Open Access12‐μm fine‐structure emission line and continuum images of G333.6–0.2
Author(s) -
Fujiyoshi Takuya,
Smith Craig H.,
Moore Toby J. T.,
Aitken David K.,
Roche Patrick F.,
Quinn Dale E.
Publication year - 1998
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1046/j.1365-8711.1998.01220.x
Subject(s) - physics , astrophysics , stars , h ii region , emission spectrum , ionization , infrared , excited state , image resolution , line (geometry) , star formation , astronomy , spectral line , optics , ion , atomic physics , geometry , mathematics , quantum mechanics
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.