Sulphur monoxide in the galactic cirrus.

Details Sulphur monoxide in the galactic cirrus. Sulphur monoxide in the galactic cirrus.

Sep 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995a%26a...301..941h&link_type=abstract

Astronomy and Astrophysics, v.301, p.941

Astronomy and Astrophysics

Astrophysics

9

Interstellar Medium (Ism): Abundances, Ism: Clouds, Ism: Individual Objects: Mcld 123.5+24.9, Mcld 126.6+24.5, Ism: Molecules, Radio Lines: Ism

Scientific paper

We report the discovery of the SO (N_J_=1_0_-0_1_) line near 30GHz with the MPIfR 100m telescope in two dense cores located in the galactic cirrus clouds MCLD 123.5+24.9 and MCLD 126.6+24.5. The emission is quite intense and extends over several arcmin. Since the SO (N_J_=1_0_-0_1_) line is most likely optically thick, we can only derive a lower limit for the cloud averaged column densities N(SO)>10^13^cm^-2^. Both cores have also been mapped in the ^13^CO (J=3-2) transition using the KOSMA 3-m telescope. Applying an escape propability model to match the observed line strength of this transition and of already published (J=1-0) data gives column densities in the range 2.0x10^15^cm^-2^=4x10^-9^.

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