greater than 10⁴L_sun. A number of such objects exist in the → Magellanic Clouds, e.g. LMC R126, R66, SMC R4, and R50. A likely example in our Galaxy is MWC 300.

→ supergiant; → B[e] star.

A → B[e] star whose spectrum shows the presence of a cool component characterized mainly by → TiO bands.

→ symbiotic; → B[e] star.

A temporary designation for a → B[e] star that cannot be placed in any of the four known classes.

→ classification; → B[e] star.