... There is often dust associated with ionized regions. ... in the molecular cloud along with the nebular emission lines from the ionized region ... apparently from the photo-dissociation region just outside the main ionized nebula ...

... Thus at a critical mass the H II region just ionizes its cloud;clouds of higher mass will have a larger flux per unit mass and ...

... Publications with keywords: HII region - ionization region . Publications with words: HII region - ionization region . ... Publications with words: HII region - ionization region . See also: . NGC 3603: An Active Star Cluster . ...

... in the light of an emission line, in this case, the light from H-alpha from regions of ionized hydrogen known as H II regions ...

... A two-zone photoionized H II region has been assumed; the electron temperature for the high-ionization region has been obtained from the [O III ] 4363/( 4959+5007) ratio using a five-level atom model (Izotov & Thuan [ 1999 ]) and for the low-ionization ...

... Young massive star formation regions -Ionized stellar outflows -Diffuse ionized ... temperature distributions across extended ionized regions, and across the galactic ... PDRs) via Carbon RRLs in the transition regions between ionized and neutral gas ...

... Properties of Dust Grains in Planetary Nebulae - I. The Ionized Region of NGC 6445 . ... A model of the ionized region is constructed, using the photo-ionization code CLOUDY ...

... with a simple morphology (circular ionized regions surrounded by dust emission rings ... of the luminous IR point sources observed at the borders of the ionized regions ...

... Its inner 30,000 light-years are shown here in an image processed to fully reveal the reddish glow of ionized hydrogen regions ( HII regions ) sprawling along loose spiral arms that wind toward the galaxy's core. ...

... Phenomena typical for polar cap are, for example . Polar rain . F-region ionization patches . Sun-aligned polar cap arcs . Polar wind ion upflow . ...