12-μm fine-structure emission line and continuum images of G333.6-0.2

Journal article

We present high spatial resolution (∼0.8 arcsec) diffraction-limited 12.8-μm Ne II fine-structure emission line and 12.5-μm continuum images of the bright southern compact H II region G333.6-0.2, taken with the mid-infrared imaging polarimeter NIMPOL. The two images show remarkably similar, compact, yet asymmetric, flux distributions. The [Ne II] image shows a complex structure near the ionizing source(s) which we interpret in terms of the ionization structure of the H II region. It is found that G333.6-0.2 is more likely to be excited by a cluster of O and B stars than by a single star.

Authors: Fujiyoshi, T; Smith, C; Moore, T; Aitken, D; Roche, P

• Journal: Monthly Notices of the Royal Astronomical Society
• Volume: 296
• Issue: 2
• Pages: 225-230
• Publication date: 1998-05-11
• ISSN: 0035-8711
• Language: English
• Keywords: H II regions; ISM: individual: G333.6-0.2; Infrared: ISM: continuum; Infrared; ISM: lines and bands