The giant galactic H II region NGC 3603 - Optical studies of its structure and kinematics

Details The giant galactic H II region NGC 3603 - Optical studies of its structure and kinematics The giant galactic H II region NGC 3603 - Optical studies of its structure and kinematics

Dec 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...242..584b&link_type=abstract

Astrophysical Journal, Part 1, vol. 242, Dec. 1, 1980, p. 584-591.

Physics

42

Cloud Physics, H Ii Regions, Hydrogen Ions, Star Clusters, Stellar Winds, Astronomical Models, Bubbles, Hot Stars, Milky Way Galaxy

Scientific paper

NGC 3603, unlike other Galactic giant H II regions, is both similar to numerous often-studied extragalactic giant nebulae and optically visible. Its morphology is found to be that of a highly ionized dense core (electron density not less than 1800 per cu cm) and faint outer halo (electron density of about 100 per cu cm) of dimensions 7 and 50 pc, respectively. Throughout the nebula supersonic turbulent velocities, 40 km/s, are found; no global pattern of radial or rotational motions is evident. Surrounding the central star cluster there appears to be a small (r = 0.6 pc) wind-driven 'stellar bubble' like those found in association with many WN stars. NGC 3603 is found to be a representative member of the class of giant H II regions.

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