TERMIUM Plus^®

Record 1,  Textual support,  English

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, record 1, English, - H%20II%20region

Record 1,  Textual support,  French

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, record 1, French, - r%C3%A9gion%20H%20II

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 OBS

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 regions"(...). The cold gases in HI regions are invisible on direct photographs, but they can be observed by their radio emission(...). Also, some of the gases in H I regions produce absorption lines on stellar spectra(...)  1, record 2, English, - H%20I%20region

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 OBS

Dans toutes ces régions, l'hydrogène, l'élément le plus abondant, est à l'état neutre, c'est-à-dire à l'état H I. C'est pourquoi les zones appropriées sont dites régions H I (...). Les régions H I sont les zones les plus froides du milieu interstellaire.  1, record 2, French, - r%C3%A9gion%20H%20I

Record 2,  Textual support,  Spanish