Definition of Decretion. Meaning of Decretion. Synonyms of Decretion

Here you will find one or more explanations in English for the word Decretion. Also in the bottom left of the page several parts of wikipedia pages related to the word Decretion and, of course, Decretion synonyms and on the right images related to the word Decretion.

Definition of Decretion

Decretion
Decretion De*cre"tion, n. [From L. decrescere, decretum. See Decrease.] A decrease. [Obs.] --Pearson.

Meaning of Decretion from wikipedia

- Be stars are a heterogeneous set of stars with B spectral types and emission lines. A narrower definition, sometimes referred to as classical Be stars...
- The emissions and brightness variations are apparently caused by this "decretion disk". The spectrum of this m****ive star matches a stellar classification...
- C****iopeiae variables are understood to be hot stars which have equatorial decretion disks which periodically disappear and reform, or possibly just change...
- pressure. Cir****stellar disks like this are sometimes referred to as "decretion disks", because they consist of material being thrown off the star (as...
- the south are measured in negative degrees. See also right ascension. decretion disk A cir****stellar disc formed from gas ejected from a central star...
- suffix indicates it is a rapidly rotating Be star with a cir****stellar decretion disk of heated gas. The radius of the emitting disk is about 0.20±0.06 AU...
- emissions in its hydrogen spectral lines. This emission can be modelled by a decretion disk of gas that has been ejected from the star by its rapid rotation...
- thought to originate from the secondary star. The line profiles suggest a decretion disc around the star, produced by its rapid rotation, which would make...
- in its spectrum. It is a rapidly rotating blue-white star with a hot decretion disk surrounding it. It is estimated to be 50 million years old, with...
- estimated as 350 km/s. It is surrounded by a symmetric cir****stellar decretion disk of material that is being heated by the star, which in turn is inserting...