Submillimeter spectroscopy of southern hot cores: NGC6334(I) and G327.3-0.6

Details Submillimeter spectroscopy of southern hot cores: NGC6334(I) and G327.3-0.6 Submillimeter spectroscopy of southern hot cores: NGC6334(I) and G327.3-0.6

2006-05-19

arxiv.org/abs/astro-ph/0605487v1

Astronomy and Astrophysics

Astrophysics

APEX A&A special issue, accepted

Scientific paper

10.1051/0004-6361:20065398

High-mass star-forming regions are known to have a rich molecular spectrum from many species. Some of the very highly excited lines are emitted from very hot and dense gas close to the central object(s). The physics and chemistry of the inner cores of two high mass star forming regions, NGC6334(I) and G327.3-0.6, shall be characterized. Submillimeter line surveys with the APEX telescope provide spectra which sample many molecular lines at high excitation stages. Partial spectral surveys were obtained, the lines were identified, physical parameters were determined through fitting of the spectra. Both sources show similar spectra that are comparable to that of the only other high mass star forming region ever surveyed in this frequency range}, Orion-KL, but with an even higher line density. Evidence for very compact, very hot sources is found.

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