TERMIUM Plus^®

Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 CONT

Since hydrogen is the main constituent of the gas, we often characterize a region of interstellar space according to whether its hydrogen is neutral-an "H I region" - or ionized-an "H II region". The gas in the H II regions glows by the process of fluorescence. The light emitted from these regions of ionized gas consists largely of emission lines, so they are also called "emission nebulae".  1, fiche 1, Anglais, - H%20II%20region

Fiche 1,  Justifications,  Français

Record number: 1, Textual support number: 1 CONT

La partie restante relativement petite du milieu diffus entoure les étoiles chaudes qui l'ionisent par leur rayonnement. On y rapporte les nébuleuses diffuses, les champs d'hydrogène, les radiosources métriques. A la différence des premières, ces zones s'appellent régions H II.  1, fiche 1, Français, - r%C3%A9gion%20H%20II

Fiche 1,  Justifications,  Espagnol